Vulnerabilities > CVE-2020-0610 - Improper Input Validation vulnerability in Microsoft products

047910
CVSS 10.0 - CRITICAL
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
COMPLETE
Integrity impact
COMPLETE
Availability impact
COMPLETE
network
low complexity
microsoft
CWE-20
critical
nessus
exploit available

Summary

A remote code execution vulnerability exists in Windows Remote Desktop Gateway (RD Gateway) when an unauthenticated attacker connects to the target system using RDP and sends specially crafted requests, aka 'Windows Remote Desktop Gateway (RD Gateway) Remote Code Execution Vulnerability'. This CVE ID is unique from CVE-2020-0609.

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Buffer Overflow via Environment Variables
    This attack pattern involves causing a buffer overflow through manipulation of environment variables. Once the attacker finds that they can modify an environment variable, they may try to overflow associated buffers. This attack leverages implicit trust often placed in environment variables.
  • Server Side Include (SSI) Injection
    An attacker can use Server Side Include (SSI) Injection to send code to a web application that then gets executed by the web server. Doing so enables the attacker to achieve similar results to Cross Site Scripting, viz., arbitrary code execution and information disclosure, albeit on a more limited scale, since the SSI directives are nowhere near as powerful as a full-fledged scripting language. Nonetheless, the attacker can conveniently gain access to sensitive files, such as password files, and execute shell commands.
  • Cross Zone Scripting
    An attacker is able to cause a victim to load content into their web-browser that bypasses security zone controls and gain access to increased privileges to execute scripting code or other web objects such as unsigned ActiveX controls or applets. This is a privilege elevation attack targeted at zone-based web-browser security. In a zone-based model, pages belong to one of a set of zones corresponding to the level of privilege assigned to that page. Pages in an untrusted zone would have a lesser level of access to the system and/or be restricted in the types of executable content it was allowed to invoke. In a cross-zone scripting attack, a page that should be assigned to a less privileged zone is granted the privileges of a more trusted zone. This can be accomplished by exploiting bugs in the browser, exploiting incorrect configuration in the zone controls, through a cross-site scripting attack that causes the attackers' content to be treated as coming from a more trusted page, or by leveraging some piece of system functionality that is accessible from both the trusted and less trusted zone. This attack differs from "Restful Privilege Escalation" in that the latter correlates to the inadequate securing of RESTful access methods (such as HTTP DELETE) on the server, while cross-zone scripting attacks the concept of security zones as implemented by a browser.
  • Cross Site Scripting through Log Files
    An attacker may leverage a system weakness where logs are susceptible to log injection to insert scripts into the system's logs. If these logs are later viewed by an administrator through a thin administrative interface and the log data is not properly HTML encoded before being written to the page, the attackers' scripts stored in the log will be executed in the administrative interface with potentially serious consequences. This attack pattern is really a combination of two other attack patterns: log injection and stored cross site scripting.
  • Command Line Execution through SQL Injection
    An attacker uses standard SQL injection methods to inject data into the command line for execution. This could be done directly through misuse of directives such as MSSQL_xp_cmdshell or indirectly through injection of data into the database that would be interpreted as shell commands. Sometime later, an unscrupulous backend application (or could be part of the functionality of the same application) fetches the injected data stored in the database and uses this data as command line arguments without performing proper validation. The malicious data escapes that data plane by spawning new commands to be executed on the host.

Exploit-Db

idEDB-ID:47964
last seen2020-01-24
modified2020-01-23
published2020-01-23
reporterExploit-DB
sourcehttps://www.exploit-db.com/download/47964
titleRemote Desktop Gateway - 'BlueGate' Denial of Service (PoC)

Nessus

  • NASL familyWindows : Microsoft Bulletins
    NASL idSMB_NT_MS20_JAN_4534283.NASL
    descriptionThe remote Windows host is missing security update 4534288 or cumulative update 4534283. It is, therefore, affected by multiple vulnerabilities : - A remote code execution vulnerability exists in Windows Remote Desktop Gateway (RD Gateway) when an unauthenticated attacker connects to the target system using RDP and sends specially crafted requests. This vulnerability is pre-authentication and requires no user interaction. An attacker who successfully exploited this vulnerability could execute arbitrary code on the target system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. (CVE-2020-0609, CVE-2020-0610) - An information disclosure vulnerability exists when Remote Desktop Web Access improperly handles credential information. An attacker who successfully exploited this vulnerability could obtain legitimate users
    last seen2020-03-27
    modified2020-01-14
    plugin id132861
    published2020-01-14
    reporterThis script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/132861
    titleKB4534288: Windows Server 2012 January 2020 Security Update
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    
    
    
    
    
    # The descriptive text and package checks in this plugin were  
    # extracted from the Microsoft Security Updates API. The text
    # itself is copyright (C) Microsoft Corporation.
    #
    
    
    
    
    include('compat.inc');
    
    if (description)
    {
      script_id(132861);
      script_version("1.8");
      script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/26");
    
      script_cve_id(
        "CVE-2020-0605",
        "CVE-2020-0606",
        "CVE-2020-0607",
        "CVE-2020-0608",
        "CVE-2020-0609",
        "CVE-2020-0610",
        "CVE-2020-0611",
        "CVE-2020-0615",
        "CVE-2020-0620",
        "CVE-2020-0625",
        "CVE-2020-0626",
        "CVE-2020-0627",
        "CVE-2020-0628",
        "CVE-2020-0629",
        "CVE-2020-0630",
        "CVE-2020-0631",
        "CVE-2020-0632",
        "CVE-2020-0634",
        "CVE-2020-0635",
        "CVE-2020-0637",
        "CVE-2020-0639",
        "CVE-2020-0640",
        "CVE-2020-0641",
        "CVE-2020-0642",
        "CVE-2020-0643",
        "CVE-2020-0644",
        "CVE-2020-0646"
      );
      script_xref(name:"MSKB", value:"4534288");
      script_xref(name:"MSKB", value:"4534283");
      script_xref(name:"MSFT", value:"MS20-4534288");
      script_xref(name:"MSFT", value:"MS20-4534283");
    
      script_name(english:"KB4534288: Windows Server 2012 January 2020 Security Update");
      script_summary(english:"Checks for rollup.");
    
      script_set_attribute(attribute:"synopsis", value:
    "The remote Windows host is affected by multiple vulnerabilities.");
      script_set_attribute(attribute:"description", value:
    "The remote Windows host is missing security update 4534288
    or cumulative update 4534283. It is, therefore, affected by
    multiple vulnerabilities :
    
      - A remote code execution vulnerability exists in Windows
        Remote Desktop Gateway (RD Gateway) when an
        unauthenticated attacker connects to the target system
        using RDP and sends specially crafted requests. This
        vulnerability is pre-authentication and requires no user
        interaction. An attacker who successfully exploited this
        vulnerability could execute arbitrary code on the target
        system. An attacker could then install programs; view,
        change, or delete data; or create new accounts with full
        user rights.  (CVE-2020-0609, CVE-2020-0610)
    
