Vulnerabilities > CVE-2020-0910 - Improper Input Validation vulnerability in Microsoft products

047910
CVSS 8.4 - HIGH
Attack vector
ADJACENT_NETWORK
Attack complexity
LOW
Privileges required
HIGH
Confidentiality impact
HIGH
Integrity impact
HIGH
Availability impact
HIGH
low complexity
microsoft
CWE-20
nessus
NVD
Published: 2020-04-15
Updated: 2021-07-21

Summary

A remote code execution vulnerability exists when Windows Hyper-V on a host server fails to properly validate input from an authenticated user on a guest operating system, aka 'Windows Hyper-V Remote Code Execution Vulnerability'.

Vulnerable Configurations

Part Description Count
OS
Microsoft
6

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.

Nessus

  • NASL familyWindows : Microsoft Bulletins
    NASL idSMB_NT_MS20_APR_4549949.NASL
    descriptionThe remote Windows host is missing security update 4549949. It is, therefore, affected by multiple vulnerabilities : - An elevation of privilege vulnerability exists when the Windows Update Stack 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-2020-0985, CVE-2020-0996) - An elevation of privilege vulnerability exists when a Windows scheduled task improperly handles file redirections. An attacker who successfully exploited this vulnerability could delete a targeted file they would not have permissions to. (CVE-2020-0936) - An information disclosure vulnerability exists when the Windows kernel improperly handles objects in memory. An attacker who successfully exploited this vulnerability could obtain information to further compromise the users system. (CVE-2020-0821, CVE-2020-1007) - An elevation of privilege vulnerability exists when the Windows WpcDesktopMonSvc improperly manages memory. (CVE-2020-0934) - A remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Internet Explorer. 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-2020-0968) - 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-2020-0699, CVE-2020-0962) - A remote code execution vulnerability exists when the Windows Jet Database Engine improperly handles objects in memory. An attacker who successfully exploited this vulnerability could execute arbitrary code on a victim system. An attacker could exploit this vulnerability by enticing a victim to open a specially crafted file. The update addresses the vulnerability by correcting the way the Windows Jet Database Engine handles objects in memory. (CVE-2020-0889, CVE-2020-0953, CVE-2020-0959, CVE-2020-0960, CVE-2020-0988, CVE-2020-0992, CVE-2020-0994, CVE-2020-0995, CVE-2020-0999, CVE-2020-1008) - An elevation of privilege vulnerability exists when Connected User Experiences and Telemetry Service improperly handles file operations. An attacker who successfully exploited this vulnerability could overwrite files in arbitrary locations with elevated permissions. (CVE-2020-0942) - A remoted code execution vulnerability exists in the way that Microsoft Windows Codecs Library handles objects in memory. An attacker who successfully exploited the vulnerability could execute arbitrary code. Exploitation of the vulnerability requires that a program process a specially crafted image file. The update addresses the vulnerability by correcting how Microsoft Windows Codecs Library handles objects in memory. (CVE-2020-0965) - An elevation of privilege vulnerability exists when Connected User Experiences and Telemetry Service improperly handles file operations. An attacker who successfully exploited this vulnerability could run processes in an elevated context. An attacker could exploit this vulnerability by running a specially crafted application on the victim system. The security update addresses the vulnerability by correcting how the Connected User Experiences and Telemetry Service handles file operations. (CVE-2020-0944, CVE-2020-1029) - An information disclosure vulnerability exists when Media Foundation improperly handles objects in memory. An attacker who successfully exploited this vulnerability could obtain information to further compromise the users system. (CVE-2020-0937, CVE-2020-0945, CVE-2020-0946) - An elevation of privilege vulnerability exists in the way that the Microsoft Store Install Service handles file operations in protected locations. An attacker who successfully exploited the vulnerability could execute code with elevated permissions. (CVE-2020-1009) - A remote code execution vulnerability exists in Microsoft Windows when the Windows Adobe Type Manager Library improperly handles a specially-crafted multi- master font - Adobe Type 1 PostScript format. For all systems except Windows 10, an attacker who successfully exploited the vulnerability could execute code remotely. For systems running Windows 10, an attacker who successfully exploited the vulnerability could execute code in an AppContainer sandbox context with limited privileges and capabilities. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. There are multiple ways an attacker could exploit the vulnerability, such as convincing a user to open a specially crafted document or viewing it in the Windows Preview pane. The update addresses the vulnerability by correcting how the Windows Adobe Type Manager Library handles Type1 fonts. (CVE-2020-0938, CVE-2020-1020) - A remote code execution vulnerability exists when Windows Hyper-V on a host server fails to properly validate input from an authenticated user on a guest operating system. (CVE-2020-0910) - An elevation of privilege vulnerability exists in the way that the Windows Kernel handles objects in memory. An attacker who successfully exploited the vulnerability could execute code with elevated permissions. (CVE-2020-1027) - An elevation of privilege vulnerability exists when the Windows Work Folder Service improperly handles file operations. An attacker who successfully exploited this vulnerability could run processes in an elevated context. An attacker could exploit this vulnerability by running a specially crafted application on the victim system. The update addresses the vulnerability by correcting the way the Windows Work Folder Service handles file operations. (CVE-2020-1094) - An information disclosure vulnerability exists when certain central processing units (CPU) speculatively access memory. An attacker who successfully exploited the vulnerability could read privileged data across trust boundaries. (CVE-2020-0955) - A memory corruption vulnerability exists when Windows Media Foundation improperly handles objects in memory. An attacker who successfully exploited the