Sophos Anti-Virus 4.61.0 CHM File Parser access control

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.1$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Sophos Anti-Virus 4.61.0. This affects an unknown function of the component CHM File Parser. Executing a manipulation can lead to access control. This vulnerability is handled as CVE-2012-1458. Additionally, an exploit exists.

Detailsinfo

A vulnerability has been found in Sophos Anti-Virus 4.61.0 (Anti-Malware Software) and classified as critical. This vulnerability affects an unknown functionality of the component CHM File Parser. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-264. As an impact it is known to affect integrity. CVE summarizes:

The Microsoft CHM file parser in ClamAV 0.96.4 and Sophos Anti-Virus 4.61.0 allows remote attackers to bypass malware detection via a crafted reset interval in the LZXC header of a CHM file. NOTE: this may later be SPLIT into multiple CVEs if additional information is published showing that the error occurred independently in different CHM parser implementations.

The weakness was released 03/19/2012 by Suman Jana and Vitaly Shmatikov as confirmed mailinglist post (Bugtraq). The advisory is shared for download at seclists.org. The public release happened without coordination with the vendor. This vulnerability was named CVE-2012-1458 since 02/29/2012. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are unknown but a public exploit is available. The MITRE ATT&CK project declares the attack technique as T1068.

A public exploit has been developed by Suman Jana / Vitaly Shmatikov and been published immediately after the advisory. It is possible to download the exploit at seclists.org. It is declared as proof-of-concept. As 0-day the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 59726 (ClamAV < 0.97.5 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Misc.. The commercial vulnerability scanner Qualys is able to test this issue with plugin 165510 (SUSE Enterprise Linux Security Update for clamav (SUSE-SU-2012:0858-1)).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (74301), Tenable (59726), SecurityFocus (BID 52611†), OSVDB (80474†) and SecurityTracker (ID 1026840†). Entries connected to this vulnerability are available at VDB-4914, VDB-4915, VDB-4916 and VDB-4917. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.1

VulDB Base Score: 7.5
VulDB Temp Score: 7.1
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: Access control
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: Suman Jana / Vitaly Shmatikov
Reliability: 🔍
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 59726
Nessus Name: ClamAV < 0.97.5 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 71536
OpenVAS Name: FreeBSD Ports: clamav
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍
Fortigate IPS: 🔍

Timelineinfo

02/29/2012 🔍
03/19/2012 +19 days 🔍
03/19/2012 +0 days 🔍
03/19/2012 +0 days 🔍
03/20/2012 +1 days 🔍
03/21/2012 +1 days 🔍
03/23/2012 +2 days 🔍
03/25/2012 +2 days 🔍
04/02/2012 +8 days 🔍
11/12/2012 +224 days 🔍
03/22/2021 +3052 days 🔍

Sourcesinfo

Vendor: sophos.com

Advisory: seclists.org
Researcher: Suman Jana, Vitaly Shmatikov
Status: Confirmed

CVE: CVE-2012-1458 (🔍)
GCVE (CVE): GCVE-0-2012-1458
GCVE (VulDB): GCVE-100-4936

OVAL: 🔍

X-Force: 74301
SecurityFocus: 52611 - Multiple AntiVirus Products CVE-2012-1458 CHM File Scan Evasion Vulnerability
OSVDB: 80474
SecurityTracker: 1026840 - Clam AntiVirus Bugs Let Remote Users Bypass Malware Detection
Vulnerability Center: 37159 - Multiple AntiVirus Products Bypass Malware Detection - CVE-2012-1458, Medium

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 04/02/2012 10:59
Updated: 03/22/2021 10:43
Changes: 04/02/2012 10:59 (87), 04/20/2017 22:17 (5), 03/22/2021 10:43 (3)
Complete: 🔍
Cache ID: 216:7E0:103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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