      - An information disclosure vulnerability exists when
        Remote Desktop Web Access improperly handles credential
        information. An attacker who successfully exploited this
        vulnerability could obtain legitimate users'
        credentials.  (CVE-2020-0637)
    
      - An information disclosure vulnerability exists in the
        Windows Common Log File System (CLFS) driver when it
        fails to properly handle objects in memory. An attacker
        who successfully exploited this vulnerability could
        potentially read data that was not intended to be
        disclosed. Note that this vulnerability would not allow
        an attacker to execute code or to elevate their user
        rights directly, but it could be used to obtain
        information that could be used to try to further
        compromise the affected system.  (CVE-2020-0615,
        CVE-2020-0639)
    
      - An elevation of privilege vulnerability exists in
        Windows when the Win32k component fails to properly
        handle objects in memory. An attacker who successfully
        exploited this vulnerability could run arbitrary code in
        kernel mode. An attacker could then install programs;
        view, change, or delete data; or create new accounts
        with full user rights.  (CVE-2020-0642)
    
      - A remote code execution vulnerability exists in .NET
        software when the software fails to check the source
        markup of a file. An attacker who successfully exploited
        the vulnerability could run arbitrary code in the
        context of the current user. If the current user is
        logged on with administrative user rights, an attacker
        could take control of the affected system. An attacker
        could then install programs; view, change, or delete
        data; or create new accounts with full user rights.
        (CVE-2020-0605, CVE-2020-0606)
    
      - An elevation of privilege vulnerability exists in
        Microsoft Windows when Windows fails to properly handle
        certain symbolic links. An attacker who successfully
        exploited this vulnerability could potentially set
        certain items to run at a higher level and thereby
        elevate permissions.  (CVE-2020-0635)
    
      - An information disclosure vulnerability exists in the
        way that the Windows Graphics Device Interface Plus
        (GDI+) handles objects in memory, allowing an attacker
        to retrieve information from a targeted system. By
        itself, the information disclosure does not allow
        arbitrary code execution; however, it could allow
        arbitrary code to be run if the attacker uses it in
        combination with another vulnerability.  (CVE-2020-0643)
    
      - A remote code execution vulnerability exists when
        Internet Explorer improperly accesses objects in memory.
        The vulnerability could corrupt memory in such a way
        that an attacker could execute arbitrary code in the
        context of the current user. An attacker who
        successfully exploited the vulnerability could gain the
        same user rights as the current user.  (CVE-2020-0640)
    
      - An information disclosure vulnerability exists when the
        win32k component improperly provides kernel information.
        An attacker who successfully exploited the vulnerability
        could obtain information to further compromise the users
        system.  (CVE-2020-0608)
    
      - An elevation of privilege vulnerability exists when
        Microsoft Cryptographic Services improperly handles
        files. An attacker could exploit the vulnerability to
        overwrite or modify a protected file leading to a
        privilege escalation.  (CVE-2020-0620)
    
      - An elevation of privilege vulnerability exists in the
        way that the Windows Search Indexer handles objects in
        memory. An attacker who successfully exploited the
        vulnerability could execute code with elevated
        permissions.  (CVE-2020-0625, CVE-2020-0626,
        CVE-2020-0627, CVE-2020-0628, CVE-2020-0629,
        CVE-2020-0630, CVE-2020-0631, CVE-2020-0632)
    
      - An elevation of privilege vulnerability exists when the
        Windows Common Log File System (CLFS) driver improperly
        handles objects in memory. An attacker who successfully
        exploited this vulnerability could run processes in an
        elevated context.  (CVE-2020-0634)
    
      - An elevation of privilege vulnerability exists in
        Windows Media Service that allows file creation in
        arbitrary locations.  (CVE-2020-0641)
    
      - An information disclosure vulnerability exists in the
        way that Microsoft Graphics Components handle objects in
        memory. An attacker who successfully exploited the
        vulnerability could obtain information that could be
        useful for further exploitation.  (CVE-2020-0607)
    
      - A remote code execution vulnerability exists when the
        Microsoft .NET Framework fails to validate input
        properly. An attacker who successfully exploited this
        vulnerability could take control of an affected system.
        An attacker could then install programs; view, change,
        or delete data; or create new accounts with full user
        rights. Users whose accounts are configured to have
        fewer user rights on the system could be less impacted
        than users who operate with administrative user rights.
        (CVE-2020-0646)
    
      - A remote code execution vulnerability exists in the
        Windows Remote Desktop Client when a user connects to a
        malicious server. An attacker who successfully exploited
        this vulnerability could execute arbitrary code on the
        computer of the connecting client. An attacker could
        then install programs; view, change, or delete data; or
        create new accounts with full user rights.
        (CVE-2020-0611)
    
      - An elevation of privilege vulnerability exists when
        Microsoft Windows implements predictable memory section
        names. An attacker who successfully exploited this
        vulnerability could run arbitrary code as system. An
        attacker could then install programs; view, change, or
        delete data; or create new accounts with full user
        rights.  (CVE-2020-0644)");
      # https://support.microsoft.com/en-us/help/4534288/windows-server-2012-update-kb4534288
      script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?00a24f59");
      # https://support.microsoft.com/en-us/help/4534283/windows-server-2012-update-kb4534283
      script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?27812eb5");
      script_set_attribute(attribute:"solution", value:
    "Apply Security Only update KB4534288 or Cumulative Update KB4534283.");
      script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
      script_set_cvss_temporal_vector("CVSS2#E:H/RL:OF/RC:C");
      script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
      script_set_cvss3_temporal_vector("CVSS:3.0/E:H/RL:O/RC:C");
      script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-0646");
    
      script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
      script_set_attribute(attribute:"exploit_available", value:"true");
      script_set_attribute(attribute:"exploited_by_malware", value:"true");
      script_set_attribute(attribute:"metasploit_name", value:'SharePoint Workflows XOML Injection');
      script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");
    
      script_set_attribute(attribute:"vuln_publication_date", value:"2020/01/14");
      script_set_attribute(attribute:"patch_publication_date", value:"2020/01/14");
      script_set_attribute(attribute:"plugin_publication_date", value:"2020/01/14");
    
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:microsoft:windows");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_family(english:"Windows : Microsoft Bulletins");
    
      script_copyright(english:"This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
    
      script_dependencies("smb_check_rollup.nasl", "smb_hotfixes.nasl", "ms_bulletin_checks_possible.nasl");
      script_require_keys("SMB/MS_Bulletin_Checks/Possible");
      script_require_ports(139, 445, "Host/patch_management_checks");
    
      exit(0);
    }
    
    include("audit.inc");
    include("smb_hotfixes_fcheck.inc");
    include("smb_hotfixes.inc");
    include("smb_func.inc");
    include("misc_func.inc");
    
    get_kb_item_or_exit("SMB/MS_Bulletin_Checks/Possible");
    
    bulletin = "MS20-01";
    kbs = make_list('4534288', '4534283');
    
    if (get_kb_item("Host/patch_management_checks")) hotfix_check_3rd_party(bulletin:bulletin, kbs:kbs, severity:SECURITY_HOLE);
    
    get_kb_item_or_exit("SMB/Registry/Enumerated");
    get_kb_item_or_exit("SMB/WindowsVersion", exit_code:1);
    
    if (hotfix_check_sp_range(win8:'0') <= 0) audit(AUDIT_OS_SP_NOT_VULN);
    
