Vulnerability Alert

Microsoft Office Works WPS Converter Arbitrary Code Execution Vulnerability

 
Threat Type:CWE-94: Code Injection
IntelliShield ID:25608
Version:1
First Published:2012 April 10 17:41 GMT
Last Published:2012 April 10 17:41 GMT
Port: Not available
CVE:CVE-2012-0177
Urgency:Unlikely Use
Credibility:Confirmed
Severity:Moderate Damage
CVSS Base:9.3 CVSS Calculator
CVSS Version 2.0
CVSS Temporal:6.9
 
Version Summary:

Microsoft Office Works WPS Converter contains a vulnerability that could allow an unauthenticated, remote attacker to execute arbitrary code.?Updates are available.

 
 
Description

Microsoft Office Works WPS Converter contains a vulnerability that could allow an unauthenticated, remote attacker to execute arbitrary code on a targeted system.

The vulnerability is due to improper validation of the .wps (Microsoft Works) file format by the affected software. An unauthenticated, remote attacker could exploit this vulnerability by convincing a user to open a crafted .wps file with the affected software. If successful, the attacker could execute arbitrary code on the system with the privileges of the user.

Microsoft has confirmed this vulnerability in a security bulletin and has released updated software.

 
Warning Indicators

The following Microsoft products are?vulnerable:???

  • Microsoft Works 6-9 File Converter
  • Microsoft Office 2007 SP2
  • Microsoft Works 9.0
 
IntelliShield Analysis

To exploit the vulnerability, the attacker may provide a file or a link to a malicious website and use misleading language or instructions to persuade the user to open the file or follow the provided link.

A successful exploit could allow the attacker to execute arbitrary code with the privileges of the targeted user.

Microsoft has corrected this vulnerability by deprecating the vulnerable Microsoft Works converter.

The Cisco Applied Intelligence team has created an Applied Mitigation Bulletin to address vulnerabilities that Microsoft disclosed in the?April 2012 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?April 2012.

 
Vendor Announcements

Microsoft has released a security bulletin at the following link: MS12-028

 
Impact

An unauthenticated, remote attacker could exploit this vulnerability to execute arbitrary code on a targeted system with the privileges of the user. If the user holds elevated privileges, the attacker could gain complete control over the system.

 
Technical Information

The vulnerability is due to improper validation of?Microsoft Works?.wps?file format by the affected software.

An unauthenticated, remote attacker could exploit this vulnerability by convincing a user to open a .wps file that contains crafted content with the affected software. When processed, the malicious content could cause a heap overflow memory corruption error. The attacker could take advantage of the memory corruption to execute arbitrary code on the system with the privileges of the user.

 
Safeguards

Administrators are advised to apply the appropriate updates.

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 Windows Update website. 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
1136/0Microsoft Works Remote Code ExecutionS6402012 Apr 10 
 
Alert History
 

Initial Release



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

Primary Products:
Microsoft, Inc.Microsoft Works File Converter 6.0 Base | 7.0 Base | 8.0 Base | 9.0 Base

Associated Products:
Microsoft, Inc.Microsoft Works 9.0 Base
Microsoft, Inc.Office 2007 Base, SP1, SP2




Alerts and bulletins on the Cisco Security Intelligence Operations Portal are highlighted by analysts in the Cisco Threat Operations Center and represent a subset of the comprehensive content that is available through Cisco Security IntelliShield Alert Manager Service. This customizable threat and vulnerability alert service provides security staff with access to timely, accurate, and credible information about threats and vulnerabilities that may affect their environment.


LEGAL DISCLAIMER
The urgency and severity ratings of this alert are not tailored to individual users; users may value alerts differently based upon their network configurations and circumstances. THE ALERT, AND INFORMATION CONTAINED THEREIN, ARE PROVIDED ON AN "AS IS" BASIS AND DO NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE ALERT, AND INFORMATION CONTAINED THEREIN, OR MATERIALS LINKED FROM THE ALERT, IS AT YOUR OWN RISK. INFORMATION IN THIS ALERT AND ANY RELATED COMMUNICATIONS IS BASED ON OUR KNOWLEDGE AT THE TIME OF PUBLICATION AND IS SUBJECT TO CHANGE WITHOUT NOTICE. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE ALERTS AT ANY TIME.
Powered by  IntelliShield