Sophos Anti-Virus 2.3 CPIO Archive stack-based overflow

CVSS Meta Temp Score
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CTI Interest Score
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6.4$0-$5k0.00

A vulnerability was found in Sophos Anti-Virus 2.3 (Anti-Malware Software) and classified as critical. This issue affects an unknown code of the component CPIO Archive Handler. The manipulation with an unknown input leads to a stack-based overflow vulnerability. Using CWE to declare the problem leads to CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Multiple buffer overflows in Sophos Anti-Virus scanning engine before 2.40 allow remote attackers to execute arbitrary code via (1) a SIT archive with a long filename that is not null-terminated, which triggers a heap-based overflow in veex.dll due to improper length calculation, and (2) a CPIO archive, with a long filename that is not null-terminated, which triggers a stack-based overflow in veex.dll.

The weakness was released 12/13/2006 with ZDI (Website). The advisory is shared at zerodayinitiative.com. The identification of this vulnerability is CVE-2006-6335 since 12/06/2006. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available.

It is declared as proof-of-concept.

Upgrading eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at sophos.com. The best possible mitigation is suggested to be upgrading to the latest version. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 4918. The filter is assigned to the category Vulnerabilities.

The vulnerability is also documented in the vulnerability database at X-Force (30851). Entry connected to this vulnerability is available at 2742.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.4

VulDB Base Score: 7.3
VulDB Temp Score: 6.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Stack-based overflow
CWE: CWE-121 / CWE-119
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍
Patch: sophos.com
TippingPoint: 🔍
TippingPoint Title: 🔍
TippingPoint Category: 🔍

Timelineinfo

12/06/2006 🔍
12/12/2006 +6 days 🔍
12/12/2006 +0 days 🔍
12/13/2006 +1 days 🔍
12/13/2006 +0 days 🔍
12/15/2006 +2 days 🔍
04/22/2018 +4146 days 🔍

Sourcesinfo

Vendor: sophos.com

Advisory: zerodayinitiative.com
Researcher: http://www.zerodayinitiative.com
Organization: ZDI
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2006-6335 (🔍)
X-Force: 30851 - Sophos Anti-Virus CPIO archive buffer overflow, High Risk
SecurityFocus: 21563 - Sophos Anti-Virus Scanning Engine Veex.DLL Multiple Buffer Overflow Vulnerabilities
Secunia: 23325 - Sophos Anti-Virus SIT/CPIO File Processing Vulnerabilities, Highly Critical
Vupen: ADV-2006-4919

See also: 🔍

Entryinfo

Created: 12/15/2006 09:36
Updated: 04/22/2018 13:20
Changes: 12/15/2006 09:36 (69), 04/22/2018 13:20 (7)
Complete: 🔍

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