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Vulnerability Alert

Microsoft Internet Explorer saveHistory Use-After-Free Vulnerability

 
Threat Type:CWE-119: Buffer Errors
IntelliShield ID:28477
Version:2
First Published:2013 March 12 17:33 GMT
Last Published:2013 May 24 19:15 GMT
Port: Not available
CVE:CVE-2013-0088
BugTraq ID:58342
Urgency:Unlikely Use
Credibility:Confirmed
Severity:Moderate Damage
CVSS Base:9.3 CVSS Calculator
CVSS Version 2.0
CVSS Temporal:6.9
Related Resources:
View related IPS SignatureView related Applied Mitigation BulletinView related Event Response
 
 
Version Summary:Additional technical information to describe the Microsoft Internet Explorer saveHistory use-after-free vulnerability is available.
 
 
Description
Microsoft Internet Explorer contains a vulnerability that could allow an unauthenticated, remote attacker to execute arbitrary code on the targeted system.

The vulnerability is due to improper memory operations performed by Internet Explorer. An unauthenticated, remote attacker could exploit this vulnerability by convincing a targeted user to view a malicious website. If successful, the attacker could execute arbitrary code on the targeted system with the privileges of the targeted user.

Microsoft confirmed the vulnerability in a security bulletin and released software updates.
 
Warning Indicators
Microsoft Internet Explorer 6, 7, 8, 9, and 10 are vulnerable when running on the following systems:
  • Windows XP SP3 and Professional x64 Edition SP2
  • Windows Server 2003, x64 Edition and Itanium-based Systems SP2
  • Windows Vista and x64 Edition SP2
  • Windows Server 2008 for 32-bit, x64-based Systems and Itanium-based Systems SP2
  • Windows 7 for 32-bit and x64-based Systems SP1 and prior
  • Windows Server 2008 R2 for x64-based and Itanium-based Systems SP1 and prior
  • Windows 8 for 32-bit and 64-bit Systems
  • Windows Server 2012
  • Windows RT
 
IntelliShield Analysis
To exploit the vulnerability, the attacker may provide a link that directs a user to a malicious site and use misleading language or instructions to persuade the user to follow the provided link.

The Cisco Applied Intelligence team has created an Applied Mitigation Bulletin to address vulnerabilities that Microsoft disclosed in the March 2013 security bulletin release. This Cisco bulletin, which assists administrators in identifying or mitigating these vulnerabilities using Cisco devices, is available at the following link: Cisco Applied Mitigation Bulletin: Microsoft Security Bulletin Release for March 2013
 
Vendor Announcements
Microsoft has released a security bulletin at the following link: MS13-021
 
Impact
An unauthenticated, remote attacker could exploit this vulnerability to execute arbitrary code on the targeted system with the privileges of the targeted user. If that user holds elevated privileges, the attacker could completely compromise the targeted system.
 
Technical Information
The vulnerability is due to errors in processing saveHistory object attributes within HTML or XML content. The process can be made to re-use a freed object. This can lead to a use-after-free memory error, which can be leveraged to execute code under the context of the user running the browser triggering access to deleted objects.

An unauthenticated, remote attacker could exploit this vulnerability by convincing a targeted user to view a malicious website within Internet Explorer. When processed, malicious content within the website could cause Internet Explorer to free previously removed or uninitialized memory objects, resulting in a use-after-free condition. The attacker could leverage memory corruption resulting from the use-after-free to execute arbitrary code on the targeted system with the privileges of the targeted user.
 
Safeguards
Administrators are advised to apply the appropriate updates.

Administrators may consider configuring Internet Explorer to prompt users before running Active Scripting or ActiveX controls by setting the Internet and Local Intranet security zone settings to High. Alternately, administrators could disable Active Scripting and ActiveX controls in these security zones.

Users are advised not to open e-mail messages from suspicious or unrecognized sources. If users cannot verify that links or attachments included in e-mail messages are safe, they are advised not to open them.