    # Windows 8 EOL
    productname = get_kb_item_or_exit("SMB/ProductName", exit_code:1);
    if ("Windows 8" >< productname) audit(AUDIT_OS_SP_NOT_VULN);
    
    share = hotfix_get_systemdrive(as_share:TRUE, exit_on_fail:TRUE);
    if (!is_accessible_share(share:share)) audit(AUDIT_SHARE_FAIL, share);
    
    if (
      smb_check_rollup(os:"6.2",
                       sp:0,
                       rollup_date:"01_2020",
                       bulletin:bulletin,
                       rollup_kb_list:[4534288, 4534283])
    )
    {
      replace_kb_item(name:'SMB/Missing/'+bulletin, value:TRUE);
      hotfix_security_hole();
      hotfix_check_fversion_end();
      exit(0);
    }
    else
    {
      hotfix_check_fversion_end();
      audit(AUDIT_HOST_NOT, hotfix_get_audit_report());
    }
    
    
  • NASL familyWindows : Microsoft Bulletins
    NASL idSMB_NT_MS20_JAN_4534271.NASL
    descriptionThe remote Windows host is missing security update 4534271. It is, therefore, affected by multiple vulnerabilities : - A remote code execution vulnerability exists in Windows Remote Desktop Gateway (RD Gateway) when an unauthenticated attacker connects to the target system using RDP and sends specially crafted requests. This vulnerability is pre-authentication and requires no user interaction. An attacker who successfully exploited this vulnerability could execute arbitrary code on the target system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. (CVE-2020-0609, CVE-2020-0610) - An information disclosure vulnerability exists when Remote Desktop Web Access improperly handles credential information. An attacker who successfully exploited this vulnerability could obtain legitimate users
    last seen2020-03-27
    modified2020-01-14
    plugin id132858
    published2020-01-14
    reporterThis script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/132858
    titleKB4534271: Windows 10 Version 1607 and Windows Server 2016 January 2020 Security Update
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    
    
    
    
    
    # The descriptive text and package checks in this plugin were  
    # extracted from the Microsoft Security Updates API. The text
    # itself is copyright (C) Microsoft Corporation.
    #
    
    
    
    
    
    include('compat.inc');
    
    if (description)
    {
      script_id(132858);
      script_version("1.7");
      script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/26");
    
      script_cve_id(
        "CVE-2020-0601",
        "CVE-2020-0605",
        "CVE-2020-0606",
        "CVE-2020-0607",
        "CVE-2020-0608",
        "CVE-2020-0609",
        "CVE-2020-0610",
        "CVE-2020-0611",
        "CVE-2020-0612",
        "CVE-2020-0613",
        "CVE-2020-0614",
        "CVE-2020-0615",
        "CVE-2020-0617",
        "CVE-2020-0620",
        "CVE-2020-0622",
        "CVE-2020-0623",
        "CVE-2020-0625",
        "CVE-2020-0626",
        "CVE-2020-0627",
        "CVE-2020-0628",
        "CVE-2020-0629",
        "CVE-2020-0630",
        "CVE-2020-0631",
        "CVE-2020-0632",
        "CVE-2020-0633",
        "CVE-2020-0634",
        "CVE-2020-0635",
        "CVE-2020-0637",
        "CVE-2020-0639",
        "CVE-2020-0640",
        "CVE-2020-0641",
        "CVE-2020-0642",
        "CVE-2020-0643",
        "CVE-2020-0644",
        "CVE-2020-0646"
      );
      script_xref(name:"MSKB", value:"4534271");
      script_xref(name:"MSFT", value:"MS20-4534271");
      script_xref(name:"IAVA", value:"2020-A-0010");
    
      script_name(english:"KB4534271: Windows 10 Version 1607 and Windows Server 2016 January 2020 Security Update");
      script_summary(english:"Checks for rollup.");
    
      script_set_attribute(attribute:"synopsis", value:
    "The remote Windows host is affected by multiple vulnerabilities.");
      script_set_attribute(attribute:"description", value:
    "The remote Windows host is missing security update 4534271.
    It is, therefore, affected by multiple vulnerabilities :
    
      - A remote code execution vulnerability exists in Windows
        Remote Desktop Gateway (RD Gateway) when an
        unauthenticated attacker connects to the target system
        using RDP and sends specially crafted requests. This
        vulnerability is pre-authentication and requires no user
        interaction. An attacker who successfully exploited this
        vulnerability could execute arbitrary code on the target
        system. An attacker could then install programs; view,
        change, or delete data; or create new accounts with full
        user rights.  (CVE-2020-0609, CVE-2020-0610)
    
      - An information disclosure vulnerability exists when
        Remote Desktop Web Access improperly handles credential
        information. An attacker who successfully exploited this
        vulnerability could obtain legitimate users'
        credentials.  (CVE-2020-0637)
    
      - An information disclosure vulnerability exists in the
        Windows Common Log File System (CLFS) driver when it
        fails to properly handle objects in memory. An attacker
        who successfully exploited this vulnerability could
        potentially read data that was not intended to be
        disclosed. Note that this vulnerability would not allow
        an attacker to execute code or to elevate their user
        rights directly, but it could be used to obtain
        information that could be used to try to further
        compromise the affected system.  (CVE-2020-0615,
        CVE-2020-0639)
    
      - An elevation of privilege vulnerability exists in
        Windows when the Win32k component fails to properly
        handle objects in memory. An attacker who successfully
        exploited this vulnerability could run arbitrary code in
        kernel mode. An attacker could then install programs;
        view, change, or delete data; or create new accounts
        with full user rights.  (CVE-2020-0642)
    
      - A remote code execution vulnerability exists in .NET
        software when the software fails to check the source
        markup of a file. An attacker who successfully exploited
        the vulnerability could run arbitrary code in the
        context of the current user. If the current user is
        logged on with administrative user rights, an attacker
        could take control of the affected system. An attacker
        could then install programs; view, change, or delete
        data; or create new accounts with full user rights.
        (CVE-2020-0605, CVE-2020-0606)
    
      - A denial of service vulnerability exists when Microsoft
        Hyper-V Virtual PCI on a host server fails to properly
        validate input from a privileged user on a guest
        operating system.  (CVE-2020-0617)
    
      - An elevation of privilege vulnerability exists in
        Microsoft Windows when Windows fails to properly handle
        certain symbolic links. An attacker who successfully
        exploited this vulnerability could potentially set
        certain items to run at a higher level and thereby
        elevate permissions.  (CVE-2020-0635)
    