vulnerability could install programs; view, change, or delete data; or create new accounts with full user rights. There are multiple ways an attacker could exploit the vulnerability, such as by convincing a user to open a specially crafted document, or by convincing a user to visit a malicious webpage. The security update addresses the vulnerability by correcting how Windows Media Foundation handles objects in memory. (CVE-2020-0948, CVE-2020-0949, CVE-2020-0950) - A remote code execution vulnerability exists when the Windows font library improperly handles specially crafted embedded fonts. An attacker who successfully exploited the vulnerability 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-2020-0687) - An elevation of privilege vulnerability exists in the Microsoft Windows Update Client when it does not properly handle privileges. An attacker who successfully exploited this vulnerability could run processes in an elevated context. An attacker could then install programs; view, change or delete data. (CVE-2020-1014) - A denial of service vulnerability exists when Windows improperly handles objects in memory. An attacker who successfully exploited the vulnerability could cause a target system to stop responding. (CVE-2020-0794) - A remote code execution vulnerability exists in the way that Microsoft Graphics Components handle objects in memory. An attacker who successfully exploited the vulnerability could execute arbitrary code on a target system. (CVE-2020-0907) - An elevation of privilege vulnerability exists when the Windows Graphics Component improperly handles objects in memory. An attacker who successfully exploited this vulnerability could run processes in an elevated context. (CVE-2020-1004) - An elevation of privilege vulnerability exists in the way that the User-Mode Power Service (UMPS) handles objects in memory. An attacker who successfully exploited the vulnerability could execute code with elevated permissions. (CVE-2020-1015) - An elevation of privilege vulnerability exists when the Windows Delivery Optimization service improperly handles objects in memory. An attacker who successfully exploited this vulnerability could run arbitrary code with elevated system privileges. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. (CVE-2020-0983) - An elevation of privilege vulnerability exists in the way the Windows Push Notification Service handles objects in memory. An attacker who successfully exploited this vulnerability could run processes in an elevated context. An attacker could then install programs; view, change or delete data. (CVE-2020-0940, CVE-2020-1001, CVE-2020-1006, CVE-2020-1017) - An elevation of privilege vulnerability exists in Windows when the Windows kernel-mode driver 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-2020-0956, CVE-2020-0958) - 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-2020-0982, CVE-2020-0987, CVE-2020-1005) - An information disclosure vulnerability exists when the Windows Push Notification Service improperly handles objects in memory. An attacker who successfully exploited this vulnerability could obtain information to further compromise the users system. An authenticated attacker could exploit this vulnerability by running a specially crafted application. The update addresses the vulnerability by correcting how the Windows Push Notification Service handles objects in memory. (CVE-2020-1016) - A remote code execution vulnerability exists in the way that the VBScript engine handles 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-2020-0895, CVE-2020-0966, CVE-2020-0967) - An elevation of privilege vulnerability exists when Windows Hyper-V on a host server fails to properly handle objects in memory. An attacker who successfully exploited these vulnerabilities could gain elevated privileges on a target operating system. This vulnerability by itself does not allow arbitrary code to be run. However, this vulnerability could be used in conjunction with one or more vulnerabilities (e.g. a remote code execution vulnerability and another elevation of privilege) that could take advantage of the elevated privileges when running. The update addresses the vulnerabilities by correcting how Windows Hyper-V handles objects in memory. (CVE-2020-0917, CVE-2020-0918) - An information disclosure vulnerability exists when the Windows GDI component improperly discloses the contents of its memory. An attacker who successfully exploited the vulnerability could obtain information to further compromise the users system. There are multiple ways an attacker could exploit the vulnerability, such as by convincing a user to open a specially crafted document, or by convincing a user to visit an untrusted webpage. The security update addresses the vulnerability by correcting how the Windows GDI component handles objects in memory. (CVE-2020-0952) - An elevation of privilege vulnerability exists when the Windows kernel 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-2020-0913, CVE-2020-1000, CVE-2020-1003) - An elevation of privilege vulnerability exists when DirectX improperly handles 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-2020-0784, CVE-2020-0888) - A remote code execution vulnerability exists in the way that the Windows Graphics Device Interface (GDI) handles objects in the memory. An attacker who successfully exploited this vulnerability 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-2020-0964) - A denial of service vulnerability exists in Windows DNS when it fails to properly handle queries. An attacker who successfully exploited this vulnerability could cause the DNS service to become nonresponsive. (CVE-2020-0993) - An elevation of privilege vulnerability exists when the Windows System Assessment Tool improperly handles file operations. An attacker who successfully exploited this vulnerability could run processes in an elevated context. An attacker could exploit this vulnerability by running a specially crafted application on the victim system. The update addresses the vulnerability by correcting the way the Windows System Assessment Tool handles file operations. (CVE-2020-1011)
    last seen2020-05-16
    modified2020-04-14
    plugin id135463
    published2020-04-14
    reporterThis script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/135463
    titleKB4549949: Windows 10 Version 1809 and Windows Server 2019 April 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(135463);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/05/15");

