CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:C/I:C/A:C
EPSS
Percentile
22.9%
The remote host is running a version of the Windows kernel that is affected by one or more of the following vulnerabilities :
The Win32k.sys kernel-mode driver improperly validates data supplied from user mode to kernel mode.
(CVE-2011-0086)
The Win32k.sys kernel-mode driver insufficiently validates data supplied from user mode to kernel mode.
(CVE-2011-0087)
The Win32k.sys kernel-mode driver does not properly validate data supplied from user mode to kernel mode, resulting in a ‘Window Class Pointer Confusion’ vulnerability. (CVE-2011-0088)
The Win32k.sys kernel-mode driver does not properly validate data supplied from user mode to kernel mode, resulting in a ‘Window Class Improper Pointer Validation’ vulnerability. (CVE-2011-0089)
The Win32k.sys kernel-mode driver does not properly validate data supplied from user mode to kernel mode, resulting in a memory corruption vulnerability.
(CVE-2011-0090)
An attacker with local access to the affected system can exploit these issues to execute arbitrary code in kernel mode and take complete control of the affected system.
#
# (C) Tenable Network Security, Inc.
#
include("compat.inc");
if (description)
{
script_id(51912);
script_version("1.16");
script_cvs_date("Date: 2018/11/15 20:50:30");
script_cve_id(
"CVE-2011-0086",
"CVE-2011-0087",
"CVE-2011-0088",
"CVE-2011-0089",
"CVE-2011-0090"
);
script_bugtraq_id(46141, 46147, 46148, 46149, 46150);
script_xref(name:"MSFT", value:"MS11-012");
script_xref(name:"MSKB", value:"2479628");
script_name(english:"MS11-012: Vulnerabilities in Windows Kernel-Mode Drivers Could Allow Elevation of Privilege (2479628)");
script_summary(english:"Checks version of Win32k.sys");
script_set_attribute(
attribute:"synopsis",
value:"The remote Windows kernel is affected by multiple vulnerabilities."
);
script_set_attribute(
attribute:"description",
value:
"The remote host is running a version of the Windows kernel that is
affected by one or more of the following vulnerabilities :
- The Win32k.sys kernel-mode driver improperly validates
data supplied from user mode to kernel mode.
(CVE-2011-0086)
- The Win32k.sys kernel-mode driver insufficiently
validates data supplied from user mode to kernel mode.
(CVE-2011-0087)
- The Win32k.sys kernel-mode driver does not properly
validate data supplied from user mode to kernel mode,
resulting in a 'Window Class Pointer Confusion'
vulnerability. (CVE-2011-0088)
- The Win32k.sys kernel-mode driver does not properly
validate data supplied from user mode to kernel mode,
resulting in a 'Window Class Improper Pointer
Validation' vulnerability. (CVE-2011-0089)
- The Win32k.sys kernel-mode driver does not properly
validate data supplied from user mode to kernel mode,
resulting in a memory corruption vulnerability.
(CVE-2011-0090)
An attacker with local access to the affected system can exploit these
issues to execute arbitrary code in kernel mode and take complete
control of the affected system."
);
script_set_attribute(attribute:"see_also", value:"https://docs.microsoft.com/en-us/security-updates/SecurityBulletins/2011/ms11-012");
script_set_attribute(
attribute:"solution",
value:
"Microsoft has released a set of patches for Windows XP, 2003, Vista,
2008, 7, and 2008 R2."
);
script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C");
script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"exploit_available", value:"false");
script_set_attribute(attribute:"vuln_publication_date", value:"2011/02/08");
script_set_attribute(attribute:"patch_publication_date", value:"2011/02/08");
script_set_attribute(attribute:"plugin_publication_date", value:"2011/02/08");
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) 2011-2018 Tenable Network Security, Inc.");
script_dependencies("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 = 'MS11-012';
kb = "2479628";
kbs = make_list(kb);
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(xp:'3', win2003:'2', vista:'1,2', win7:'0,1') <= 0) audit(AUDIT_OS_SP_NOT_VULN);
rootfile = hotfix_get_systemroot();
if (!rootfile) exit(1, "Failed to get the system root.");
share = hotfix_path2share(path:rootfile);
if (!is_accessible_share(share:share)) audit(AUDIT_SHARE_FAIL, share);
if (
# Windows 7 / 2008 R2
hotfix_is_vulnerable(os:"6.1", sp:1, file:"Win32k.sys", version:"6.1.7601.21634", min_version:"6.1.7601.20000", dir:"\system32", bulletin:bulletin, kb:kb) ||
hotfix_is_vulnerable(os:"6.1", sp:1, file:"Win32k.sys", version:"6.1.7601.17535", min_version:"6.1.7601.16000", dir:"\system32", bulletin:bulletin, kb:kb) ||
hotfix_is_vulnerable(os:"6.1", sp:0, file:"Win32k.sys", version:"6.1.7600.20873", min_version:"6.1.7600.20000", dir:"\system32", bulletin:bulletin, kb:kb) ||
hotfix_is_vulnerable(os:"6.1", sp:0, file:"Win32k.sys", version:"6.1.7600.16732", min_version:"6.1.7600.16000", dir:"\system32", bulletin:bulletin, kb:kb) ||
# Windows Vista / 2008
hotfix_is_vulnerable(os:"6.0", sp:2, file:"Win32k.sys", version:"6.0.6002.22560", min_version:"6.0.6002.22000", dir:"\system32", bulletin:bulletin, kb:kb) ||
hotfix_is_vulnerable(os:"6.0", sp:2, file:"Win32k.sys", version:"6.0.6002.18365", min_version:"6.0.6002.18000", dir:"\system32", bulletin:bulletin, kb:kb) ||
hotfix_is_vulnerable(os:"6.0", sp:1, file:"Win32k.sys", version:"6.0.6001.22824", min_version:"6.0.6001.22000", dir:"\system32", bulletin:bulletin, kb:kb) ||
hotfix_is_vulnerable(os:"6.0", sp:1, file:"Win32k.sys", version:"6.0.6001.18573", min_version:"6.0.6001.18000", dir:"\system32", bulletin:bulletin, kb:kb) ||
# Windows 2003 / XP 64-bit
hotfix_is_vulnerable(os:"5.2", sp:2, file:"Win32k.sys", version:"5.2.3790.4813", dir:"\system32", bulletin:bulletin, kb:kb) ||
# Windows XP 32-bit
hotfix_is_vulnerable(os:"5.1", sp:3, file:"Win32k.sys", version:"5.1.2600.6064", dir:"\system32", bulletin:bulletin, kb:kb)
)
{
set_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, 'affected');
}
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-0086
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-0087
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-0088
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-0089
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-0090
docs.microsoft.com/en-us/security-updates/SecurityBulletins/2011/ms11-012