Vulnerabilities > CVE-2018-0809 - Unspecified vulnerability in Microsoft Windows 10 and Windows Server 2016

047910
CVSS 6.9 - MEDIUM
Attack vector
LOCAL
Attack complexity
MEDIUM
Privileges required
NONE
Confidentiality impact
COMPLETE
Integrity impact
COMPLETE
Availability impact
COMPLETE
local
microsoft
nessus
NVD
Published: 2018-02-15
Updated: 2019-10-03

Summary

The Windows kernel in Windows 10, versions 1703 and 1709, and Windows Server, version 1709 allows an elevation of privilege vulnerability due to the way objects are handled in memory, aka "Windows Elevation of Privilege Vulnerability". This CVE is unique from CVE-2018-0742, CVE-2018-0756, CVE-2018-0820 and CVE-2018-0843.

Vulnerable Configurations

Part Description Count
OS
Microsoft
3

Nessus

  • NASL familyWindows : Microsoft Bulletins
    NASL idSMB_NT_MS18_FEB_4074592.NASL
    descriptionThe remote Windows host is missing security update 4074592. It is, therefore, affected by multiple vulnerabilities : - An vulnerability exists within microprocessors utilizing speculative execution and indirect branch prediction, which may allow an attacker with local user access to disclose information via a side-channel analysis. (CVE-2017-5715, CVE-2017-5753, CVE-2017-5754) - 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-2018-0866) - A security feature bypass vulnerability exists in Windows Scripting Host which could allow an attacker to bypass Device Guard. An attacker who successfully exploited this vulnerability could circumvent a User Mode Code Integrity (UMCI) policy on the machine. (CVE-2018-0827) - 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-2018-0757, CVE-2018-0829, CVE-2018-0830) - An information disclosure vulnerability exists when Microsoft Edge improperly handles objects in memory. An attacker who successfully exploited the vulnerability could obtain information to further compromise the users system. (CVE-2018-0763, CVE-2018-0839) - An information disclosure vulnerability exists when VBScript improperly discloses the contents of its memory, which could provide an attacker with information to further compromise the users computer or data. (CVE-2018-0847) - A remote code execution vulnerability exists in StructuredQuery when the software fails to properly handle objects in memory. 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-2018-0825) - A remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Microsoft Edge. 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-2018-0834, CVE-2018-0835, CVE-2018-0836, CVE-2018-0837, CVE-2018-0838, CVE-2018-0856, CVE-2018-0857, CVE-2018-0859, CVE-2018-0860, CVE-2018-0861) - An elevation of privilege vulnerability exists when NTFS improperly handles objects. An attacker who successfully exploited this vulnerability could run processes in an elevated context. (CVE-2018-0822) - An elevation of privilege vulnerability exists when AppContainer improperly implements constrained impersonation. An attacker who successfully exploited this vulnerability could run processes in an elevated context. (CVE-2018-0821) - A remote code execution vulnerability exists when Windows improperly handles objects in memory. An attacker who successfully exploited these vulnerabilities could take control of an affected system. (CVE-2018-0842) - 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-2018-0844, CVE-2018-0846) - An information disclosure vulnerability exists in the Windows kernel that could allow an attacker to retrieve information that could lead to a Kernel Address Space Layout Randomization (ASLR) bypass. An attacker who successfully exploited the vulnerability could retrieve the memory address of a kernel object. (CVE-2018-0832) - 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-2018-0809) - 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-2018-0742, CVE-2018-0756, CVE-2018-0820, CVE-2018-0831) - A security feature bypass vulnerability exists when Microsoft Edge improperly handles requests of different origins. The vulnerability allows Microsoft Edge to bypass Same-Origin Policy (SOP) restrictions, and to allow requests that should otherwise be ignored. An attacker who successfully exploited the vulnerability could force the browser to send data that would otherwise be restricted. (CVE-2018-0771) - A remote code execution vulnerability exists in the way the scripting engine handles objects in memory in Microsoft browsers. 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-2018-0840) - An elevation of privilege vulnerability exists when Storage Services improperly handles objects in memory. An attacker who successfully exploited this vulnerability could run processes in an elevated context. (CVE-2018-0826)
    last seen2020-06-01
    modified2020-06-02
    plugin id106798
    published2018-02-13
    reporterThis script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/106798
    titleKB4074592: Windows 10 Version 1703 February 2018 Security Update (Meltdown)(Spectre)
    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(106798);
  script_version("1.9");
  script_cvs_date("Date: 2019/11/08");