  script_cve_id(
    "CVE-2020-0687",
    "CVE-2020-0699",
    "CVE-2020-0784",
    "CVE-2020-0794",
    "CVE-2020-0821",
    "CVE-2020-0888",
    "CVE-2020-0889",
    "CVE-2020-0895",
    "CVE-2020-0907",
    "CVE-2020-0910",
    "CVE-2020-0913",
    "CVE-2020-0917",
    "CVE-2020-0918",
    "CVE-2020-0934",
    "CVE-2020-0936",
    "CVE-2020-0937",
    "CVE-2020-0938",
    "CVE-2020-0940",
    "CVE-2020-0942",
    "CVE-2020-0944",
    "CVE-2020-0945",
    "CVE-2020-0946",
    "CVE-2020-0948",
    "CVE-2020-0949",
    "CVE-2020-0950",
    "CVE-2020-0952",
    "CVE-2020-0953",
    "CVE-2020-0955",
    "CVE-2020-0956",
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    "CVE-2020-0960",
    "CVE-2020-0962",
    "CVE-2020-0964",
    "CVE-2020-0965",
    "CVE-2020-0966",
    "CVE-2020-0967",
    "CVE-2020-0968",
    "CVE-2020-0982",
    "CVE-2020-0983",
    "CVE-2020-0985",
    "CVE-2020-0987",
    "CVE-2020-0988",
    "CVE-2020-0992",
    "CVE-2020-0993",
    "CVE-2020-0994",
    "CVE-2020-0995",
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  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 4549949.
It is, therefore, affected by multiple vulnerabilities :

  - An elevation of privilege vulnerability exists when the
    Windows Update Stack 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-2020-0985, CVE-2020-0996)

  - An elevation of privilege vulnerability exists when a
    Windows scheduled task improperly handles file
    redirections. An attacker who successfully exploited
    this vulnerability could delete a targeted file they
    would not have permissions to.  (CVE-2020-0936)

  - An information disclosure vulnerability exists when the
    Windows kernel improperly handles objects in memory. An
    attacker who successfully exploited this vulnerability
    could obtain information to further compromise the users
    system.  (CVE-2020-0821, CVE-2020-1007)

