Vulnerabilities > CVE-2012-1526 - Buffer Errors vulnerability in Microsoft Internet Explorer 6/7

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-119
critical
nessus

Summary

Microsoft Internet Explorer 6 and 7 does not properly handle objects in memory, which allows remote attackers to execute arbitrary code by accessing an object that (1) was not initialized or (2) is deleted, aka "Layout Memory Corruption Vulnerability."

Vulnerable Configurations

Part Description Count
Application
Microsoft
2

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.

Msbulletin

bulletin_idMS12-052
bulletin_url
date2012-08-14T00:00:00
impactRemote Code Execution
knowledgebase_id2722913
knowledgebase_url
severityCritical
titleCumulative Security Update for Internet Explorer

Nessus

NASL familyWindows : Microsoft Bulletins
NASL idSMB_NT_MS12-052.NASL
descriptionThe remote host is missing Internet Explorer (IE) Security Update 2722913. The installed version of IE is affected by vulnerabilities that could allow an attacker to execute arbitrary code on the remote host.
last seen2020-06-01
modified2020-06-02
plugin id61527
published2012-08-15
reporterThis script is Copyright (C) 2012-2018 Tenable Network Security, Inc.
sourcehttps://www.tenable.com/plugins/nessus/61527
titleMS12-052: Cumulative Security Update for Internet Explorer (2722913)
code
#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(61527);
  script_version("1.13");
  script_cvs_date("Date: 2018/11/15 20:50:31");

  script_cve_id("CVE-2012-1526", "CVE-2012-2521", "CVE-2012-2522", "CVE-2012-2523");
  script_bugtraq_id(54945, 54950, 54951, 54952);
  script_xref(name:"MSFT", value:"MS12-052");
  script_xref(name:"IAVA", value:"2012-A-0130");
  script_xref(name:"MSKB", value:"2722913");

  script_name(english:"MS12-052: Cumulative Security Update for Internet Explorer (2722913)");
  script_summary(english:"Checks version of Mshtml.dll");

  script_set_attribute(
    attribute:"synopsis",
    value:"The remote host is affected by code execution vulnerabilities."
  );
  script_set_attribute(
    attribute:"description",
    value:
"The remote host is missing Internet Explorer (IE) Security Update
2722913.

The installed version of IE is affected by vulnerabilities that could
allow an attacker to execute arbitrary code on the remote host."
  );
  script_set_attribute(attribute:"see_also", value:"https://docs.microsoft.com/en-us/security-updates/SecurityBulletins/2012/ms12-052");
  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:"exploited_by_malware", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2012/08/14");
  script_set_attribute(attribute:"patch_publication_date", value:"2012/08/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2012/08/15");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:ie");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:microsoft:windows");
  script_set_attribute(attribute:"stig_severity", value:"II");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Windows : Microsoft Bulletins");

  script_copyright(english:"This script is Copyright (C) 2012-2018 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 = 'MS12-052';
kb = '2722913';

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:'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 / 2008 R2
  #
  # - Internet Explorer 9
  hotfix_is_vulnerable(os:"6.1",       file:"Mshtml.dll", version:"9.0.8112.20554", min_version:"9.0.8112.20000", dir:"\system32", bulletin:bulletin, kb:kb) ||
  hotfix_is_vulnerable(os:"6.1",       file:"Mshtml.dll", version:"9.0.8112.16448", 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:"8.0.7601.22032", min_version:"8.0.7601.20000", dir:"\system32", bulletin:bulletin, kb:kb) ||
  hotfix_is_vulnerable(os:"6.1", sp:1, file:"Mshtml.dll", version:"8.0.7601.17874", min_version:"8.0.7601.17000", dir:"\system32", bulletin:bulletin, kb:kb) ||
  hotfix_is_vulnerable(os:"6.1", sp:0, file:"Mshtml.dll", version:"8.0.7600.21245", min_version:"8.0.7600.20000", dir:"\system32", bulletin:bulletin, kb:kb) ||
  hotfix_is_vulnerable(os:"6.1", sp:0, file:"Mshtml.dll", version:"8.0.7600.17051", min_version:"8.0.7600.16000", dir:"\system32", bulletin:bulletin, kb:kb) ||

  # Vista / 2008
  #
  # - Internet Explorer 9
  hotfix_is_vulnerable(os:"6.0", sp:2, file:"Mshtml.dll", version:"9.0.8112.20554", min_version:"9.0.8112.20000", dir:"\system32", bulletin:bulletin, kb:kb) ||
  hotfix_is_vulnerable(os:"6.0", sp:2, file:"Mshtml.dll", version:"9.0.8112.16448", min_version:"9.0.8112.16000", dir:"\system32", bulletin:bulletin, kb:kb) ||
  # - Internet Explorer 8
  hotfix_is_vulnerable(os:"6.0", sp:2, file:"Mshtml.dll", version:"8.0.6001.23385", min_version:"8.0.6001.20000", dir:"\system32", bulletin:bulletin, kb:kb) ||
  hotfix_is_vulnerable(os:"6.0", sp:2, file:"Mshtml.dll", version:"8.0.6001.19298", 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:"7.0.6002.22885", min_version:"7.0.6002.20000", dir:"\system32", bulletin:bulletin, kb:kb) ||
  hotfix_is_vulnerable(os:"6.0", sp:2, file:"Mshtml.dll", version:"7.0.6002.18658", min_version:"7.0.6002.18000", 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:"8.0.6001.23385", min_version:"8.0.6001.20000", dir:"\system32", bulletin:bulletin, kb:kb) ||
  hotfix_is_vulnerable(os:"5.2", sp:2, file:"Mshtml.dll", version:"8.0.6001.19298", 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:"7.0.6000.21314", min_version:"7.0.6000.20000", dir:"\system32", bulletin:bulletin, kb:kb) ||
  hotfix_is_vulnerable(os:"5.2", sp:2, file:"Mshtml.dll", version:"7.0.6000.17112", 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:"6.0.3790.5029",  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:"8.0.6001.23385", min_version:"8.0.6001.20000", dir:"\system32", bulletin:bulletin, kb:kb) ||
  hotfix_is_vulnerable(os:"5.1", sp:3, file:"Mshtml.dll", version:"8.0.6001.19298", 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:"7.0.6000.21314", min_version:"7.0.6000.20000", dir:"\system32", bulletin:bulletin, kb:kb) ||
  hotfix_is_vulnerable(os:"5.1", sp:3, file:"Mshtml.dll", version:"7.0.6000.17112", 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:"6.0.2900.6266",  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

accepted2014-08-18T04:01:12.187-04:00
classvulnerability
contributors
  • nameSecPod Team
    organizationSecPod Technologies
  • nameMaria Mikhno
    organizationALTX-SOFT
  • nameMaria Mikhno
    organizationALTX-SOFT
definition_extensions
  • 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 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 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
descriptionMicrosoft Internet Explorer 6 and 7 does not properly handle objects in memory, which allows remote attackers to execute arbitrary code by accessing an object that (1) was not initialized or (2) is deleted, aka "Layout Memory Corruption Vulnerability."
familywindows
idoval:org.mitre.oval:def:15240
statusaccepted
submitted2012-08-20T11:14:26
titleLayout memory corruption vulnerability - MS12-052
version76