  script_cve_id(
    "CVE-2017-5715",
    "CVE-2017-5753",
    "CVE-2017-5754",
    "CVE-2018-0742",
    "CVE-2018-0756",
    "CVE-2018-0757",
    "CVE-2018-0763",
    "CVE-2018-0771",
    "CVE-2018-0809",
    "CVE-2018-0820",
    "CVE-2018-0821",
    "CVE-2018-0822",
    "CVE-2018-0825",
    "CVE-2018-0826",
    "CVE-2018-0827",
    "CVE-2018-0829",
    "CVE-2018-0830",
    "CVE-2018-0831",
    "CVE-2018-0832",
    "CVE-2018-0834",
    "CVE-2018-0835",
    "CVE-2018-0836",
    "CVE-2018-0837",
    "CVE-2018-0838",
    "CVE-2018-0839",
    "CVE-2018-0840",
    "CVE-2018-0842",
    "CVE-2018-0844",
    "CVE-2018-0846",
    "CVE-2018-0847",
    "CVE-2018-0856",
    "CVE-2018-0857",
    "CVE-2018-0859",
    "CVE-2018-0860",
    "CVE-2018-0861",
    "CVE-2018-0866"
  );
  script_xref(name:"MSKB", value:"4074592");
  script_xref(name:"IAVA", value:"2018-A-0019");
  script_xref(name:"IAVA", value:"2018-A-0020");
  script_xref(name:"MSFT", value:"MS18-4074592");

  script_name(english:"KB4074592: Windows 10 Version 1703 February 2018 Security Update (Meltdown)(Spectre)");
  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 4074592.
It is, therefore, affected by multiple vulnerabilities :

  - An vulnerability exists within microprocessors utilizing
    speculative execution and indirect branch prediction,
    which may allow an attacker with local user access to
    disclose information via a side-channel analysis.
    (CVE-2017-5715, CVE-2017-5753, CVE-2017-5754)

  - 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-2018-0866)

  - A security feature bypass vulnerability exists in
    Windows Scripting Host which could allow an attacker to
    bypass Device Guard. An attacker who successfully
    exploited this vulnerability could circumvent a User
    Mode Code Integrity (UMCI) policy on the machine.
    (CVE-2018-0827)

  - 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-2018-0757, CVE-2018-0829, CVE-2018-0830)

  - An information disclosure vulnerability exists when
    Microsoft Edge improperly handles objects in memory. An
    attacker who successfully exploited the vulnerability
    could obtain information to further compromise the users
    system.  (CVE-2018-0763, CVE-2018-0839)

  - An information disclosure vulnerability exists when
    VBScript improperly discloses the contents of its
    memory, which could provide an attacker with information
    to further compromise the users computer or data.
    (CVE-2018-0847)

  - A remote code execution vulnerability exists in
    StructuredQuery when the software fails to properly
    handle objects in memory. 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-2018-0825)

  - A remote code execution vulnerability exists in the way
    that the scripting engine handles objects in memory in
    Microsoft Edge. 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-2018-0834,
    CVE-2018-0835, CVE-2018-0836, CVE-2018-0837,
    CVE-2018-0838, CVE-2018-0856, CVE-2018-0857,
    CVE-2018-0859, CVE-2018-0860, CVE-2018-0861)

  - An elevation of privilege vulnerability exists when NTFS
    improperly handles objects. An attacker who successfully
    exploited this vulnerability could run processes in an
    elevated context.  (CVE-2018-0822)