  - An elevation of privilege vulnerability exists when the
    Windows WpcDesktopMonSvc improperly manages memory.
    (CVE-2020-0934)

  - A remote code execution vulnerability exists in the way
    that the scripting engine handles objects in memory in
    Internet Explorer. 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-2020-0968)

  - 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-2020-0699, CVE-2020-0962)

  - A remote code execution vulnerability exists when the
    Windows Jet Database Engine improperly handles objects
    in memory. An attacker who successfully exploited this
    vulnerability could execute arbitrary code on a victim
    system. An attacker could exploit this vulnerability by
    enticing a victim to open a specially crafted file. The
    update addresses the vulnerability by correcting the way
    the Windows Jet Database Engine handles objects in
    memory. (CVE-2020-0889, CVE-2020-0953, CVE-2020-0959,
    CVE-2020-0960, CVE-2020-0988, CVE-2020-0992,
    CVE-2020-0994, CVE-2020-0995, CVE-2020-0999,
    CVE-2020-1008)

  - An elevation of privilege vulnerability exists when
    Connected User Experiences and Telemetry Service
    improperly handles file operations. An attacker who
    successfully exploited this vulnerability could
    overwrite files in arbitrary locations with elevated
    permissions.  (CVE-2020-0942)

  - A remoted code execution vulnerability exists in the way
    that Microsoft Windows Codecs Library handles objects in
    memory. An attacker who successfully exploited the
    vulnerability could execute arbitrary code. Exploitation
    of the vulnerability requires that a program process a
    specially crafted image file. The update addresses the
    vulnerability by correcting how Microsoft Windows Codecs
    Library handles objects in memory. (CVE-2020-0965)

  - An elevation of privilege vulnerability exists when
    Connected User Experiences and Telemetry Service
    improperly handles file operations. An attacker who
    successfully exploited this vulnerability could run
    processes in an elevated context. An attacker could
    exploit this vulnerability by running a specially
    crafted application on the victim system. The security
    update addresses the vulnerability by correcting how the
    Connected User Experiences and Telemetry Service handles
    file operations. (CVE-2020-0944, CVE-2020-1029)

  - An information disclosure vulnerability exists when
    Media Foundation improperly handles objects in memory.
    An attacker who successfully exploited this
    vulnerability could obtain information to further
    compromise the users system.  (CVE-2020-0937,
    CVE-2020-0945, CVE-2020-0946)

  - An elevation of privilege vulnerability exists in the
    way that the Microsoft Store Install Service handles
    file operations in protected locations. An attacker who
    successfully exploited the vulnerability could execute
    code with elevated permissions.  (CVE-2020-1009)

  - A remote code execution vulnerability exists in
    Microsoft Windows when the Windows Adobe Type Manager
    Library improperly handles a specially-crafted multi-
    master font - Adobe Type 1 PostScript format. For all
    systems except Windows 10, an attacker who successfully
    exploited the vulnerability could execute code remotely.
    For systems running Windows 10, an attacker who
    successfully exploited the vulnerability could execute
    code in an AppContainer sandbox context with limited
    privileges and capabilities. An attacker could then
    install programs; view, change, or delete data; or
    create new accounts with full user rights. There are
    multiple ways an attacker could exploit the
    vulnerability, such as convincing a user to open a
    specially crafted document or viewing it in the Windows
    Preview pane. The update addresses the vulnerability by
    correcting how the Windows Adobe Type Manager Library
    handles Type1 fonts. (CVE-2020-0938, CVE-2020-1020)

  - A remote code execution vulnerability exists when
    Windows Hyper-V on a host server fails to properly
    validate input from an authenticated user on a guest
    operating system.  (CVE-2020-0910)

  - An elevation of privilege vulnerability exists in the
    way that the Windows Kernel handles objects in memory.
    An attacker who successfully exploited the vulnerability
    could execute code with elevated permissions.
    (CVE-2020-1027)

  - An elevation of privilege vulnerability exists when the
    Windows Work Folder Service improperly handles file
    operations. An attacker who successfully exploited this
    vulnerability could run processes in an elevated
    context. An attacker could exploit this vulnerability by
    running a specially crafted application on the victim
    system. The update addresses the vulnerability by
    correcting the way the Windows Work Folder Service
    handles file operations. (CVE-2020-1094)

