Vulnerabilities > CVE-2011-1261 - Use of Uninitialized Resource vulnerability in Microsoft Internet Explorer

047910
CVSS 9.3 - CRITICAL
Attack vector
NETWORK
Attack complexity
MEDIUM
Privileges required
NONE
Confidentiality impact
COMPLETE
Integrity impact
COMPLETE
Availability impact
COMPLETE
network
microsoft
CWE-908
critical
nessus

Summary

Microsoft Internet Explorer 6 through 9 does not properly handle objects in memory, which allows remote attackers to execute arbitrary code by accessing an object that (1) was not properly initialized or (2) is deleted, aka "Selection Object Memory Corruption Vulnerability."

Common Weakness Enumeration (CWE)

Msbulletin

bulletin_idMS11-050
bulletin_url
date2011-06-14T00:00:00
impactRemote Code Execution
knowledgebase_id2530548
knowledgebase_url
severityCritical
titleCumulative Security Update for Internet Explorer

Nessus

NASL familyWindows : Microsoft Bulletins
NASL idSMB_NT_MS11-050.NASL
descriptionThe remote host is missing Internet Explorer (IE) Security Update 2497640. The installed version of IE is affected by several vulnerabilities that could allow an attacker to execute arbitrary code on the remote host.
last seen2020-06-01
modified2020-06-02
plugin id55130
published2011-06-15
reporterThis script is Copyright (C) 2011-2018 Tenable Network Security, Inc.
sourcehttps://www.tenable.com/plugins/nessus/55130
titleMS11-050: Cumulative Security Update for Internet Explorer (2530548)
code
#
# (C) Tenable Network Security, Inc.
#


include("compat.inc");


if (description)
{
  script_id(55130);
  script_version("1.27");
  script_cvs_date("Date: 2018/11/15 20:50:31");

  script_cve_id(
    "CVE-2011-1246",
    "CVE-2011-1250",
    "CVE-2011-1251",
    "CVE-2011-1252",
    "CVE-2011-1254",
    "CVE-2011-1255",
    "CVE-2011-1256",
    "CVE-2011-1258",
    "CVE-2011-1260",
    "CVE-2011-1261",
    "CVE-2011-1262"
  );
  script_bugtraq_id(
    48199,
    48200,
    48201,
    48202,
    48203,
    48204,
    48206,
    48207,
    48208,
    48210,
    48211
  );
  script_xref(name:"EDB-ID", value:"17409");
  script_xref(name:"MSFT", value:"MS11-050");
  script_xref(name:"MSKB", value:"2530548");

  script_name(english:"MS11-050: Cumulative Security Update for Internet Explorer (2530548)");
  script_summary(english:"Checks version of Mshtml.dll");

  script_set_attribute(
    attribute:"synopsis",
    value:
"Arbitrary code can be executed on the remote host through a web
browser."
  );
  script_set_attribute(
    attribute:"description",
    value:
"The remote host is missing Internet Explorer (IE) Security Update
2497640.

The installed version of IE is affected by several vulnerabilities that
could allow an attacker to execute arbitrary code on the remote host."
  );
  script_set_attribute(attribute:"see_also", value:"https://www.zerodayinitiative.com/advisories/ZDI-11-193/");
  script_set_attribute(attribute:"see_also", value:"https://www.zerodayinitiative.com/advisories/ZDI-11-194/");
  script_set_attribute(attribute:"see_also", value:"https://www.zerodayinitiative.com/advisories/ZDI-11-194/");
  script_set_attribute(attribute:"see_also", value:"https://www.zerodayinitiative.com/advisories/ZDI-11-196/");
  script_set_attribute(attribute:"see_also", value:"https://www.zerodayinitiative.com/advisories/ZDI-11-198/");
  script_set_attribute(attribute:"see_also", value:"https://docs.microsoft.com/en-us/security-updates/SecurityBulletins/2011/ms11-050");
  script_set_attribute(
    attribute:"solution",
    value:
"Microsoft has released a set of patches for XP, 2003, Vista, 2008, 7,
and 2008 R2."
  );
  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_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:"metasploit_name", value:'MS11-050 IE mshtml!CObjectElement Use After Free');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");
  script_set_attribute(attribute:"exploit_framework_canvas", value:"true");
  script_set_attribute(attribute:"canvas_package", value:'White_Phosphorus');

  script_set_attribute(attribute:"vuln_publication_date", value:"2011/06/14");
  script_set_attribute(attribute:"patch_publication_date", value:"2011/06/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2011/06/15");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:microsoft:windows");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:ie");
  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_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 = 'MS11-050';
kb = '2530548';

