Vulnerabilities > CVE-2012-4786 - Code Injection vulnerability in Microsoft products

047910
CVSS 10.0 - CRITICAL
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
COMPLETE
Integrity impact
COMPLETE
Availability impact
COMPLETE
network
low complexity
microsoft
CWE-94
critical
nessus

Summary

The kernel-mode drivers in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2, R2, and R2 SP1, Windows 7 Gold and SP1, Windows 8, Windows Server 2012, and Windows RT allow remote attackers to execute arbitrary code via a crafted TrueType Font (TTF) file, aka "TrueType Font Parsing Vulnerability."

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Leverage Executable Code in Non-Executable Files
    An attack of this type exploits a system's trust in configuration and resource files, when the executable loads the resource (such as an image file or configuration file) the attacker has modified the file to either execute malicious code directly or manipulate the target process (e.g. application server) to execute based on the malicious configuration parameters. Since systems are increasingly interrelated mashing up resources from local and remote sources the possibility of this attack occurring is high. The attack can be directed at a client system, such as causing buffer overrun through loading seemingly benign image files, as in Microsoft Security Bulletin MS04-028 where specially crafted JPEG files could cause a buffer overrun once loaded into the browser. Another example targets clients reading pdf files. In this case the attacker simply appends javascript to the end of a legitimate url for a pdf (http://www.gnucitizen.org/blog/danger-danger-danger/) http://path/to/pdf/file.pdf#whatever_name_you_want=javascript:your_code_here The client assumes that they are reading a pdf, but the attacker has modified the resource and loaded executable javascript into the client's browser process. The attack can also target server processes. The attacker edits the resource or configuration file, for example a web.xml file used to configure security permissions for a J2EE app server, adding role name "public" grants all users with the public role the ability to use the administration functionality. The server trusts its configuration file to be correct, but when they are manipulated, the attacker gains full control.
  • Manipulating User-Controlled Variables
    This attack targets user controlled variables (DEBUG=1, PHP Globals, and So Forth). An attacker can override environment variables leveraging user-supplied, untrusted query variables directly used on the application server without any data sanitization. In extreme cases, the attacker can change variables controlling the business logic of the application. For instance, in languages like PHP, a number of poorly set default configurations may allow the user to override variables.

Msbulletin

bulletin_idMS12-078
bulletin_url
date2012-12-11T00:00:00
impactRemote Code Execution
knowledgebase_id2783534
knowledgebase_url
severityCritical
titleVulnerabilities in Windows Kernel-Mode Drivers Could Allow Remote Code Execution

Nessus

NASL familyWindows : Microsoft Bulletins
NASL idSMB_NT_MS12-078.NASL
descriptionThe remote Windows host is affected by the following remote code execution vulnerabilities : - An OpenType Font parsing vulnerability exists due to the way OpenType font files are handled. (CVE-2012-2556) - A TrueType Font parsing vulnerability exists due to the way TrueType font files are handled.(CVE-2012-4786)
last seen2020-06-01
modified2020-06-02
plugin id63225
published2012-12-11
reporterThis script is Copyright (C) 2012-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
sourcehttps://www.tenable.com/plugins/nessus/63225
titleMS12-078: Vulnerability in Windows Kernel-Mode Drivers Could Allow Remote Code Execution (2783534)
code
#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(63225);
  script_version("1.14");
  script_cvs_date("Date: 2019/12/04");

  script_cve_id("CVE-2012-2556", "CVE-2012-4786");
  script_bugtraq_id(56841, 56842);
  script_xref(name:"MSFT", value:"MS12-078");
  script_xref(name:"MSKB", value:"2753842");
  script_xref(name:"MSKB", value:"2779030");

  script_name(english:"MS12-078: Vulnerability in Windows Kernel-Mode Drivers Could Allow Remote Code Execution (2783534)");
  script_summary(english:"Checks version of win32k.sys and atmfd.dll");

  script_set_attribute(attribute:"synopsis", value:
"The remote Windows host is affected by remote code execution
vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The remote Windows host is affected by the following remote code
execution vulnerabilities :

  - An OpenType Font parsing vulnerability exists due to
    the way OpenType font files are handled. (CVE-2012-2556)

  - A TrueType Font parsing vulnerability exists due to
    the way TrueType font files are handled.(CVE-2012-4786)");
  script_set_attribute(attribute:"see_also", value:"https://docs.microsoft.com/en-us/security-updates/SecurityBulletins/2012/ms12-078");
  script_set_attribute(attribute:"solution", value:
"Microsoft has released a set of patches for Windows XP, 2003, Vista,
2008, 7, 2008 R2, 8, and 2012.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:H/RL:OF/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2012-4786");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploit_framework_core", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2012/12/11");
  script_set_attribute(attribute:"patch_publication_date", value:"2012/12/11");
  script_set_attribute(attribute:"plugin_publication_date", value:"2012/12/11");