  - An information disclosure vulnerability exists when
    certain central processing units (CPU) speculatively
    access memory. An attacker who successfully exploited
    the vulnerability could read privileged data across
    trust boundaries.  (CVE-2020-0955)

  - A memory corruption vulnerability exists when Windows
    Media Foundation improperly handles objects in memory.
    An attacker who successfully exploited the vulnerability
    could install programs; view, change, or delete data; or
    create new accounts with full user rights. There are
    multiple ways an attacker could exploit the
    vulnerability, such as by convincing a user to open a
    specially crafted document, or by convincing a user to
    visit a malicious webpage. The security update addresses
    the vulnerability by correcting how Windows Media
    Foundation handles objects in memory. (CVE-2020-0948,
    CVE-2020-0949, CVE-2020-0950)

  - A remote code execution vulnerability exists when the
    Windows font library improperly handles specially
    crafted embedded fonts. An attacker who successfully
    exploited the vulnerability 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-2020-0687)

  - An elevation of privilege vulnerability exists in the
    Microsoft Windows Update Client when it does not
    properly handle privileges. An attacker who successfully
    exploited this vulnerability could run processes in an
    elevated context. An attacker could then install
    programs; view, change or delete data.  (CVE-2020-1014)

  - A denial of service vulnerability exists when Windows
    improperly handles objects in memory. An attacker who
    successfully exploited the vulnerability could cause a
    target system to stop responding.  (CVE-2020-0794)

  - A remote code execution vulnerability exists in the way
    that Microsoft Graphics Components handle objects in
    memory. An attacker who successfully exploited the
    vulnerability could execute arbitrary code on a target
    system.  (CVE-2020-0907)

  - An elevation of privilege vulnerability exists when the
    Windows Graphics Component improperly handles objects in
    memory. An attacker who successfully exploited this
    vulnerability could run processes in an elevated
    context.  (CVE-2020-1004)

  - An elevation of privilege vulnerability exists in the
    way that the User-Mode Power Service (UMPS) handles
    objects in memory. An attacker who successfully
    exploited the vulnerability could execute code with
    elevated permissions.  (CVE-2020-1015)

  - An elevation of privilege vulnerability exists when the
    Windows Delivery Optimization service improperly handles
    objects in memory. An attacker who successfully
    exploited this vulnerability could run arbitrary code
    with elevated system privileges. An attacker could then
    install programs; view, change, or delete data; or
    create new accounts with full user rights.
    (CVE-2020-0983)

  - An elevation of privilege vulnerability exists in the
    way the Windows Push Notification Service handles
    objects in memory. An attacker who successfully
    exploited this vulnerability could run processes in an
    elevated context. An attacker could then install
    programs; view, change or delete data.  (CVE-2020-0940,
    CVE-2020-1001, CVE-2020-1006, CVE-2020-1017)

  - An elevation of privilege vulnerability exists in
    Windows when the Windows kernel-mode driver 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-2020-0956, CVE-2020-0958)

  - 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-2020-0982,
    CVE-2020-0987, CVE-2020-1005)

  - An information disclosure vulnerability exists when the
    Windows Push Notification Service improperly handles
    objects in memory. An attacker who successfully
    exploited this vulnerability could obtain information to
    further compromise the users system. An authenticated
    attacker could exploit this vulnerability by running a
    specially crafted application. The update addresses the
    vulnerability by correcting how the Windows Push
    Notification Service handles objects in memory.
    (CVE-2020-1016)

  - A remote code execution vulnerability exists in the way
    that the VBScript engine handles 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-2020-0895, CVE-2020-0966,
    CVE-2020-0967)

  - An elevation of privilege vulnerability exists when
    Windows Hyper-V on a host server fails to properly
    handle objects in memory. An attacker who successfully
    exploited these vulnerabilities could gain elevated
    privileges on a target operating system. This
    vulnerability by itself does not allow arbitrary code to
    be run. However, this vulnerability could be used in
    conjunction with one or more vulnerabilities (e.g. a
    remote code execution vulnerability and another
    elevation of privilege) that could take advantage of the
    elevated privileges when running. The update addresses
    the vulnerabilities by correcting how Windows Hyper-V
    handles objects in memory. (CVE-2020-0917,
    CVE-2020-0918)

