CERT-In Vulnerability Note
CIVN-2006-0112
Microsoft XML Core Services XMLHTTP ActiveX Control Code Execution Vulnerability
Original Issue Date:November 06, 2006
Updated: November 15, 2006
Severity Rating: HIGH
Systems Affected
Microsoft XML Core Services 4.0
Overview
A remote code execution vulnerability has been reported in Microsoft XML Core Services that could be exploited by an attacker to take complete control of the vulnerable system.
Description
The vulnerability is caused due to a memory corruption error in the XMLHTTP ActiveX Control while processing specially crafted arguments passed to a setRequestHeader " method.
The attacker could exploit this vulnerability by creating and hosting a specially crafted webpage on a website and could persuade user to visit the website. The attacker could then execute arbitrary commands on the vulnerable system and could take complete control of the vulnerable system remotely. This is to be noted that vulnerability is currently being exploited in the wild.
Workaround
- Prevent the XMLHTTP 4.0 ActiveX Control from running in Internet Explorer.
- Configure Internet Explorer to prompt before running Active Scripting or disable Active Scripting in the Internet and Local intranet security zone.
- Configure Internet Explorer to prompt before running ActiveX Controls or disable ActiveX Controls in the Internet and Local intranet security zone.
- Set Internet and Local intranet security zone settings to "High" to prompt before running ActiveX Controls and Active Scripting in these zones.
- Deny Access to the affected CLSIDs for Microsoft XML Core Services 4.0 {88D969C5-F192-11D4-A65F-0040963251E5} and Microsoft XML Core Services 6.0 {88D96A0A-F192-11D4-A65F-0040963251E5} in the registry
Solution
Apply appropriate patches as mentioned in Microsoft Security Bulletin MS06-071
References
Microsoft
http://www.microsoft.com/technet/security/advisory/927892.mspx
http://www.microsoft.com/technet/security/bulletin/ms06-071.mspx
USCERT
http://www.kb.cert.org/vuls/id/585137
FrSIRT
http://www.frsirt.com/english/advisories/2006/4334
Secunia
http://secunia.com/advisories/22687/
SANS
http://isc.sans.org/diary.php?storyid=1823
CVE Name
CVE-2006-5745
Disclaimer
The information provided herein is on "as is" basis, without warranty of any kind.
Contact Information
Email: info@cert-in.org.in Phone: +91-11-2436857
Postal address
Indian Computer Emergency Response Team (CERT-In)
Ministry of Electronics and Information Technology
Government of India
Electronics Niketan
6, CGO Complex, Lodhi Road,
New Delhi - 110 003
India
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