  - An elevation of privilege vulnerability exists when
    AppContainer improperly implements constrained
    impersonation. An attacker who successfully exploited
    this vulnerability could run processes in an elevated
    context.  (CVE-2018-0821)

  - A remote code execution vulnerability exists when
    Windows improperly handles objects in memory. An
    attacker who successfully exploited these
    vulnerabilities could take control of an affected
    system.  (CVE-2018-0842)

  - 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-2018-0844, CVE-2018-0846)

  - An information disclosure vulnerability exists in the
    Windows kernel that could allow an attacker to retrieve
    information that could lead to a Kernel Address Space
    Layout Randomization (ASLR) bypass. An attacker who
    successfully exploited the vulnerability could retrieve
    the memory address of a kernel object.  (CVE-2018-0832)

  - 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-2018-0809)

  - 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-2018-0742, CVE-2018-0756, CVE-2018-0820,
    CVE-2018-0831)

  - A security feature bypass vulnerability exists when
    Microsoft Edge improperly handles requests of different
    origins. The vulnerability allows Microsoft Edge to
    bypass Same-Origin Policy (SOP) restrictions, and to
    allow requests that should otherwise be ignored. An
    attacker who successfully exploited the vulnerability
    could force the browser to send data that would
    otherwise be restricted.  (CVE-2018-0771)

  - A remote code execution vulnerability exists in the way
    the scripting engine handles objects in memory in
    Microsoft browsers. 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-2018-0840)

  - An elevation of privilege vulnerability exists when
    Storage Services improperly handles objects in memory.
    An attacker who successfully exploited this
    vulnerability could run processes in an elevated
    context.  (CVE-2018-0826)");
  # https://support.microsoft.com/en-us/help/4074592/windows-10-update-kb4074592
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?66620b53");
  # https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/ADV180002
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?573cb1ef");
  script_set_attribute(attribute:"solution", value:
"Apply Cumulative Update KB4074592.");
  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:H/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:H/PR:N/UI:R/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-2018-0866");

  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:"exploit_framework_canvas", value:"true");
  script_set_attribute(attribute:"canvas_package", value:'CANVAS');

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/02/13");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/02/13");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/02/13");

  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) 2018-2019 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 = "MS18-02";
kbs = make_list('4074592');