  - An information disclosure vulnerability exists when the
    Windows GDI component improperly discloses the contents
    of its memory. An attacker who successfully exploited
    the vulnerability could obtain information to further
    compromise the users system. There are multiple ways an
    attacker could exploit the vulnerability, such as by
    convincing a user to open a specially crafted document,
    or by convincing a user to visit an untrusted webpage.
    The security update addresses the vulnerability by
    correcting how the Windows GDI component handles objects
    in memory. (CVE-2020-0952)

  - An elevation of privilege vulnerability exists when the
    Windows kernel 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-2020-0913, CVE-2020-1000, CVE-2020-1003)

  - An elevation of privilege vulnerability exists when
    DirectX improperly handles 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-2020-0784, CVE-2020-0888)

  - A remote code execution vulnerability exists in the way
    that the Windows Graphics Device Interface (GDI) handles
    objects in the memory. An attacker who successfully
    exploited this vulnerability 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-2020-0964)

  - A denial of service vulnerability exists in Windows DNS
    when it fails to properly handle queries. An attacker
    who successfully exploited this vulnerability could
    cause the DNS service to become nonresponsive.
    (CVE-2020-0993)

  - An elevation of privilege vulnerability exists when the
    Windows System Assessment Tool improperly handles file
    operations. An attacker who successfully exploited this
    vulnerability could run processes in an elevated
    context. An attacker could exploit this vulnerability by
    running a specially crafted application on the victim
    system. The update addresses the vulnerability by
    correcting the way the Windows System Assessment Tool
    handles file operations. (CVE-2020-1011)");
  # https://support.microsoft.com/en-us/help/4549949/windows-10-update-kb4549949
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?3387c2f7");
  script_set_attribute(attribute:"solution", value:
"Apply Cumulative Update KB4549949.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-0992");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/04/14");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/04/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/04/14");

  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 = "MS20-04";
kbs = make_list('4549949');

