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>> Sysinternals DebugView "Dbgv.sys" Privilege Escalation Vulnerability

Title : Sysinternals DebugView "Dbgv.sys" Privilege Escalation Vulnerability
VUPEN ID : VUPEN/ADV-2007-3756
CVE ID : CVE-2007-4223
Rated as : Moderate Risk 
Remotely Exploitable : No
Locally Exploitable : Yes
Release Date : 2007-11-07


Technical Description    Receive VUPEN Security alerts in a Text format  Receive VUPEN Security alerts in a PDF format  Receive VUPEN Security alerts in an XML format 

A vulnerability has been identified in Sysinternals DebugView, which could be exploited by local attackers to gain elevated privileges. This issue is caused by a design error when loading the "Dbgv.sys" module which includes functionality that can be exploited to copy user supplied data to controlled addresses, leading to the execution of malicious code with kernel privileges.

Affected Products

Sysinternals DebugView versions prior to 4.72

Solution

Upgrade to Sysinternals DebugView version 4.72 :
http://www.microsoft.com/technet/sysinternals/utilities/debugview.mspx

References

http://www.vupen.com/english/advisories/2007/3756
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=621

Credits

Vulnerability reported by Stephen Fewer (Harmony Security) and VeriSign iDefense Labs.

ChangeLog

2007-11-07 : Initial release

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