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Secunia Security Advisory 40085

Secunia Security Advisory 40085
Posted Jun 11, 2010
Authored by Secunia | Site secunia.com

Secunia Security Advisory - A vulnerability has been reported in Sophos Anti-Virus, which can be exploited by malicious, local users to cause a DoS (Denial of Service) or gain escalated privileges.

tags | advisory, denial of service, local, virus
SHA-256 | 9edaaa85bd1e91418605d413af6147678d0d63e242610f8c1f05bad9754d0eb0

Secunia Security Advisory 40085

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TITLE:
Sophos Anti-Virus "NtQueryAttributesFile()" Privilege Escalation
Vulnerability

SECUNIA ADVISORY ID:
SA40085

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/40085/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=40085

RELEASE DATE:
2010-06-11

DISCUSS ADVISORY:
http://secunia.com/advisories/40085/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
* Last Update
* Popularity
* Comments
* Criticality Level
* Impact
* Where
* Solution Status
* Operating System / Software
* CVE Reference(s)

http://secunia.com/advisories/40085/

ONLY AVAILABLE IN CUSTOMER AREA:
* Authentication Level
* Report Reliability
* Secunia PoC
* Secunia Analysis
* Systems Affected
* Approve Distribution
* Remediation Status
* Secunia CVSS Score
* CVSS

https://ca.secunia.com/?page=viewadvisory&vuln_id=40085

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
* AUTOMATED SCANNING

http://secunia.com/vulnerability_scanning/personal/
http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/

DESCRIPTION:
A vulnerability has been reported in Sophos Anti-Virus, which can be
exploited by malicious, local users to cause a DoS (Denial of
Service) or gain escalated privileges.

The vulnerability is caused due to an error in the
savonaccessfilter.sys driver when processing system call parameters.
This can be exploited to corrupt kernel memory and execute arbitrary
code in kernel space via specially crafted parameters passed to the
"NtQueryAttributesFile()" function.

SOLUTION:
Update to version 7.6.20 or later.

PROVIDED AND/OR DISCOVERED BY:
Cody Pierce, TippingPoint DVLabs

ORIGINAL ADVISORY:
Sophos:
http://www.sophos.com/support/knowledgebase/article/111126.html

TippingPoint DVLabs:
http://archives.neohapsis.com/archives/fulldisclosure/2010-06/0185.html

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

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About:
This Advisory was delivered by Secunia as a free service to help
private users keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
http://secunia.com/advisories/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/advisories/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

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