  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) 2012-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");

  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_func.inc");
include("smb_hotfixes.inc");
include("smb_hotfixes_fcheck.inc");
include("misc_func.inc");

get_kb_item_or_exit('SMB/MS_Bulletin_Checks/Possible');

bulletin = 'MS12-078';

kbs = make_list("2753842", "2779030");
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:'2', win7:'0,1', win8:'0') <= 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);

vuln = 0;

# Kernel Drivers
kb = "2779030";
if (
  # Windows 8 / 2012
  hotfix_is_vulnerable(os:"6.2", sp:0, file:"Win32k.sys", version:"6.2.9200.16453", min_version:"6.2.9200.16000", dir:"\system32", bulletin:bulletin, kb:kb) ||
  hotfix_is_vulnerable(os:"6.2", sp:0, file:"Win32k.sys", version:"6.2.9200.20557", min_version:"6.2.9200.20000", dir:"\system32", bulletin:bulletin, kb:kb) ||

  # Windows 7 / 2008 R2
  hotfix_is_vulnerable(os:"6.1", sp:0, file:"Win32k.sys", version:"6.1.7600.17174", min_version:"6.1.7600.16000", dir:"\system32", bulletin:bulletin, kb:kb) ||
  hotfix_is_vulnerable(os:"6.1", sp:0, file:"Win32k.sys", version:"6.1.7600.21379", min_version:"6.1.7600.20000", dir:"\system32", bulletin:bulletin, kb:kb) ||
  hotfix_is_vulnerable(os:"6.1", sp:1, file:"Win32k.sys", version:"6.1.7601.18009", min_version:"6.1.7601.17000", dir:"\system32", bulletin:bulletin, kb:kb) ||
  hotfix_is_vulnerable(os:"6.1", sp:1, file:"Win32k.sys", version:"6.1.7601.22171", min_version:"6.1.7601.21000", dir:"\system32", bulletin:bulletin, kb:kb) ||

  # Windows Vista / 2008
  hotfix_is_vulnerable(os:"6.0", sp:2, file:"Win32k.sys", version:"6.0.6002.18733", min_version:"6.0.6002.18000", dir:"\system32", bulletin:bulletin, kb:kb) ||
  hotfix_is_vulnerable(os:"6.0", sp:2, file:"Win32k.sys", version:"6.0.6002.22977", min_version:"6.0.6002.22000", dir:"\system32", bulletin:bulletin, kb:kb) ||

  # Windows 2003 / XP 64-bit
  hotfix_is_vulnerable(os:"5.2", sp:2, file:"Win32k.sys", version:"5.2.3790.5094", dir:"\system32", bulletin:bulletin, kb:kb) ||

  # Windows XP 32-bit
  hotfix_is_vulnerable(os:"5.1", sp:3, file:"Win32k.sys", version:"5.1.2600.6322", dir:"\system32", bulletin:bulletin, kb:kb)
) vuln++;

# OpenType Compact Font Format
kb = "2753842";
if (
  # Windows 8 / 2012
  hotfix_is_vulnerable(os:"6.2", file:"Atmfd.dll", version:"5.1.2.236", dir:"\system32", bulletin:bulletin, kb:kb) ||
  # Windows 7 / 2008 R2
  hotfix_is_vulnerable(os:"6.1", file:"Atmfd.dll", version:"5.1.2.237", dir:"\system32", bulletin:bulletin, kb:kb) ||

  # Windows Vista / 2008
  hotfix_is_vulnerable(os:"6.0", sp:2, file:"Atmfd.dll", version:"5.1.2.235", dir:"\system32", bulletin:bulletin, kb:kb) ||

  # Windows 2003 / XP 64-bit
  hotfix_is_vulnerable(os:"5.2", sp:2, file:"Atmfd.dll", version:"5.2.2.235", dir:"\system32", bulletin:bulletin, kb:kb) ||