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:"15063",
                   rollup_date:"02_2018",
                   bulletin:bulletin,
                   rollup_kb_list:[4074592])
)
{
  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_MS18_FEB_4074588.NASL
    descriptionThe remote Windows host is missing security update 4074588. It is, therefore, affected by multiple vulnerabilities : - 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-2018-0866) - A security feature bypass vulnerability exists in Windows Scripting Host which could allow an attacker to bypass Device Guard. An attacker who successfully exploited this vulnerability could circumvent a User Mode Code Integrity (UMCI) policy on the machine. (CVE-2018-0827) - A remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Microsoft Edge. 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-2018-0834, CVE-2018-0835, CVE-2018-0836, CVE-2018-0837, CVE-2018-0838, CVE-2018-0856, CVE-2018-0857, CVE-2018-0859, CVE-2018-0860) - An information disclosure vulnerability exists when Microsoft Edge improperly handles objects in memory. An attacker who successfully exploited the vulnerability could obtain information to further compromise the users system. (CVE-2018-0763) - An information disclosure vulnerability exists when the Windows kernel fails to properly initialize a memory address. An attacker who successfully exploited this vulnerability could obtain information to further compromise the users system. (CVE-2018-0843) - An information disclosure vulnerability exists in the Windows kernel that could allow an attacker to retrieve information that could lead to a Kernel Address Space Layout Randomization (ASLR) bypass. An attacker who successfully exploited the vulnerability could retrieve the memory address of a kernel object. (CVE-2018-0832) - An information disclosure vulnerability exists when VBScript improperly discloses the contents of its memory, which could provide an attacker with information to further compromise the users computer or data. (CVE-2018-0847) - 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-2018-0757, CVE-2018-0829, CVE-2018-0830) - A remote code execution vulnerability exists in StructuredQuery when the software fails to properly handle objects in memory. 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-2018-0825) - An elevation of privilege vulnerability exists when Storage Services improperly handles objects in memory. An attacker who successfully exploited this vulnerability could run processes in an elevated context. (CVE-2018-0826) - An elevation of privilege vulnerability exists when NTFS improperly handles objects. An attacker who successfully exploited this vulnerability could run processes in an elevated context. (CVE-2018-0822) - An elevation of privilege vulnerability exists when AppContainer improperly implements constrained impersonation. An attacker who successfully exploited this vulnerability could run processes in an elevated context. (CVE-2018-0821) - A remote code execution vulnerability exists when Windows improperly handles objects in memory. An attacker who successfully exploited these vulnerabilities could take control of an affected system. (CVE-2018-0842) - 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-2018-0844, CVE-2018-0846) - An elevation of privilege vulnerability exist when Named Pipe File System improperly handles objects. An attacker who successfully exploited this vulnerability could run processes in an elevated context. (CVE-2018-0823) - 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-2018-0809) - 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-2018-0742, CVE-2018-0756, CVE-2018-0820, CVE-2018-0831) - A remote code execution vulnerability exists in the way the scripting engine handles objects in memory in Microsoft browsers. 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-2018-0840)
    last seen2020-06-01
    modified2020-06-02
    plugin id106795
    published2018-02-13
    reporterThis script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/106795
    titleKB4074588: Windows 10 Version 1709 and Windows Server Version 1709 February 2018 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(106795);
  script_version("1.7");
  script_cvs_date("Date: 2019/04/05 23:25:09");

  script_cve_id(
    "CVE-2018-0742",
    "CVE-2018-0756",
    "CVE-2018-0757",
    "CVE-2018-0763",
    "CVE-2018-0809",
    "CVE-2018-0820",
    "CVE-2018-0821",
    "CVE-2018-0822",
    "CVE-2018-0823",
    "CVE-2018-0825",
    "CVE-2018-0826",
    "CVE-2018-0827",
    "CVE-2018-0829",
    "CVE-2018-0830",
    "CVE-2018-0831",
    "CVE-2018-0832",
    "CVE-2018-0834",
    "CVE-2018-0835",
    "CVE-2018-0836",
    "CVE-2018-0837",
    "CVE-2018-0838",
    "CVE-2018-0840",
    "CVE-2018-0842",
    "CVE-2018-0843",
    "CVE-2018-0844",
    "CVE-2018-0846",
    "CVE-2018-0847",
    "CVE-2018-0856",
    "CVE-2018-0857",
    "CVE-2018-0859",
    "CVE-2018-0860",
    "CVE-2018-0866"
  );
  script_xref(name:"MSKB", value:"4074588");
  script_xref(name:"MSFT", value:"MS18-4074588");

  script_name(english:"KB4074588: Windows 10 Version 1709 and Windows Server Version 1709 February 2018 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 4074588. 
It is, therefore, affected by multiple vulnerabilities :

  - 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-2018-0866)

  - A security feature bypass vulnerability exists in
    Windows Scripting Host which could allow an attacker to
    bypass Device Guard. An attacker who successfully
    exploited this vulnerability could circumvent a User
    Mode Code Integrity (UMCI) policy on the machine.
    (CVE-2018-0827)

  - A remote code execution vulnerability exists in the way
    that the scripting engine handles objects in memory in
    Microsoft Edge. 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-2018-0834,
    CVE-2018-0835, CVE-2018-0836, CVE-2018-0837,
    CVE-2018-0838, CVE-2018-0856, CVE-2018-0857,
    CVE-2018-0859, CVE-2018-0860)

  - An information disclosure vulnerability exists when
    Microsoft Edge improperly handles objects in memory. An
    attacker who successfully exploited the vulnerability
    could obtain information to further compromise the users
    system.  (CVE-2018-0763)