      - An information disclosure vulnerability exists in the
        way that the Windows Graphics Device Interface Plus
        (GDI+) handles objects in memory, allowing an attacker
        to retrieve information from a targeted system. By
        itself, the information disclosure does not allow
        arbitrary code execution; however, it could allow
        arbitrary code to be run if the attacker uses it in
        combination with another vulnerability.  (CVE-2020-0643)
    
      - A remote code execution vulnerability exists when
        Internet Explorer improperly accesses objects in memory.
        The vulnerability could corrupt memory in such a way
        that an attacker could execute arbitrary code in the
        context of the current user. An attacker who
        successfully exploited the vulnerability could gain the
        same user rights as the current user.  (CVE-2020-0640)
    
      - A denial of service vulnerability exists in Windows
        Remote Desktop Gateway (RD Gateway) when an attacker
        connects to the target system using RDP and sends
        specially crafted requests. An attacker who successfully
        exploited this vulnerability could cause the RD Gateway
        service on the target system to stop responding.
        (CVE-2020-0612)
    
      - An information disclosure vulnerability exists when the
        Microsoft Windows Graphics Component improperly handles
        objects in memory. An attacker who successfully
        exploited the vulnerability could obtain information to
        further compromise the users system.  (CVE-2020-0622)
    
      - An elevation of privilege vulnerability exists in the
        way that the Windows Search Indexer handles objects in
        memory. An attacker who successfully exploited the
        vulnerability could execute code with elevated
        permissions.  (CVE-2020-0613, CVE-2020-0614,
        CVE-2020-0623, CVE-2020-0625, CVE-2020-0626,
        CVE-2020-0627, CVE-2020-0628, CVE-2020-0629,
        CVE-2020-0630, CVE-2020-0631, CVE-2020-0632,
        CVE-2020-0633)
    
      - An information disclosure vulnerability exists when the
        win32k component improperly provides kernel information.
        An attacker who successfully exploited the vulnerability
        could obtain information to further compromise the users
        system.  (CVE-2020-0608)
    
      - An elevation of privilege vulnerability exists when
        Microsoft Cryptographic Services improperly handles
        files. An attacker could exploit the vulnerability to
        overwrite or modify a protected file leading to a
        privilege escalation.  (CVE-2020-0620)
    
      - An elevation of privilege vulnerability exists when the
        Windows Common Log File System (CLFS) driver improperly
        handles objects in memory. An attacker who successfully
        exploited this vulnerability could run processes in an
        elevated context.  (CVE-2020-0634)
    
      - An elevation of privilege vulnerability exists in
        Windows Media Service that allows file creation in
        arbitrary locations.  (CVE-2020-0641)
    
      - An information disclosure vulnerability exists in the
        way that Microsoft Graphics Components handle objects in
        memory. An attacker who successfully exploited the
        vulnerability could obtain information that could be
        useful for further exploitation.  (CVE-2020-0607)
    
      - A remote code execution vulnerability exists when the
        Microsoft .NET Framework fails to validate input
        properly. An attacker who successfully exploited this
        vulnerability could take control of an affected system.
        An attacker could then install programs; view, change,
        or delete data; or create new accounts with full user
        rights. Users whose accounts are configured to have
        fewer user rights on the system could be less impacted
        than users who operate with administrative user rights.
        (CVE-2020-0646)
    
      - A remote code execution vulnerability exists in the
        Windows Remote Desktop Client when a user connects to a
        malicious server. An attacker who successfully exploited
        this vulnerability could execute arbitrary code on the
        computer of the connecting client. An attacker could
        then install programs; view, change, or delete data; or
        create new accounts with full user rights.
        (CVE-2020-0611)
    
      - An elevation of privilege vulnerability exists when
        Microsoft Windows implements predictable memory section
        names. An attacker who successfully exploited this
        vulnerability could run arbitrary code as system. An
        attacker could then install programs; view, change, or
        delete data; or create new accounts with full user
        rights.  (CVE-2020-0644)
    
      - A spoofing vulnerability exists in the way Windows
        CryptoAPI (Crypt32.dll) validates Elliptic Curve
        Cryptography (ECC) certificates. An attacker could
        exploit the vulnerability by using a spoofed code-
        signing certificate to sign a malicious executable,
        making it appear the file was from a trusted, legitimate
        source. The user would have no way of knowing the file
        was malicious, because the digital signature would
        appear to be from a trusted provider. A successful
        exploit could also allow the attacker to conduct man-in-
        the-middle attacks and decrypt confidential information
        on user connections to the affected software. The
        security update addresses the vulnerability by ensuring
        that Windows CryptoAPI completely validates ECC
        certificates. (CVE-2020-0601)");
      # https://support.microsoft.com/en-us/help/4534271/windows-10-update-kb4534271
      script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?e147f537");
      script_set_attribute(attribute:"solution", value:
    "Apply Cumulative Update KB4534271.");
      script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
      script_set_cvss_temporal_vector("CVSS2#E:H/RL:OF/RC:C");
      script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
      script_set_cvss3_temporal_vector("CVSS:3.0/E:H/RL:O/RC:C");
      script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-0646");
    
      script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
      script_set_attribute(attribute:"exploit_available", value:"true");
      script_set_attribute(attribute:"exploited_by_malware", value:"true");
      script_set_attribute(attribute:"metasploit_name", value:'SharePoint Workflows XOML Injection');
      script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");
    
      script_set_attribute(attribute:"vuln_publication_date", value:"2020/01/14");
      script_set_attribute(attribute:"patch_publication_date", value:"2020/01/14");
      script_set_attribute(attribute:"plugin_publication_date", value:"2020/01/14");
    
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:microsoft:windows");
      script_set_attribute(attribute:"stig_severity", value:"I");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_family(english:"Windows : Microsoft Bulletins");
    
      script_copyright(english:"This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
    
      script_dependencies("smb_check_rollup.nasl", "smb_hotfixes.nasl", "ms_bulletin_checks_possible.nasl");
      script_require_keys("SMB/MS_Bulletin_Checks/Possible");
      script_require_ports(139, 445, "Host/patch_management_checks");
    
      exit(0);
    }
    
    include("audit.inc");
    include("smb_hotfixes_fcheck.inc");
    include("smb_hotfixes.inc");
    include("smb_func.inc");
    include("misc_func.inc");
    
    get_kb_item_or_exit("SMB/MS_Bulletin_Checks/Possible");
    
    bulletin = "MS20-01";
    kbs = make_list('4534271');
    
    if (get_kb_item("Host/patch_management_checks")) hotfix_check_3rd_party(bulletin:bulletin, kbs:kbs, severity:SECURITY_HOLE);
    
    get_kb_item_or_exit("SMB/Registry/Enumerated");
    get_kb_item_or_exit("SMB/WindowsVersion", exit_code:1);
    
    if (hotfix_check_sp_range(win10:'0') <= 0) audit(AUDIT_OS_SP_NOT_VULN);
    
    share = hotfix_get_systemdrive(as_share:TRUE, exit_on_fail:TRUE);
    if (!is_accessible_share(share:share)) audit(AUDIT_SHARE_FAIL, share);
    
    if (
      smb_check_rollup(os:"10",
                       sp:0,
                       os_build:"14393",
                       rollup_date:"01_2020",
                       bulletin:bulletin,
                       rollup_kb_list:[4534271])
    )
    {
      replace_kb_item(name:'SMB/Missing/'+bulletin, value:TRUE);
      hotfix_security_hole();
      hotfix_check_fversion_end();
      exit(0);
    }
    else
    {
      hotfix_check_fversion_end();
      audit(AUDIT_HOST_NOT, hotfix_get_audit_report());
    }
    