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);
if (hotfix_check_server_core() == 1) audit(AUDIT_WIN_SERVER_CORE);

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 and Windows Server 2008 R2
  #
  # - Internet Explorer 9
  hotfix_is_vulnerable(os:"6.1",       file:"Mshtml.dll", version:"9.0.8112.20530", min_version:"9.0.8112.20000", dir:"\system32", bulletin:bulletin, kb:kb) ||
  hotfix_is_vulnerable(os:"6.1",       file:"Mshtml.dll", version:"9.0.8112.16430", min_version:"9.0.8112.16000", dir:"\system32", bulletin:bulletin, kb:kb) ||

  # - Internet Explorer 8
  hotfix_is_vulnerable(os:"6.1", sp:1, file:"Mshtml.dll", version:"8.0.7601.21735", min_version:"8.0.7601.20000", dir:"\system32", bulletin:bulletin, kb:kb) ||
  hotfix_is_vulnerable(os:"6.1", sp:1, file:"Mshtml.dll", version:"8.0.7601.17622", min_version:"8.0.7601.17000", dir:"\system32", bulletin:bulletin, kb:kb) ||
  hotfix_is_vulnerable(os:"6.1", sp:0, file:"Mshtml.dll", version:"8.0.7600.20975", min_version:"8.0.7600.20000", dir:"\system32", bulletin:bulletin, kb:kb) ||
  hotfix_is_vulnerable(os:"6.1", sp:0, file:"Mshtml.dll", version:"8.0.7600.16821", min_version:"8.0.7600.16000", dir:"\system32", bulletin:bulletin, kb:kb) ||

  # Vista / Windows 2008
  #
  # - Internet Explorer 9
  hotfix_is_vulnerable(os:"6.0",       file:"Mshtml.dll", version:"9.0.8112.20530", min_version:"9.0.8112.20000", dir:"\system32", bulletin:bulletin, kb:kb) ||
  hotfix_is_vulnerable(os:"6.0",       file:"Mshtml.dll", version:"9.0.8112.16430", min_version:"9.0.8112.16000", dir:"\system32", bulletin:bulletin, kb:kb) ||
  # - Internet Explorer 8
  hotfix_is_vulnerable(os:"6.0",       file:"Mshtml.dll", version:"8.0.6001.23181", min_version:"8.0.6001.20000", dir:"\system32", bulletin:bulletin, kb:kb) ||
  hotfix_is_vulnerable(os:"6.0",       file:"Mshtml.dll", version:"8.0.6001.19088", min_version:"8.0.6001.18000", dir:"\system32", bulletin:bulletin, kb:kb) ||
  # - Internet Explorer 7
  hotfix_is_vulnerable(os:"6.0", sp:2, file:"Mshtml.dll", version:"7.0.6002.22629", min_version:"7.0.6002.20000", dir:"\system32", bulletin:bulletin, kb:kb) ||
  hotfix_is_vulnerable(os:"6.0", sp:2, file:"Mshtml.dll", version:"7.0.6002.18457", min_version:"7.0.6002.18000", dir:"\system32", bulletin:bulletin, kb:kb) ||
  hotfix_is_vulnerable(os:"6.0", sp:1, file:"Mshtml.dll", version:"7.0.6001.22905", min_version:"7.0.6001.20000", dir:"\system32", bulletin:bulletin, kb:kb) ||
  hotfix_is_vulnerable(os:"6.0", sp:1, file:"Mshtml.dll", version:"7.0.6001.18639", min_version:"7.0.6001.18000", dir:"\system32", bulletin:bulletin, kb:kb) ||

  # Windows 2003 / XP 64-bit
  #
  # - Internet Explorer 8
  hotfix_is_vulnerable(os:"5.2", sp:2, file:"Mshtml.dll", version:"8.0.6001.23181", min_version:"8.0.6001.20000", dir:"\system32", bulletin:bulletin, kb:kb) ||
  hotfix_is_vulnerable(os:"5.2", sp:2, file:"Mshtml.dll", version:"8.0.6001.19088", min_version:"8.0.0.0", dir:"\system32", bulletin:bulletin, kb:kb) ||
  # - Internet Explorer 7
  hotfix_is_vulnerable(os:"5.2", sp:2, file:"Mshtml.dll", version:"7.0.6000.21300", min_version:"7.0.6000.20000", dir:"\system32", bulletin:bulletin, kb:kb) ||
  hotfix_is_vulnerable(os:"5.2", sp:2, file:"Mshtml.dll", version:"7.0.6000.17098", min_version:"7.0.0.0", dir:"\system32", bulletin:bulletin, kb:kb) ||
  # - Internet Explorer 6
  hotfix_is_vulnerable(os:"5.2", sp:2, file:"Mshtml.dll", version:"6.0.3790.4857",  min_version:"6.0.0.0", dir:"\system32", bulletin:bulletin, kb:kb) ||