  - An information disclosure vulnerability exists when the
    Windows kernel fails to properly initialize a memory
    address. An attacker who successfully exploited this
    vulnerability could obtain information to further
    compromise the users system.  (CVE-2018-0843)

  - An information disclosure vulnerability exists in the
    Windows kernel that could allow an attacker to retrieve
    information that could lead to a Kernel Address Space
    Layout Randomization (ASLR) bypass. An attacker who
    successfully exploited the vulnerability could retrieve
    the memory address of a kernel object.  (CVE-2018-0832)

  - An information disclosure vulnerability exists when
    VBScript improperly discloses the contents of its
    memory, which could provide an attacker with information
    to further compromise the users computer or data.
    (CVE-2018-0847)

  - 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-2018-0757, CVE-2018-0829, CVE-2018-0830)

  - A remote code execution vulnerability exists in
    StructuredQuery when the software fails to properly
    handle objects in memory. 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-2018-0825)

  - An elevation of privilege vulnerability exists when
    Storage Services improperly handles objects in memory.
    An attacker who successfully exploited this
    vulnerability could run processes in an elevated
    context.  (CVE-2018-0826)

  - An elevation of privilege vulnerability exists when NTFS
    improperly handles objects. An attacker who successfully
    exploited this vulnerability could run processes in an
    elevated context.  (CVE-2018-0822)

  - An elevation of privilege vulnerability exists when
    AppContainer improperly implements constrained
    impersonation. An attacker who successfully exploited
    this vulnerability could run processes in an elevated
    context.  (CVE-2018-0821)

  - A remote code execution vulnerability exists when
    Windows improperly handles objects in memory. An
    attacker who successfully exploited these
    vulnerabilities could take control of an affected
    system.  (CVE-2018-0842)

  - 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-2018-0844, CVE-2018-0846)

  - An elevation of privilege vulnerability exist when Named
    Pipe File System improperly handles objects. An attacker
    who successfully exploited this vulnerability could run
    processes in an elevated context.  (CVE-2018-0823)

  - 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-2018-0809)

  - 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-2018-0742, CVE-2018-0756, CVE-2018-0820,
    CVE-2018-0831)

  - A remote code execution vulnerability exists in the way
    the scripting engine handles objects in memory in
    Microsoft browsers. 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-2018-0840)");
  # https://support.microsoft.com/en-us/help/4074588/windows-10-update-kb4074588
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?13cfb4a5");
  script_set_attribute(attribute:"solution", value:
  "Apply Cumulative Update KB4074588.");
  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:H/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:H/PR:N/UI:R/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:"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:"vuln_publication_date", value:"2018/02/13");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/02/13");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/02/13");

  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) 2018-2019 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 = "MS18-02";
kbs = make_list('4074588');

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:"16299",
                   rollup_date:"02_2018",
                   bulletin:bulletin,
                   rollup_kb_list:[4074588])
)
{
  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());
}

