Vulnerabilities > CVE-2011-1260 - Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in Microsoft Internet Explorer 8/9

047910
CVSS 0.0 - NONE
Attack vector
UNKNOWN
Attack complexity
UNKNOWN
Privileges required
UNKNOWN
Confidentiality impact
UNKNOWN
Integrity impact
UNKNOWN
Availability impact
UNKNOWN
microsoft
CWE-119
nessus
exploit available
metasploit

Summary

Microsoft Internet Explorer 8 and 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 "Layout Memory Corruption Vulnerability."

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.
  • Overflow Buffers
    Buffer Overflow attacks target improper or missing bounds checking on buffer operations, typically triggered by input injected by an attacker. As a consequence, an attacker is able to write past the boundaries of allocated buffer regions in memory, causing a program crash or potentially redirection of execution as per the attackers' choice.
  • Client-side Injection-induced Buffer Overflow
    This type of attack exploits a buffer overflow vulnerability in targeted client software through injection of malicious content from a custom-built hostile service.
  • Filter Failure through Buffer Overflow
    In this attack, the idea is to cause an active filter to fail by causing an oversized transaction. An attacker may try to feed overly long input strings to the program in an attempt to overwhelm the filter (by causing a buffer overflow) and hoping that the filter does not fail securely (i.e. the user input is let into the system unfiltered).
  • MIME Conversion
    An attacker exploits a weakness in the MIME conversion routine to cause a buffer overflow and gain control over the mail server machine. The MIME system is designed to allow various different information formats to be interpreted and sent via e-mail. Attack points exist when data are converted to MIME compatible format and back.

Exploit-Db

descriptionMS11-050 IE mshtml!CObjectElement Use After Free. CVE-2011-1260. Remote exploit for windows platform
idEDB-ID:17409
last seen2016-02-02
modified2011-06-17
published2011-06-17
reportermetasploit
sourcehttps://www.exploit-db.com/download/17409/
titleMicrosoft Internet Explorer - mshtml!CObjectElement Use After Free MS11-050

Metasploit

descriptionThis module exploits a use-after-free vulnerability in Internet Explorer. The vulnerability occurs when an invalid tag exists and other elements overlap/cover where the object tag should be when rendered (due to their styles/positioning). The mshtml!CObjectElement is then freed from memory because it is invalid. However, the mshtml!CDisplay object for the page continues to keep a reference to the freed and attempts to call a function on it, leading to the use-after-free. Please note that for IE 8 targets, JRE (Java Runtime Environment) is required to bypass DEP (Data Execution Prevention).
idMSF:EXPLOIT/WINDOWS/BROWSER/MS11_050_MSHTML_COBJECTELEMENT
last seen2020-06-04
modified2017-10-05
published2011-06-16
references
reporterRapid7
sourcehttps://github.com/rapid7/metasploit-framework/blob/master//modules/exploits/windows/browser/ms11_050_mshtml_cobjectelement.rb
titleMS11-050 IE mshtml!CObjectElement Use After Free

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

accepted2014-08-18T04:00:24.036-04:00
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 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 8 and 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 "Layout Memory Corruption Vulnerability."
familywindows
idoval:org.mitre.oval:def:12308
statusaccepted
submitted2011-06-14T13:00:00
titleLayout Memory Corruption Vulnerability
version79

Saint

bid48208
descriptionMicrosoft Internet Explorer layout-grid-char Style Property Use-After-Free Memory Corruption
idwin_patch_ie_v8
osvdb72950
titleie_layoutgridchar
typeclient