Sophos Anti-Virus up to 4.04/5.2.0 CAB Archive memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.6$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in Sophos Anti-Virus up to 4.04/5.2.0. The impacted element is an unknown function of the component CAB Archive Handler. The manipulation leads to memory corruption. This vulnerability is uniquely identified as CVE-2006-0994. No exploit exists. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Sophos Anti-Virus up to 4.04/5.2.0 (Anti-Malware Software). This issue affects some unknown functionality of the component CAB Archive Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Multiple Sophos Anti-Virus products, including Anti-Virus for Windows 5.x before 5.2.1 and 4.x before 4.05, when cabinet file inspection is enabled, allows remote attackers to execute arbitrary code via a CAB file with "invalid folder count values," which leads to heap corruption.

The bug was discovered 05/08/2006. The weakness was disclosed 05/09/2006 with Zero Day Initiative (Website). It is possible to read the advisory at sophos.com. The identification of this vulnerability is CVE-2006-0994 since 03/03/2006. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available.

It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $25k-$100k.

Applying a patch is able to eliminate this problem. The bugfix is ready for download at sophos.com. A possible mitigation has been published 2 days after the disclosure of the vulnerability. Attack attempts may be identified with Snort ID 6504. In this case the pattern MSCF is used for detection. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 4185.

The vulnerability is also documented in the databases at X-Force (26305), SecurityFocus (BID 17876†), OSVDB (25454†), Secunia (SA20028†) and SecurityTracker (ID 1016041†). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.6

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
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: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
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: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: sophos.com

Snort ID: 6504
Snort Message: WEB-CLIENT Sophos Anti-Virus CAB file overflow attempt
Snort Pattern: 🔍
TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

SourceFire IPS: 🔍
PaloAlto IPS: 🔍
Fortigate IPS: 🔍

Timelineinfo

03/03/2006 🔍
05/08/2006 +66 days 🔍
05/08/2006 +0 days 🔍
05/08/2006 +0 days 🔍
05/08/2006 +0 days 🔍
05/09/2006 +1 days 🔍
05/09/2006 +0 days 🔍
05/09/2006 +0 days 🔍
05/10/2006 +0 days 🔍
05/10/2006 +0 days 🔍
05/10/2006 +0 days 🔍
12/06/2007 +574 days 🔍
08/01/2019 +4256 days 🔍

Sourcesinfo

Vendor: sophos.com

Advisory: sophos.com
Researcher: http://www.zerodayinitiative.com
Organization: Zero Day Initiative
Status: Confirmed

CVE: CVE-2006-0994 (🔍)
GCVE (CVE): GCVE-0-2006-0994
GCVE (VulDB): GCVE-100-2207
X-Force: 26305 - Sophos Anti-Virus CAB file parsing buffer overflow, High Risk
SecurityFocus: 17876 - Sophos Anti-Virus CAB File Scanning Remote Heap Overflow Vulnerability
Secunia: 20028 - Sophos Anti-Virus Cabinet File Processing Memory Corruption, Highly Critical
OSVDB: 25454 - Sophos Anti-Virus Cabinet File Folder Count Memory Corruption
SecurityTracker: 1016041
Vulnerability Center: 17017 - Multiple Sophos Anti-Virus Products Remote Code Execution via a CAB File, High
Vupen: ADV-2006-1730

Entryinfo

Created: 05/10/2006 14:42
Updated: 08/01/2019 10:13
Changes: 05/10/2006 14:42 (97), 08/01/2019 10:13 (1)
Complete: 🔍
Cache ID: 216::103

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