  • NASL familyWindows : Microsoft Bulletins
    NASL idSMB_NT_MS20_JAN_4534297.NASL
    descriptionThe remote Windows host is missing security update 4534309 or cumulative update 4534297. It is, therefore, affected by multiple vulnerabilities : - An elevation of privilege vulnerability exists in the way that the Windows Search Indexer handles objects in memory. An attacker who successfully exploited the vulnerability could execute code with elevated permissions. (CVE-2020-0613, CVE-2020-0614, CVE-2020-0623, CVE-2020-0625, CVE-2020-0626, CVE-2020-0627, CVE-2020-0628, CVE-2020-0629, CVE-2020-0630, CVE-2020-0631, CVE-2020-0632) - A remote code execution vulnerability exists in Windows Remote Desktop Gateway (RD Gateway) when an unauthenticated attacker connects to the target system using RDP and sends specially crafted requests. This vulnerability is pre-authentication and requires no user interaction. An attacker who successfully exploited this vulnerability could execute arbitrary code on the target system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. (CVE-2020-0609, CVE-2020-0610) - An information disclosure vulnerability exists in the Windows Common Log File System (CLFS) driver when it fails to properly handle objects in memory. An attacker who successfully exploited this vulnerability could potentially read data that was not intended to be disclosed. Note that this vulnerability would not allow an attacker to execute code or to elevate their user rights directly, but it could be used to obtain information that could be used to try to further compromise the affected system. (CVE-2020-0615, CVE-2020-0639) - An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory. An attacker who successfully exploited this vulnerability could run arbitrary code in kernel mode. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. (CVE-2020-0642) - A remote code execution vulnerability exists in .NET software when the software fails to check the source markup of a file. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the current user. If the current user is logged on with administrative user rights, an attacker could take control of the affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. (CVE-2020-0605, CVE-2020-0606) - An information disclosure vulnerability exists when Remote Desktop Web Access improperly handles credential information. An attacker who successfully exploited this vulnerability could obtain legitimate users
    last seen2020-03-27
    modified2020-01-14
    plugin id132863
    published2020-01-14
    reporterThis script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/132863
    titleKB4534309: Windows 8.1 and Windows Server 2012 R2 January 2020 Security Update
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    
    
    
    
    # The descriptive text and package checks in this plugin were  
    # extracted from the Microsoft Security Updates API. The text
    # itself is copyright (C) Microsoft Corporation.
    #
    
    
    
    
    include('compat.inc');
    
    if (description)
    {
      script_id(132863);
      script_version("1.8");
      script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/26");
    
      script_cve_id(
        "CVE-2020-0605",
        "CVE-2020-0606",
        "CVE-2020-0607",
        "CVE-2020-0608",
        "CVE-2020-0609",
        "CVE-2020-0610",
        "CVE-2020-0611",
        "CVE-2020-0613",
        "CVE-2020-0614",
        "CVE-2020-0615",
        "CVE-2020-0620",
        "CVE-2020-0623",
        "CVE-2020-0625",
        "CVE-2020-0626",
        "CVE-2020-0627",
        "CVE-2020-0628",
        "CVE-2020-0629",
        "CVE-2020-0630",
        "CVE-2020-0631",
        "CVE-2020-0632",
        "CVE-2020-0634",
        "CVE-2020-0635",
        "CVE-2020-0637",
        "CVE-2020-0639",
        "CVE-2020-0640",
        "CVE-2020-0641",
        "CVE-2020-0642",
        "CVE-2020-0643",
        "CVE-2020-0644",
        "CVE-2020-0646"
      );
      script_xref(name:"MSKB", value:"4534297");
      script_xref(name:"MSKB", value:"4534309");
      script_xref(name:"MSFT", value:"MS20-4534297");
      script_xref(name:"MSFT", value:"MS20-4534309");
      script_xref(name:"IAVA", value:"2020-A-0026");
    
      script_name(english:"KB4534309: Windows 8.1 and Windows Server 2012 R2 January 2020 Security Update");
      script_summary(english:"Checks for rollup.");
    
      script_set_attribute(attribute:"synopsis", value:
    "The remote Windows host is affected by multiple vulnerabilities.");
      script_set_attribute(attribute:"description", value:
    "The remote Windows host is missing security update 4534309
    or cumulative update 4534297. It is, therefore, affected by
    multiple vulnerabilities :
    
      - An elevation of privilege vulnerability exists in the
        way that the Windows Search Indexer handles objects in
        memory. An attacker who successfully exploited the
        vulnerability could execute code with elevated
        permissions.  (CVE-2020-0613, CVE-2020-0614,
        CVE-2020-0623, CVE-2020-0625, CVE-2020-0626,
        CVE-2020-0627, CVE-2020-0628, CVE-2020-0629,
        CVE-2020-0630, CVE-2020-0631, CVE-2020-0632)
    
      - A remote code execution vulnerability exists in Windows
        Remote Desktop Gateway (RD Gateway) when an
        unauthenticated attacker connects to the target system
        using RDP and sends specially crafted requests. This
        vulnerability is pre-authentication and requires no user
        interaction. An attacker who successfully exploited this
        vulnerability could execute arbitrary code on the target
        system. An attacker could then install programs; view,
        change, or delete data; or create new accounts with full
        user rights.  (CVE-2020-0609, CVE-2020-0610)
    
      - An information disclosure vulnerability exists in the
        Windows Common Log File System (CLFS) driver when it
        fails to properly handle objects in memory. An attacker
        who successfully exploited this vulnerability could
        potentially read data that was not intended to be
        disclosed. Note that this vulnerability would not allow
        an attacker to execute code or to elevate their user
        rights directly, but it could be used to obtain
        information that could be used to try to further
        compromise the affected system.  (CVE-2020-0615,
        CVE-2020-0639)
    
      - An elevation of privilege vulnerability exists in
        Windows when the Win32k component fails to properly
        handle objects in memory. An attacker who successfully
        exploited this vulnerability could run arbitrary code in
        kernel mode. An attacker could then install programs;
        view, change, or delete data; or create new accounts
        with full user rights.  (CVE-2020-0642)
    
      - A remote code execution vulnerability exists in .NET
        software when the software fails to check the source
        markup of a file. An attacker who successfully exploited
        the vulnerability could run arbitrary code in the
        context of the current user. If the current user is
        logged on with administrative user rights, an attacker
        could take control of the affected system. An attacker
        could then install programs; view, change, or delete
        data; or create new accounts with full user rights.
        (CVE-2020-0605, CVE-2020-0606)
    
