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Secunia Advisory SA25998

AVG Antivirus AVG7CORE.SYS IOCTL Handler Privilege Escalation
Secunia Advisory SA25998
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Release Date 2007-07-12
Last Update 2007-07-19
   
Popularity 11,584 views
Comments 0 comments

Criticality level Less criticalLess critical
Impact Privilege escalation
Where Local system
Authentication level Available in Customer Area
   
Report reliability Available in Customer Area
Solution Status Vendor Patch
   
Systems affected Available in Customer Area
Approve distribution Available in Customer Area
Remediation status Secunia CSI, Secunia PSI
Automated scanning Secunia CSI, Secunia PSI
   
Software:
AVG Anti-Virus Free Edition 7.x
AVG Antivirus Professional
AVG Antivirus Server

Secunia CVSS Score Available in Customer Area
CVE Reference(s) CVE-2007-3777 CVSS available in Customer Area
  

Description

Jonathan Lindsay has reported a vulnerability in AVG Antivirus, which potentially can be exploited by malicious, local users to gain escalated privileges.

An input validation error within the 0x5348E004 IOCTL handler of the AVG7CORE.SYS device driver and insecure permissions on the device interface can be exploited e.g. to access the affected IOCTL handler and overwrite arbitrary kernel memory.

The vulnerability is reported in AVG7CORE.SYS version 7.5.0.444 included in AVG Free 7.5.446 and AVG Antivirus 7.5.448.


Solution
Update to AVG 7.5 build 476.
Further details available in Customer Area

Provided and/or discovered by
Jonathan Lindsay, NGSSoftware

Changelog
Further details available in Customer Area

Deep Links
Links available in Customer Area


Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: AVG Antivirus AVG7CORE.SYS IOCTL Handler Privilege Escalation
 
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