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:"04_2020",
                   bulletin:bulletin,
                   rollup_kb_list:[4549949])
)
{
  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_APR_4549951.NASL
    descriptionThe remote Windows host is missing security update 4549951. It is, therefore, affected by multiple vulnerabilities : - An elevation of privilege vulnerability exists when the Windows Update Stack 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-2020-0985, CVE-2020-0996) - An elevation of privilege vulnerability exists when a Windows scheduled task improperly handles file redirections. An attacker who successfully exploited this vulnerability could delete a targeted file they would not have permissions to. (CVE-2020-0936) - An information disclosure vulnerability exists when the Windows kernel improperly handles objects in memory. An attacker who successfully exploited this vulnerability could obtain information to further compromise the users system. (CVE-2020-0821, CVE-2020-1007) - An elevation of privilege vulnerability exists when the Windows WpcDesktopMonSvc improperly manages memory. (CVE-2020-0934) - A remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Internet Explorer. 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-2020-0968) - 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-2020-0699, CVE-2020-0962) - A remote code execution vulnerability exists when the Windows Jet Database Engine improperly handles objects in memory. An attacker who successfully exploited this vulnerability could execute arbitrary code on a victim system. An attacker could exploit this vulnerability by enticing a victim to open a specially crafted file. The update addresses the vulnerability by correcting the way the Windows Jet Database Engine handles objects in memory. (CVE-2020-0889, CVE-2020-0953, CVE-2020-0959, CVE-2020-0960, CVE-2020-0988, CVE-2020-0992, CVE-2020-0994, CVE-2020-0995, CVE-2020-0999, CVE-2020-1008) - A remoted code execution vulnerability exists in the way that Microsoft Windows Codecs Library handles objects in memory. An attacker who successfully exploited the vulnerability could execute arbitrary code. Exploitation of the vulnerability requires that a program process a specially crafted image file. The update addresses the vulnerability by correcting how Microsoft Windows Codecs Library handles objects in memory. (CVE-2020-0965) - An elevation of privilege vulnerability exists when Connected User Experiences and Telemetry Service improperly handles file operations. An attacker who successfully exploited this vulnerability could run processes in an elevated context. An attacker could exploit this vulnerability by running a specially crafted application on the victim system. The security update addresses the vulnerability by correcting how the Connected User Experiences and Telemetry Service handles file operations. (CVE-2020-0944, CVE-2020-1029) - An elevation of privilege vulnerability exists in the way that the Microsoft Store Install Service handles file operations in protected locations. An attacker who successfully exploited the vulnerability could execute code with elevated permissions. (CVE-2020-1009) - A remote code execution vulnerability exists in Microsoft Windows when the Windows Adobe Type Manager Library improperly handles a specially-crafted multi- master font - Adobe Type 1 PostScript format. For all systems except Windows 10, an attacker who successfully exploited the vulnerability could execute code remotely. For systems running Windows 10, an attacker who successfully exploited the vulnerability could execute code in an AppContainer sandbox context with limited privileges and capabilities. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. There are multiple ways an attacker could exploit the vulnerability, such as convincing a user to open a specially crafted document or viewing it in the Windows Preview pane. The update addresses the vulnerability by correcting how the Windows Adobe Type Manager Library handles Type1 fonts. (CVE-2020-0938, CVE-2020-1020) - A memory corruption vulnerability exists when Windows Media Foundation improperly handles objects in memory. An attacker who successfully exploited the vulnerability could install programs; view, change, or delete data; or create new accounts with full user rights. There are multiple ways an attacker could exploit the vulnerability, such as by convincing a user to open a specially crafted document, or by convincing a user to visit a malicious webpage. The security update addresses the vulnerability by correcting how Windows Media Foundation handles objects in memory. (CVE-2020-0948, CVE-2020-0949, CVE-2020-0950) - An information disclosure vulnerability exists when Media Foundation improperly handles objects in memory. An attacker who successfully exploited this vulnerability could obtain information to further compromise the users system. (CVE-2020-0937, CVE-2020-0939, CVE-2020-0945, CVE-2020-0946, CVE-2020-0947) - A remote code execution vulnerability exists when Windows Hyper-V on a host server fails to properly validate input from an authenticated user on a guest operating system. (CVE-2020-0910) - An elevation of privilege vulnerability exists in the way that the Windows Kernel handles objects in memory. An attacker who successfully exploited the vulnerability could execute code with elevated permissions. (CVE-2020-1027) - A security feature bypass vulnerability exists when Windows fails to properly handle token relationships. An attacker who successfully exploited the vulnerability could allow an application with a certain integrity level to execute code at a different integrity level, leading to a sandbox escape. The update addresses the vulnerability by correcting how Windows handles token relationships (CVE-2020-0981) - An elevation of privilege vulnerability exists when the Windows Work Folder Service improperly handles file operations. An attacker who successfully exploited this vulnerability could run processes in an elevated context. An attacker could exploit this vulnerability by running a specially crafted application on the victim system. The update addresses the vulnerability by correcting the way the Windows Work Folder Service handles file operations. (CVE-2020-1094) - An information disclosure vulnerability exists when certain central processing units (CPU) speculatively access memory. An attacker who successfully exploited the vulnerability could read privileged data across trust