      - An information disclosure vulnerability exists when
        Remote Desktop Web Access improperly handles credential
        information. An attacker who successfully exploited this
        vulnerability could obtain legitimate users'
        credentials.  (CVE-2020-0637)
    
      - An information disclosure vulnerability exists in the
        way that the Windows Graphics Device Interface Plus
        (GDI+) handles objects in memory, allowing an attacker
        to retrieve information from a targeted system. By
        itself, the information disclosure does not allow
        arbitrary code execution; however, it could allow
        arbitrary code to be run if the attacker uses it in
        combination with another vulnerability.  (CVE-2020-0643)
    
      - A remote code execution vulnerability exists when
        Internet Explorer improperly accesses objects in memory.
        The vulnerability could corrupt memory in such a way
        that an attacker could execute arbitrary code in the
        context of the current user. An attacker who
        successfully exploited the vulnerability could gain the
        same user rights as the current user.  (CVE-2020-0640)
    
      - An elevation of privilege vulnerability exists in
        Microsoft Windows when Windows fails to properly handle
        certain symbolic links. An attacker who successfully
        exploited this vulnerability could potentially set
        certain items to run at a higher level and thereby
        elevate permissions.  (CVE-2020-0635)
    
      - An information disclosure vulnerability exists when the
        win32k component improperly provides kernel information.
        An attacker who successfully exploited the vulnerability
        could obtain information to further compromise the users
        system.  (CVE-2020-0608)
    
      - An elevation of privilege vulnerability exists when
        Microsoft Cryptographic Services improperly handles
        files. An attacker could exploit the vulnerability to
        overwrite or modify a protected file leading to a
        privilege escalation.  (CVE-2020-0620)
    
      - An elevation of privilege vulnerability exists when the
        Windows Common Log File System (CLFS) driver improperly
        handles objects in memory. An attacker who successfully
        exploited this vulnerability could run processes in an
        elevated context.  (CVE-2020-0634)
    
      - An elevation of privilege vulnerability exists in
        Windows Media Service that allows file creation in
        arbitrary locations.  (CVE-2020-0641)
    
      - An information disclosure vulnerability exists in the
        way that Microsoft Graphics Components handle objects in
        memory. An attacker who successfully exploited the
        vulnerability could obtain information that could be
        useful for further exploitation.  (CVE-2020-0607)
    
      - A remote code execution vulnerability exists when the
        Microsoft .NET Framework fails to validate input
        properly. An attacker who successfully exploited this
        vulnerability could take control of an affected system.
        An attacker could then install programs; view, change,
        or delete data; or create new accounts with full user
        rights. Users whose accounts are configured to have
        fewer user rights on the system could be less impacted
        than users who operate with administrative user rights.
        (CVE-2020-0646)
    
      - A remote code execution vulnerability exists in the
        Windows Remote Desktop Client when a user connects to a
        malicious server. An attacker who successfully exploited
        this vulnerability could execute arbitrary code on the
        computer of the connecting client. An attacker could
        then install programs; view, change, or delete data; or
        create new accounts with full user rights.
        (CVE-2020-0611)
    
      - An elevation of privilege vulnerability exists when
        Microsoft Windows implements predictable memory section
        names. An attacker who successfully exploited this
        vulnerability could run arbitrary code as system. An
        attacker could then install programs; view, change, or
        delete data; or create new accounts with full user
        rights.  (CVE-2020-0644)");
      script_set_attribute(attribute:"see_also", value:"https://support.microsoft.com/en-us/help/4534297/windows-8-1-kb4534297");
      script_set_attribute(attribute:"see_also", value:"https://support.microsoft.com/en-us/help/4534309/windows-8-1-kb4534309");
      script_set_attribute(attribute:"solution", value:
    "Apply Security Only update KB4534309 or Cumulative Update KB4534297.");
      script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
      script_set_cvss_temporal_vector("CVSS2#E:H/RL:OF/RC:C");
      script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
      script_set_cvss3_temporal_vector("CVSS:3.0/E:H/RL:O/RC:C");
      script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-0646");
    
      script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
      script_set_attribute(attribute:"exploit_available", value:"true");
      script_set_attribute(attribute:"exploited_by_malware", value:"true");
      script_set_attribute(attribute:"metasploit_name", value:'SharePoint Workflows XOML Injection');
      script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");
    
      script_set_attribute(attribute:"vuln_publication_date", value:"2020/01/14");
      script_set_attribute(attribute:"patch_publication_date", value:"2020/01/14");
      script_set_attribute(attribute:"plugin_publication_date", value:"2020/01/14");
    
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:microsoft:windows");
      script_set_attribute(attribute:"stig_severity", value:"II");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_family(english:"Windows : Microsoft Bulletins");
    
      script_copyright(english:"This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
    
      script_dependencies("smb_check_rollup.nasl", "smb_hotfixes.nasl", "ms_bulletin_checks_possible.nasl");
      script_require_keys("SMB/MS_Bulletin_Checks/Possible");
      script_require_ports(139, 445, "Host/patch_management_checks");
    
      exit(0);
    }
    
    include("audit.inc");
    include("smb_hotfixes_fcheck.inc");
    include("smb_hotfixes.inc");
    include("smb_func.inc");
    include("misc_func.inc");
    
    get_kb_item_or_exit("SMB/MS_Bulletin_Checks/Possible");
    
    bulletin = "MS20-01";
    kbs = make_list('4534297', '4534309');
    
    if (get_kb_item("Host/patch_management_checks")) hotfix_check_3rd_party(bulletin:bulletin, kbs:kbs, severity:SECURITY_HOLE);
    
    get_kb_item_or_exit("SMB/Registry/Enumerated");
    get_kb_item_or_exit("SMB/WindowsVersion", exit_code:1);
    
    if (hotfix_check_sp_range(win81:'0') <= 0) audit(AUDIT_OS_SP_NOT_VULN);
    
    # Windows 8 EOL
    productname = get_kb_item_or_exit("SMB/ProductName", exit_code:1);
    if ("Windows 8" >< productname && "8.1" >!< productname)
      audit(AUDIT_OS_SP_NOT_VULN);
    
    share = hotfix_get_systemdrive(as_share:TRUE, exit_on_fail:TRUE);
    if (!is_accessible_share(share:share)) audit(AUDIT_SHARE_FAIL, share);
    
    if (
      smb_check_rollup(os:"6.3",
                       sp:0,
                       rollup_date:"01_2020",
                       bulletin:bulletin,
                       rollup_kb_list:[4534297, 4534309])
    )
    {
      replace_kb_item(name:'SMB/Missing/'+bulletin, value:TRUE);
      hotfix_security_hole();
      hotfix_check_fversion_end();
      exit(0);
    }
    else
    {
      hotfix_check_fversion_end();
      audit(AUDIT_HOST_NOT, hotfix_get_audit_report());
    }
    