  # Windows XP x86
  #
  # - Internet Explorer 8
  hotfix_is_vulnerable(os:"5.1", sp:3, file:"Mshtml.dll", version:"8.0.6001.23181", min_version:"8.0.6001.20000", dir:"\system32", bulletin:bulletin, kb:kb) ||
  hotfix_is_vulnerable(os:"5.1", sp:3, file:"Mshtml.dll", version:"8.0.6001.19088", min_version:"8.0.0.0", dir:"\system32", bulletin:bulletin, kb:kb) ||
  # - Internet Explorer 7
  hotfix_is_vulnerable(os:"5.1", sp:3, file:"Mshtml.dll", version:"7.0.6000.21300", min_version:"7.0.6000.20000", dir:"\system32", bulletin:bulletin, kb:kb) ||
  hotfix_is_vulnerable(os:"5.1", sp:3, file:"Mshtml.dll", version:"7.0.6000.17098", min_version:"7.0.0.0", dir:"\system32", bulletin:bulletin, kb:kb) ||
  # - Internet Explorer 6
  hotfix_is_vulnerable(os:"5.1", sp:3, file:"Mshtml.dll", version:"6.0.2900.6104",  min_version:"6.0.2900.0", 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');
}

Oval

accepted2014-08-18T04:00:38.115-04:00
classvulnerability
contributors
  • nameDragos Prisaca
    organizationSymantec Corporation
  • nameDragos Prisaca
    organizationSymantec Corporation
  • nameMaria Mikhno
    organizationALTX-SOFT
  • nameMaria Mikhno
    organizationALTX-SOFT
definition_extensions
  • commentMicrosoft Windows XP (32-bit) is installed
    ovaloval:org.mitre.oval:def:1353
  • commentMicrosoft Internet Explorer 6 is installed
    ovaloval:org.mitre.oval:def:563
  • commentMicrosoft Windows XP x64 is installed
    ovaloval:org.mitre.oval:def:15247
  • commentMicrosoft Windows Server 2003 (32-bit) is installed
    ovaloval:org.mitre.oval:def:1870
  • commentMicrosoft Windows Server 2003 (x64) is installed
    ovaloval:org.mitre.oval:def:730
  • commentMicrosoft Windows Server 2003 (ia64) Gold is installed
    ovaloval:org.mitre.oval:def:396
  • commentMicrosoft Internet Explorer 6 is installed
    ovaloval:org.mitre.oval:def:563
  • commentMicrosoft Windows XP (32-bit) is installed
    ovaloval:org.mitre.oval:def:1353
  • commentMicrosoft Windows XP x64 is installed
    ovaloval:org.mitre.oval:def:15247
  • commentMicrosoft Windows Server 2003 (32-bit) is installed
    ovaloval:org.mitre.oval:def:1870
  • commentMicrosoft Windows Server 2003 (x64) is installed
    ovaloval:org.mitre.oval:def:730
  • commentMicrosoft Windows Server 2003 (ia64) Gold is installed
    ovaloval:org.mitre.oval:def:396
  • commentMicrosoft Internet Explorer 7 is installed
    ovaloval:org.mitre.oval:def:627
  • commentMicrosoft Windows Vista (32-bit) is installed
    ovaloval:org.mitre.oval:def:1282
  • commentMicrosoft Windows Vista x64 Edition is installed
    ovaloval:org.mitre.oval:def:2041
  • commentMicrosoft Windows Server 2008 (32-bit) is installed
    ovaloval:org.mitre.oval:def:4870
  • commentMicrosoft Windows Server 2008 (64-bit) is installed
    ovaloval:org.mitre.oval:def:5356
  • commentMicrosoft Windows Server 2008 (ia-64) is installed
    ovaloval:org.mitre.oval:def:5667
  • commentMicrosoft Internet Explorer 7 is installed
    ovaloval:org.mitre.oval:def:627
  • commentMicrosoft Windows Vista (32-bit) is installed
    ovaloval:org.mitre.oval:def:1282
  • commentMicrosoft Windows Vista x64 Edition is installed
    ovaloval:org.mitre.oval:def:2041
  • commentMicrosoft Windows Server 2008 (32-bit) is installed
    ovaloval:org.mitre.oval:def:4870
  • commentMicrosoft Windows Server 2008 (64-bit) is installed
    ovaloval:org.mitre.oval:def:5356
  • commentMicrosoft Windows Server 2008 (ia-64) is installed
    ovaloval:org.mitre.oval:def:5667