Administrators may consider using the Microsoft Baseline Security Analyzer (MBSA) scan tool to identify common security misconfigurations and missing security updates on system endpoints.

Administrators are advised to monitor affected systems.
 
Patches/Software
Microsoft customers can obtain updates directly by using the links in the security bulletin. These updates are also distributed by Windows automatic update features and available on the Microsoft Update service. Microsoft Windows Server Update Services (WSUS), Systems Management Server, and System Center Configuration Manager can assist administrators in deploying software updates.

Signatures
 
Cisco Intrusion Prevention System (IPS) 6.0
Signature IDSignature NameReleaseLatest Release Date
1973/0Microsoft Internet Explorer Remote Code ExecutionS7202013 May 22 
2237/0Microsoft Internet Explorer saveHistory Use After FreeS7542013 Nov 14 
 
Alert History
 
Version 1, March 12, 2013, 9:33 AM: Microsoft Internet Explorer contains a vulnerability that could allow an unauthenticated, remote attacker to execute arbitrary code on the targeted system. Updates are available.


Product Sets
 
The security vulnerability applies to the following combinations of products.

Primary Products:
Microsoft, Inc.Internet Explorer 6.0 Base, SP1, SP2 | 7.0 Base | 8.0 Base | 9.0 Base | 10.0 Base

Associated Products:
Microsoft, Inc.Windows 7 for 32-bit systems Base, SP1 | for x64-based systems Base, SP1
Microsoft, Inc.Windows RT Original Release Base
Microsoft, Inc.Windows Server 2003 Datacenter Edition Base, SP1, SP2 | Datacenter Edition, 64-bit (Itanium) Base, SP1, SP2 | Datacenter Edition x64 (AMD/EM64T) Base, SP1, SP2 | Enterprise Edition Base, SP1, SP2 | Enterprise Edition, 64-bit (Itanium) Base, SP1, SP2 | Enterprise Edition x64 (AMD/EM64T) Base, SP1, SP2 | Standard Edition Base, SP1, SP2 | Standard Edition, 64-bit (Itanium) Base, SP1, SP2 | Standard Edition x64 (AMD/EM64T) Base, SP1, SP2 | Web Edition Base, SP1, SP2
Microsoft, Inc.Windows Server 2008 Datacenter Edition Base, SP1, SP2 | Datacenter Edition, 64-bit Base, SP1, SP2 | Itanium-Based Systems Edition Base, SP1, SP2 | Enterprise Edition Base, SP1, SP2 | Enterprise Edition, 64-bit Base, SP1, SP2 | Essential Business Server Standard Base, SP1, SP2 | Essential Business Server Premium Base, SP1, SP2 | Essential Business Server Premium, 64-bit Base, SP1, SP2 | Standard Edition Base, SP1, SP2 | Standard Edition, 64-bit Base, SP1, SP2 | Web Server Base, SP1, SP2 | Web Server, 64-bit Base, SP1, SP2
Microsoft, Inc.Windows Server 2008 R2 x64-Based Systems Edition Base, SP1 | Itanium-Based Systems Edition Base, SP1
Microsoft, Inc.Windows Server 2012 Original Release Base
Microsoft, Inc.Windows Vista Home Basic Base, SP1, SP2 | Home Premium Base, SP1, SP2 | Business Base, SP1, SP2 | Enterprise Base, SP1, SP2 | Ultimate Base, SP1, SP2 | Home Basic x64 Edition Base, SP1, SP2 | Home Premium x64 Edition Base, SP1, SP2 | Business x64 Edition Base, SP1, SP2 | Enterprise x64 Edition Base, SP1, SP2 | Ultimate x64 Edition Base, SP1, SP2
Microsoft, Inc.Windows XP Home Edition Base, SP1, SP2, SP3 | Professional Edition Base, SP1, SP2, SP3 | Professional x64 (AMD/EM64T) Base, SP1, SP2, SP3
Microsoft, Inc.Windows 8 for 32-bit systems Base | for x64-based systems Base




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