    
  • NASL familyWindows : Microsoft Bulletins
    NASL idSMB_NT_MS20_JAN_4534273.NASL
    descriptionThe remote Windows host is missing security update 4534273. It is, therefore, affected by multiple vulnerabilities : - A remote code execution vulnerability exists in Windows Remote Desktop Gateway (RD Gateway) when an unauthenticated attacker connects to the target system using RDP and sends specially crafted requests. This vulnerability is pre-authentication and requires no user interaction. An attacker who successfully exploited this vulnerability could execute arbitrary code on the target system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. (CVE-2020-0609, CVE-2020-0610) - An information disclosure vulnerability exists when Remote Desktop Web Access improperly handles credential information. An attacker who successfully exploited this vulnerability could obtain legitimate users
    last seen2020-03-27
    modified2020-01-14
    plugin id132859
    published2020-01-14
    reporterThis script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/132859
    titleKB4534273: Windows 10 Version 1809 and Windows Server 2019 January 2020 Security Update
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    
    
    
    
    
    # The descriptive text and package checks in this plugin were  
    # extracted from the Microsoft Security Updates API. The text
    # itself is copyright (C) Microsoft Corporation.
    #
    
    
    
    
    
    include('compat.inc');
    
    if (description)
    {
      script_id(132859);
      script_version("1.7");
      script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/26");
    
      script_cve_id(
        "CVE-2020-0601",
        "CVE-2020-0605",
        "CVE-2020-0606",
        "CVE-2020-0607",
        "CVE-2020-0608",
        "CVE-2020-0609",
        "CVE-2020-0610",
        "CVE-2020-0611",
        "CVE-2020-0612",
        "CVE-2020-0613",
        "CVE-2020-0614",
        "CVE-2020-0615",
        "CVE-2020-0616",
        "CVE-2020-0617",
        "CVE-2020-0620",
        "CVE-2020-0621",
        "CVE-2020-0623",
        "CVE-2020-0625",
        "CVE-2020-0626",
        "CVE-2020-0627",
        "CVE-2020-0628",
        "CVE-2020-0629",
        "CVE-2020-0630",
        "CVE-2020-0631",
        "CVE-2020-0632",
        "CVE-2020-0633",
        "CVE-2020-0634",
        "CVE-2020-0635",
        "CVE-2020-0637",
        "CVE-2020-0638",
        "CVE-2020-0639",
        "CVE-2020-0640",
        "CVE-2020-0641",
        "CVE-2020-0642",
        "CVE-2020-0643",
        "CVE-2020-0644",
        "CVE-2020-0646"
      );
      script_xref(name:"MSKB", value:"4534273");
      script_xref(name:"MSFT", value:"MS20-4534273");
      script_xref(name:"IAVA", value:"2020-A-0010");
    
      script_name(english:"KB4534273: Windows 10 Version 1809 and Windows Server 2019 January 2020 Security Update");
      script_summary(english:"Checks for rollup.");
    
      script_set_attribute(attribute:"synopsis", value:
    "The remote Windows host is affected by multiple vulnerabilities.");
      script_set_attribute(attribute:"description", value:
    "The remote Windows host is missing security update 4534273.
    It is, therefore, affected by multiple vulnerabilities :
    
      - A remote code execution vulnerability exists in Windows
        Remote Desktop Gateway (RD Gateway) when an
        unauthenticated attacker connects to the target system
        using RDP and sends specially crafted requests. This
        vulnerability is pre-authentication and requires no user
        interaction. An attacker who successfully exploited this
        vulnerability could execute arbitrary code on the target
        system. An attacker could then install programs; view,
        change, or delete data; or create new accounts with full
        user rights.  (CVE-2020-0609, CVE-2020-0610)
    
      - An information disclosure vulnerability exists when
        Remote Desktop Web Access improperly handles credential
        information. An attacker who successfully exploited this
        vulnerability could obtain legitimate users'
        credentials.  (CVE-2020-0637)
    
      - An elevation of privilege vulnerability exists in
        Windows when the Win32k component fails to properly
        handle objects in memory. An attacker who successfully
        exploited this vulnerability could run arbitrary code in
        kernel mode. An attacker could then install programs;
        view, change, or delete data; or create new accounts
        with full user rights.  (CVE-2020-0642)
    
      - A denial of service vulnerability exists when Microsoft
        Hyper-V Virtual PCI on a host server fails to properly
        validate input from a privileged user on a guest
        operating system.  (CVE-2020-0617)
    
      - An information disclosure vulnerability exists in the
        way that the Windows Graphics Device Interface Plus
        (GDI+) handles objects in memory, allowing an attacker
        to retrieve information from a targeted system. By
        itself, the information disclosure does not allow
        arbitrary code execution; however, it could allow
        arbitrary code to be run if the attacker uses it in
        combination with another vulnerability.  (CVE-2020-0643)
    
      - A denial of service vulnerability exists when Windows
        improperly handles hard links. An attacker who
        successfully exploited the vulnerability could cause a
        target system to stop responding.  (CVE-2020-0616)
    
      - An information disclosure vulnerability exists in the
        way that Microsoft Graphics Components handle objects in
        memory. An attacker who successfully exploited the
        vulnerability could obtain information that could be
        useful for further exploitation.  (CVE-2020-0607)
    
      - A remote code execution vulnerability exists in the
        Windows Remote Desktop Client when a user connects to a
        malicious server. An attacker who successfully exploited
        this vulnerability could execute arbitrary code on the
        computer of the connecting client. An attacker could
        then install programs; view, change, or delete data; or
        create new accounts with full user rights.
        (CVE-2020-0611)
    
      - An elevation of privilege vulnerability exists in
        Microsoft Windows when Windows fails to properly handle
        certain symbolic links. An attacker who successfully
        exploited this vulnerability could potentially set
        certain items to run at a higher level and thereby
        elevate permissions.  (CVE-2020-0635)
    
      - A remote code execution vulnerability exists when
        Internet Explorer improperly accesses objects in memory.
        The vulnerability could corrupt memory in such a way
        that an attacker could execute arbitrary code in the
        context of the current user. An attacker who
        successfully exploited the vulnerability could gain the
        same user rights as the current user.  (CVE-2020-0640)
    
      - An elevation of privilege vulnerability exists in the
        way that the Windows Search Indexer handles objects in
        memory. An attacker who successfully exploited the
        vulnerability could execute code with elevated
        permissions.  (CVE-2020-0613, CVE-2020-0614,
        CVE-2020-0623, CVE-2020-0625, CVE-2020-0626,
        CVE-2020-0627, CVE-2020-0628, CVE-2020-0629,
        CVE-2020-0630, CVE-2020-0631, CVE-2020-0632,
        CVE-2020-0633)
    
      - An elevation of privilege vulnerability exists in
        Windows Media Service that allows file creation in
        arbitrary locations.  (CVE-2020-0641)
    