boundaries. (CVE-2020-0955) - An elevation of privilege vulnerability exists when Connected User Experiences and Telemetry Service improperly handles file operations. An attacker who successfully exploited this vulnerability could overwrite files in arbitrary locations with elevated permissions. (CVE-2020-0942) - A remote code execution vulnerability exists when the Windows font library improperly handles specially crafted embedded fonts. An attacker who successfully exploited the vulnerability 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-2020-0687) - An elevation of privilege vulnerability exists in the Microsoft Windows Update Client when it does not properly handle privileges. An attacker who successfully exploited this vulnerability could run processes in an elevated context. An attacker could then install programs; view, change or delete data. (CVE-2020-1014) - A denial of service vulnerability exists when Windows improperly handles objects in memory. An attacker who successfully exploited the vulnerability could cause a target system to stop responding. (CVE-2020-0794) - A remote code execution vulnerability exists in the way that Microsoft Graphics Components handle objects in memory. An attacker who successfully exploited the vulnerability could execute arbitrary code on a target system. (CVE-2020-0907) - An elevation of privilege vulnerability exists when the Windows Graphics Component improperly handles objects in memory. An attacker who successfully exploited this vulnerability could run processes in an elevated context. (CVE-2020-1004) - An elevation of privilege vulnerability exists in the way that the User-Mode Power Service (UMPS) handles objects in memory. An attacker who successfully exploited the vulnerability could execute code with elevated permissions. (CVE-2020-1015) - An elevation of privilege vulnerability exists when the Windows Delivery Optimization service improperly handles objects in memory. An attacker who successfully exploited this vulnerability could run arbitrary code with elevated system privileges. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. (CVE-2020-0983) - An elevation of privilege vulnerability exists in the way the Windows Push Notification Service handles objects in memory. An attacker who successfully exploited this vulnerability could run processes in an elevated context. An attacker could then install programs; view, change or delete data. (CVE-2020-0940, CVE-2020-1001, CVE-2020-1006, CVE-2020-1017) - An elevation of privilege vulnerability exists in Windows when the Windows kernel-mode driver 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-2020-0956, CVE-2020-0958) - 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-2020-0982, CVE-2020-0987, CVE-2020-1005) - An information disclosure vulnerability exists when the Windows Push Notification Service improperly handles objects in memory. An attacker who successfully exploited this vulnerability could obtain information to further compromise the users system. An authenticated attacker could exploit this vulnerability by running a specially crafted application. The update addresses the vulnerability by correcting how the Windows Push Notification Service handles objects in memory. (CVE-2020-1016) - A remote code execution vulnerability exists in the way that the VBScript engine handles 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-2020-0895, CVE-2020-0966, CVE-2020-0967) - An elevation of privilege vulnerability exists when Windows Hyper-V on a host server fails to properly handle objects in memory. An attacker who successfully exploited these vulnerabilities could gain elevated privileges on a target operating system. This vulnerability by itself does not allow arbitrary code to be run. However, this vulnerability could be used in conjunction with one or more vulnerabilities (e.g. a remote code execution vulnerability and another elevation of privilege) that could take advantage of the elevated privileges when running. The update addresses the vulnerabilities by correcting how Windows Hyper-V handles objects in memory. (CVE-2020-0917, CVE-2020-0918) - An information disclosure vulnerability exists when the Windows GDI component improperly discloses the contents of its memory. An attacker who successfully exploited the vulnerability could obtain information to further compromise the users system. There are multiple ways an attacker could exploit the vulnerability, such as by convincing a user to open a specially crafted document, or by convincing a user to visit an untrusted webpage. The security update addresses the vulnerability by correcting how the Windows GDI component handles objects in memory. (CVE-2020-0952) - An elevation of privilege vulnerability exists when the Windows kernel 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-2020-0913, CVE-2020-1000, CVE-2020-1003) - An elevation of privilege vulnerability exists when DirectX improperly handles 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-2020-0784, CVE-2020-0888) - A remote code execution vulnerability exists in the way that the Windows Graphics Device Interface (GDI) handles objects in the memory. An attacker who successfully exploited this vulnerability 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-2020-0964) - A denial of service vulnerability exists in Windows DNS when it fails to properly handle queries. An attacker who successfully exploited this vulnerability could cause the DNS service to become nonresponsive. (CVE-2020-0993) - An elevation of privilege vulnerability exists when the Windows System Assessment Tool improperly handles file operations. An attacker who successfully exploited this vulnerability could run processes in an elevated context. An attacker could exploit this vulnerability by running a specially crafted application on the victim system. The update addresses the vulnerability by correcting the way the Windows System Assessment Tool handles file operations. (CVE-2020-1011)
    last seen2020-05-16
    modified2020-04-14
    plugin id135464
    published2020-04-14
    reporterThis script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/135464
    titleKB4549951: Windows 10 Version 1903 and Windows 10 Version 1909 April 2020 Security Update

The Hacker News

idTHN:D8AAE3E21499FA77C4C1B73C1DDA01E1
last seen2020-04-15
modified2020-04-15
published2020-04-14
reporterThe Hacker News
sourcehttps://thehackernews.com/2020/04/windows-patch-update.html
titleMicrosoft Issues Patches for 3 Bugs Exploited as Zero-Day in the Wild

References