  • commentMicrosoft Internet Explorer 7 is installed
    ovaloval:org.mitre.oval:def:627
  • commentMicrosoft Windows XP (32-bit) is installed
    ovaloval:org.mitre.oval:def:1353
  • commentMicrosoft Windows XP x64 is installed
    ovaloval:org.mitre.oval:def:15247
  • commentMicrosoft Windows Server 2003 (32-bit) is installed
    ovaloval:org.mitre.oval:def:1870
  • commentMicrosoft Windows Server 2003 (x64) is installed
    ovaloval:org.mitre.oval:def:730
  • commentMicrosoft Internet Explorer 8 is installed
    ovaloval:org.mitre.oval:def:6210
  • commentMicrosoft Windows Vista (32-bit) is installed
    ovaloval:org.mitre.oval:def:1282
  • commentMicrosoft Windows Vista x64 Edition is installed
    ovaloval:org.mitre.oval:def:2041
  • commentMicrosoft Windows Server 2008 (32-bit) is installed
    ovaloval:org.mitre.oval:def:4870
  • commentMicrosoft Windows Server 2008 (64-bit) is installed
    ovaloval:org.mitre.oval:def:5356
  • commentMicrosoft Internet Explorer 8 is installed
    ovaloval:org.mitre.oval:def:6210
  • commentMicrosoft Windows 7 (32-bit) is installed
    ovaloval:org.mitre.oval:def:6165
  • commentMicrosoft Windows 7 x64 Edition is installed
    ovaloval:org.mitre.oval:def:5950
  • 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 Internet Explorer 8 is installed
    ovaloval:org.mitre.oval:def:6210
  • commentMicrosoft Windows 7 (32-bit) is installed
    ovaloval:org.mitre.oval:def:6165
  • commentMicrosoft Windows 7 x64 Edition is installed
    ovaloval:org.mitre.oval:def:5950
  • 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 Internet Explorer 8 is installed
    ovaloval:org.mitre.oval:def:6210
  • commentMicrosoft Windows Vista (32-bit) is installed
    ovaloval:org.mitre.oval:def:1282
  • commentMicrosoft Windows Vista x64 Edition is installed
    ovaloval:org.mitre.oval:def:2041
  • commentMicrosoft Windows Server 2008 (32-bit) is installed
    ovaloval:org.mitre.oval:def:4870
  • commentMicrosoft Windows Server 2008 (64-bit) is installed
    ovaloval:org.mitre.oval:def:5356
  • commentMicrosoft Windows 7 (32-bit) is installed
    ovaloval:org.mitre.oval:def:6165
  • commentMicrosoft Windows 7 x64 Edition is installed
    ovaloval:org.mitre.oval:def:5950
  • 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 Internet Explorer 9 is installed
    ovaloval:org.mitre.oval:def:11985
descriptionMicrosoft Internet Explorer 6 through 9 does not properly handle objects in memory, which allows remote attackers to execute arbitrary code by accessing an object that (1) was not properly initialized or (2) is deleted, aka "Selection Object Memory Corruption Vulnerability."
familywindows
idoval:org.mitre.oval:def:12755
statusaccepted
submitted2011-06-14T13:00:00
titleSelection Object Memory Corruption Vulnerability
version80

Seebug

bulletinFamilyexploit
descriptionBugtraq ID: 48210 CVE ID:CVE-2011-1261 Microsoft Internet Explorer是一款微软开发的WEB浏览器。 在部分点击事件过程中Internet explorer处理javascript语句'selection.empty'存在缺陷。通过触发特定序列的事件,攻击者可释放一个还在使用的CDisplayObject对象。对之前释放内存的操作可导致任意代码执行。 Microsoft Internet Explorer 9 Microsoft Internet Explorer 8 Microsoft Internet Explorer 7.0 Microsoft Internet Explorer 7.0 Microsoft Internet Explorer 6.0 SP3 Microsoft Internet Explorer 6.0 SP2 Microsoft Internet Explorer 6.0 SP1 Microsoft Internet Explorer 6.0 厂商解决方案 用户可参考如下供应商提供的安全公告获得补丁信息: http://www.microsoft.com/technet/security/Bulletin/MS11-050.mspx
idSSV:20633
last seen2017-11-19
modified2011-06-16
published2011-06-16
reporterRoot
titleMicrosoft Internet Explorer Selection未初始化内存远程代码执行漏洞