      - An elevation of privilege vulnerability exists when
        Microsoft Windows implements predictable memory section
        names. An attacker who successfully exploited this
        vulnerability could run arbitrary code as system. An
        attacker could then install programs; view, change, or
        delete data; or create new accounts with full user
        rights.  (CVE-2020-0644)
    
      - A remote code execution vulnerability exists in .NET
        software when the software fails to check the source
        markup of a file. An attacker who successfully exploited
        the vulnerability could run arbitrary code in the
        context of the current user. If the current user is
        logged on with administrative user rights, an attacker
        could take control of the affected system. An attacker
        could then install programs; view, change, or delete
        data; or create new accounts with full user rights.
        (CVE-2020-0605, CVE-2020-0606)
    
      - A security feature bypass vulnerability exists in
        Windows 10 when third party filters are called during a
        password update. Successful exploitation of the
        vulnerability could allow a user to make use of a
        blocked password for their account.  (CVE-2020-0621)
    
      - An information disclosure vulnerability exists when the
        win32k component improperly provides kernel information.
        An attacker who successfully exploited the vulnerability
        could obtain information to further compromise the users
        system.  (CVE-2020-0608)
    
      - An elevation of privilege vulnerability exists when
        Microsoft Cryptographic Services improperly handles
        files. An attacker could exploit the vulnerability to
        overwrite or modify a protected file leading to a
        privilege escalation.  (CVE-2020-0620)
    
      - An elevation of privilege vulnerability exists when the
        Windows Common Log File System (CLFS) driver improperly
        handles objects in memory. An attacker who successfully
        exploited this vulnerability could run processes in an
        elevated context.  (CVE-2020-0634)
    
      - A remote code execution vulnerability exists when the
        Microsoft .NET Framework fails to validate input
        properly. An attacker who successfully exploited this
        vulnerability could take control of an affected system.
        An attacker could then install programs; view, change,
        or delete data; or create new accounts with full user
        rights. Users whose accounts are configured to have
        fewer user rights on the system could be less impacted
        than users who operate with administrative user rights.
        (CVE-2020-0646)
    
      - A denial of service vulnerability exists in Windows
        Remote Desktop Gateway (RD Gateway) when an attacker
        connects to the target system using RDP and sends
        specially crafted requests. An attacker who successfully
        exploited this vulnerability could cause the RD Gateway
        service on the target system to stop responding.
        (CVE-2020-0612)
    
      - An information disclosure vulnerability exists in the
        Windows Common Log File System (CLFS) driver when it
        fails to properly handle objects in memory. An attacker
        who successfully exploited this vulnerability could
        potentially read data that was not intended to be
        disclosed. Note that this vulnerability would not allow
        an attacker to execute code or to elevate their user
        rights directly, but it could be used to obtain
        information that could be used to try to further
        compromise the affected system.  (CVE-2020-0615,
        CVE-2020-0639)
    
      - A spoofing vulnerability exists in the way Windows
        CryptoAPI (Crypt32.dll) validates Elliptic Curve
        Cryptography (ECC) certificates. An attacker could
        exploit the vulnerability by using a spoofed code-
        signing certificate to sign a malicious executable,
        making it appear the file was from a trusted, legitimate
        source. The user would have no way of knowing the file
        was malicious, because the digital signature would
        appear to be from a trusted provider. A successful
        exploit could also allow the attacker to conduct man-in-
        the-middle attacks and decrypt confidential information
        on user connections to the affected software. The
        security update addresses the vulnerability by ensuring
        that Windows CryptoAPI completely validates ECC
        certificates. (CVE-2020-0601)
    
      - An elevation of privilege vulnerability exists in the
        way the Update Notification Manager handles files.
        (CVE-2020-0638)");
      # https://support.microsoft.com/en-us/help/4534273/windows-10-update-kb4534273
      script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?a22c8c16");
      script_set_attribute(attribute:"solution", value:
    "Apply Cumulative Update KB4534273.");
      script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
      script_set_cvss_temporal_vector("CVSS2#E:H/RL:OF/RC:C");
      script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
      script_set_cvss3_temporal_vector("CVSS:3.0/E:H/RL:O/RC:C");
      script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-0646");
    
      script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
      script_set_attribute(attribute:"exploit_available", value:"true");
      script_set_attribute(attribute:"exploited_by_malware", value:"true");
      script_set_attribute(attribute:"metasploit_name", value:'SharePoint Workflows XOML Injection');
      script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");
    
      script_set_attribute(attribute:"vuln_publication_date", value:"2020/01/14");
      script_set_attribute(attribute:"patch_publication_date", value:"2020/01/14");
      script_set_attribute(attribute:"plugin_publication_date", value:"2020/01/14");
    
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:microsoft:windows");
      script_set_attribute(attribute:"stig_severity", value:"I");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_family(english:"Windows : Microsoft Bulletins");
    
      script_copyright(english:"This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
    
      script_dependencies("smb_check_rollup.nasl", "smb_hotfixes.nasl", "ms_bulletin_checks_possible.nasl");
      script_require_keys("SMB/MS_Bulletin_Checks/Possible");
      script_require_ports(139, 445, "Host/patch_management_checks");
    
      exit(0);
    }
    
    include("audit.inc");
    include("smb_hotfixes_fcheck.inc");
    include("smb_hotfixes.inc");
    include("smb_func.inc");
    include("misc_func.inc");
    
    get_kb_item_or_exit("SMB/MS_Bulletin_Checks/Possible");
    
    bulletin = "MS20-01";
    kbs = make_list('4534273');
    
    if (get_kb_item("Host/patch_management_checks")) hotfix_check_3rd_party(bulletin:bulletin, kbs:kbs, severity:SECURITY_HOLE);
    
    get_kb_item_or_exit("SMB/Registry/Enumerated");
    get_kb_item_or_exit("SMB/WindowsVersion", exit_code:1);
    
    if (hotfix_check_sp_range(win10:'0') <= 0) audit(AUDIT_OS_SP_NOT_VULN);
    
    share = hotfix_get_systemdrive(as_share:TRUE, exit_on_fail:TRUE);
    if (!is_accessible_share(share:share)) audit(AUDIT_SHARE_FAIL, share);
    
    if (
      smb_check_rollup(os:"10",
                       sp:0,
                       os_build:"17763",
                       rollup_date:"01_2020",
                       bulletin:bulletin,
                       rollup_kb_list:[4534273])
    )
    {
      replace_kb_item(name:'SMB/Missing/'+bulletin, value:TRUE);
      hotfix_security_hole();
      hotfix_check_fversion_end();
      exit(0);
    }
    else
    {
      hotfix_check_fversion_end();
      audit(AUDIT_HOST_NOT, hotfix_get_audit_report());
    }
    

The Hacker News

idTHN:4D730B0E8FB7A8FA81D69770EF31795C
last seen2020-01-14
modified2020-01-14
published2020-01-14
reporterThe Hacker News
sourcehttps://thehackernews.com/2020/01/warning-quickly-patch-new-critical.html
titleUpdate Windows 10 Immediately to Patch a Flaw Discovered by the NSA