Seebug

bulletinFamilyexploit
descriptionWe have noticed the following code in the win32kfull!xxxImeWindowPosChanged function on Windows 10 version 1709 32-bit (listing from the IDA Pro disassembler): ``` .text:000485A4 ; __try { // __except at loc_F3502 .text:000485A4 mov [ebp+ms_exc.registration.TryLevel], 0 .text:000485AB mov eax, [ecx] .text:000485AD mov edx, ds:__imp__MmUserProbeAddress .text:000485B3 cmp eax, [edx] .text:000485B5 jnb short loc_485B9 .text:000485B7 mov edx, ecx .text:000485B9 .text:000485B9 loc_485B9: .text:000485B9 mov eax, [edx] .text:000485BB mov eax, [eax+8] .text:000485BE mov [ebp+var_24], eax .text:000485C1 mov [ebp+var_3C], eax .text:000485C1 ; } // starts at 485A4 ``` At the start of the code snippet, ECX is set to a user-mode address. This means that the address that is accessed at 0x485BB is fetched from ring-3 twice: first at 0x485AB in order to sanitize it (compare with MmUserProbeAddress), and then at 0x485B9 to actually dereference it. This is a race condition problem known as TOCTTOU (Time of Check to Time of Use), and can allow a malicious program to change the verified address in between the two reads to bypass the security check. Let's observe (in WinDbg) how the bug could be exploited. First, let's set a breakpoint at the first instruction of the relevant code, at win32kfull!xxxImeWindowPosChanged+0x15b: ``` 3: kd> ba e 1 win32kfull!xxxImeWindowPosChanged+15b ``` Soon enough under normal system runtime the breakpoint will be hit. We can see that ECX points into writeable user-mode memory, and contains the pointer to be sanitized and accessed: ``` 3: kd> g Breakpoint 0 hit win32kfull!xxxImeWindowPosChanged+0x15b: a4c386db 8b01 mov eax,dword ptr [ecx] 1: kd> !pte ecx VA 028e4f10 PDE at C06000A0 PTE at C0014720 contains 0000000090045867 contains 80000000135DC867 pfn 90045 ---DA--UWEV pfn 135dc ---DA--UW-V 1: kd> dd ecx 028e4f10 028bb020 00000000 98e09ad1 8c000104 ``` Let's proceed to the next instruction, to have the address at [ECX] loaded into EAX: ``` 1: kd> p win32kfull!xxxImeWindowPosChanged+0x15d: a4c386dd 8b15cc7ee6a4 mov edx,dword ptr [win32kfull!MmUserProbeAddress (a4e67ecc)] ``` Now, we can manually simulate the modification of the address under [ECX] by a concurrent user-mode thread. Let's set it to an invalid 0xbbbbbbbb value: ``` 0: kd> ed ecx bbbbbbbb ``` By single-stepping through the next few instructions, we can see that the pointer sanitization passes through correctly: ``` 1: kd> p win32kfull!xxxImeWindowPosChanged+0x163: a4c386e3 3b02 cmp eax,dword ptr [edx] 1: kd> p win32kfull!xxxImeWindowPosChanged+0x165: a4c386e5 7302 jae win32kfull!xxxImeWindowPosChanged+0x169 (a4c386e9) 1: kd> p win32kfull!xxxImeWindowPosChanged+0x167: a4c386e7 8bd1 mov edx,ecx 1: kd> p win32kfull!xxxImeWindowPosChanged+0x169: a4c386e9 8b02 mov eax,dword ptr [edx] 1: kd> p win32kfull!xxxImeWindowPosChanged+0x16b: a4c386eb 8b4008 mov eax,dword ptr [eax+8] ``` Once the sanitization completes, the address in question is fetched again from user-mode at 0xa01486e9, and now contains the unmapped 0xbbbbbbbb value: ``` 0: kd> ? eax Evaluate expression: -1145324613 = bbbbbbbb ``` When we let the execution continue, a kernel bugcheck is generated as a result of trying to access the invalid pointer: ``` *** Fatal System Error: 0x000000d6 (0xBBBBBBC3,0x00000000,0xA4C386EB,0x00000000) Driver at fault: *** win32kfull.sys - Address A4C386EB base at A4C00000, DateStamp 262da7cd [...] DRIVER_PAGE_FAULT_BEYOND_END_OF_ALLOCATION (d6) N bytes of memory was allocated and more than N bytes are being referenced. This cannot be protected by try-except. When possible, the guilty driver's name (Unicode string) is printed on the bugcheck screen and saved in KiBugCheckDriver. Arguments: Arg1: bbbbbbc3, memory referenced Arg2: 00000000, value 0 = read operation, 1 = write operation Arg3: a4c386eb, if non-zero, the address which referenced memory. Arg4: 00000000, (reserved) [...] TRAP_FRAME: d26c79a4 -- (.trap 0xffffffffd26c79a4) ErrCode = 00000000 eax=bbbbbbbb ebx=b20030d8 ecx=028e4f10 edx=028e4f10 esi=b0ba1038 edi=b20004d0 eip=a4c386eb esp=d26c7a18 ebp=d26c7a80 iopl=0 nv up ei ng nz na po cy cs=0008 ss=0010 ds=0023 es=0023 fs=0030 gs=0000 efl=00010283 win32kfull!xxxImeWindowPosChanged+0x16b: a4c386eb 8b4008 mov eax,dword ptr [eax+8] ds:0023:bbbbbbc3=???????? Resetting default scope LAST_CONTROL_TRANSFER: from 81e4b1d2 to 81db4d24 STACK_TEXT: d26c735c 81e4b1d2 00000003 54f0de0b 00000065 nt!RtlpBreakWithStatusInstruction d26c73b0 81e4ac15 8ba9a340 d26c77cc d26c7840 nt!KiBugCheckDebugBreak+0x1f d26c77a0 81db383a 00000050 bbbbbbc3 00000000 nt!KeBugCheck2+0x78d d26c77c4 81db3771 00000050 bbbbbbc3 00000000 nt!KiBugCheck2+0xc6 d26c77e4 81d2fee8 00000050 bbbbbbc3 00000000 nt!KeBugCheckEx+0x19 d26c7840 81d30efe d26c79a4 bbbbbbc3 d26c78a0 nt!MiSystemFault+0x13c8 d26c7908 81dc831c 00000000 bbbbbbc3 00000000 nt!MmAccessFault+0x83e d26c7908 a4c386eb 00000000 bbbbbbc3 00000000 nt!KiTrap0E+0xec d26c7a80 a4c37b5d 00000000 a53a8510 a5968008 win32kfull!xxxImeWindowPosChanged+0x16b d26c7ab0 a4c36abd 00000000 a53a8510 b2006180 win32kfull!xxxSendChangedMsgs+0xef d26c7b18 a4c364b6 00000097 b2006180 b2006100 win32kfull!xxxEndDeferWindowPosEx+0x349 d26c7b38 a4c36292 00000000 00000000 00000000 win32kfull!xxxSetWindowPosAndBand+0x15e d26c7b7c a4c6356f 00000000 00000000 00000000 win32kfull!xxxSetWindowPos+0x46 d26c7bdc a4c633de 00010000 000100ce 042bf748 win32kfull!xxxShowWindowEx+0x16f d26c7c04 81dc4d17 000100ce 00000000 042bf754 win32kfull!NtUserShowWindow+0x90 d26c7c04 76fc1670 000100ce 00000000 042bf754 nt!KiSystemServicePostCall ``` The same vulnerable construct was also found in the win32kfull!InternalRebuildHwndListForIMEClass function (EAX points into user-mode at the beginning of the snippet): ``` .text:000F43F4 test eax, eax .text:000F43F6 jz loc_4B617 .text:000F43FC mov edx, [eax] .text:000F43FE test edx, edx .text:000F4400 jz loc_4B617 .text:000F4406 mov ecx, ds:__imp__MmUserProbeAddress .text:000F440C cmp edx, [ecx] .text:000F440E jnb short loc_F4412 .text:000F4410 mov ecx, eax .text:000F4412 .text:000F4412 loc_F4412: .text:000F4412 mov eax, [ecx] .text:000F4414 test byte ptr [eax+18h], 10h ``` We have noticed that the bugs were most likely introduced in October 2017, as this is the first version of win32kfull.sys that contains the affected code. Proof-of-concept programs are not provided for these issues, but they have been observed and confirmed at normal system runtime, and are quite evident in the code. Exploitation of the vulnerabilities could allow local authenticated attackers to defeat certain exploit mitigations (kernel ASLR) or read other secrets stored in the kernel address space.
idSSV:97140
last seen2018-02-25
modified2018-02-24
published2018-02-24
reporterRoot
titleWindows Kernel double fetches in win32kfull!xxxImeWindowPosChanged and win32kfull!InternalRebuildHwndListForIMEClass( CVE-2018-0809)

References