  # Windows XP 32-bit
  hotfix_is_vulnerable(os:"5.1", sp:3, file:"Atmfd.dll", version:"5.1.2.235", dir:"\system32", bulletin:bulletin, kb:kb)
) vuln++;

if (vuln)
{
  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');
}

Oval

accepted2013-05-06T04:01:42.031-04:00
classvulnerability
contributors
  • nameSecPod Team
    organizationSecPod Technologies
  • namePooja Shetty
    organizationSecPod Technologies
  • namePradeep R B
    organizationSecPod Technologies
  • nameSharath S
    organizationSecPod Technologies
definition_extensions
  • commentMicrosoft Windows XP (x86) SP3 is installed
    ovaloval:org.mitre.oval:def:5631
  • commentMicrosoft Windows XP x64 Edition SP2 is installed
    ovaloval:org.mitre.oval:def:4193
  • commentMicrosoft Windows Server 2003 SP2 (x86) is installed
    ovaloval:org.mitre.oval:def:1935
  • commentMicrosoft Windows Server 2003 SP2 (x64) is installed
    ovaloval:org.mitre.oval:def:2161
  • commentMicrosoft Windows Server 2003 (ia64) SP2 is installed
    ovaloval:org.mitre.oval:def:1442
  • commentMicrosoft Windows Vista (32-bit) Service Pack 2 is installed
    ovaloval:org.mitre.oval:def:6124
  • commentMicrosoft Windows Vista x64 Edition Service Pack 2 is installed
    ovaloval:org.mitre.oval:def:5594
  • commentMicrosoft Windows Server 2008 (32-bit) Service Pack 2 is installed
    ovaloval:org.mitre.oval:def:5653
  • commentMicrosoft Windows Server 2008 x64 Edition Service Pack 2 is installed
    ovaloval:org.mitre.oval:def:6216
  • commentMicrosoft Windows Server 2008 Itanium-Based Edition Service Pack 2 is installed
    ovaloval:org.mitre.oval:def:6150
  • commentMicrosoft Windows 7 is installed
    ovaloval:org.mitre.oval:def:12541
  • commentMicrosoft Windows Server 2008 R2 x64 Edition is installed
    ovaloval:org.mitre.oval:def:6438
  • commentMicrosoft Windows Server 2008 R2 Itanium-Based Edition is installed
    ovaloval:org.mitre.oval:def:5954
  • commentMicrosoft Windows 7 (32-bit) Service Pack 1 is installed
    ovaloval:org.mitre.oval:def:12292
  • commentMicrosoft Windows Server 2008 R2 x64 Service Pack 1 is installed
    ovaloval:org.mitre.oval:def:12567
  • commentMicrosoft Windows Server 2008 R2 Itanium-Based Edition Service Pack 1 is installed
    ovaloval:org.mitre.oval:def:12583
  • commentMicrosoft Windows 8 is installed
    ovaloval:org.mitre.oval:def:15732
  • commentMicrosoft Windows Server 2012 is installed
    ovaloval:org.mitre.oval:def:16359
descriptionThe kernel-mode drivers in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2, R2, and R2 SP1, Windows 7 Gold and SP1, Windows 8, Windows Server 2012, and Windows RT allow remote attackers to execute arbitrary code via a crafted TrueType Font (TTF) file, aka "TrueType Font Parsing Vulnerability."
familywindows
idoval:org.mitre.oval:def:15845
statusaccepted
submitted2012-12-12T10:50:40
titleTrueType Font Parsing Vulnerability - MS12-078
version76

Seebug

bulletinFamilyexploit
descriptionBUGTRAQ ID: 56842 CVE(CAN) ID: CVE-2012-4786 Microsoft Windows是Microsoft开发的Windows是目前世界上用户最多、并且兼容性最强的操作系统。 Microsoft Windows未正确处理TrueType Font (TTF)文件而存在安全漏洞。通过诱使用户浏览恶意网站或打开恶意文件,未经身份验证的远程攻击者可利用此漏洞在内核态中执行任意代码。 0 Microsoft Windows RT Microsoft Windows 8 Microsoft Windows 7 Microsoft Windows XP Professional Microsoft Windows XP Home Edition Microsoft Windows Vista Microsoft Windows Storage Server 2003 Microsoft Windows Server 2008 Microsoft Windows Server 2003 Web Edition Microsoft Windows Server 2003 Standard Edition Microsoft Windows Server 2003 Enterprise Editi Microsoft Windows Server 2003 Datacenter Editi 临时解决方法: * 禁用WebClient服务。 * 在防火墙禁用TCP端口139和445 * 在windows资源管理器内禁用Preview和Details面板 细节请参考微软官方公告 http://technet.microsoft.com/zh-cn/security/bulletin/ms12-078 厂商补丁: Microsoft --------- Microsoft已经为此发布了一个安全公告(MS12-078)以及相应补丁: MS12-078:Vulnerabilities in Windows Kernel-Mode Drivers Could Allow Remote Code Execution (2783534) 链接: http://www.microsoft.com/technet/security/bulletin/MS12-078.mspx 补丁下载: http://www.microsoft.com/en-us/download/search.aspx?q=KB2779030
idSSV:60510
last seen2017-11-19
modified2012-12-13
published2012-12-13
reporterRoot
titleMicrosoft Windows TrueType Font (TTF)远程代码执行漏洞(MS12-078)