Symantec Endpoint Protection TAR File Parser access control

Summaryinfo

A vulnerability, which was classified as critical, was found in Symantec Endpoint Protection. Affected is an unknown function of the component TAR File Parser. Such manipulation leads to access control. This vulnerability is documented as CVE-2012-1421. Additionally, an exploit exists.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Symantec Endpoint Protection (Anti-Malware Software) (affected version not known). Affected by this issue is some unknown functionality of the component TAR File Parser. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-264. Impacted is integrity. CVE summarizes:

The TAR file parser in Quick Heal (aka Cat QuickHeal) 11.00, Norman Antivirus 6.06.12, Rising Antivirus 22.83.00.03, and AVEngine 20101.3.0.103 in Symantec Endpoint Protection 11 allows remote attackers to bypass malware detection via a POSIX TAR file with an initial MSCF character sequence. NOTE: this may later be SPLIT into multiple CVEs if additional information is published showing that the error occurred independently in different TAR 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 is handled as CVE-2012-1421 since 02/29/2012. The attack may be launched remotely. No form of authentication is required for 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. The exploit is available at seclists.org. It is declared as proof-of-concept. As 0-day the estimated underground price was around $25k-$100k.

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 OSVDB (80397†) and SecurityTracker (ID 1026840†). Entries connected to this vulnerability are available at VDB-4914, VDB-4915, VDB-4917 and VDB-4918. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• Anti-Malware Software

Vendor

• Symantec

Name

• Endpoint Protection

License

• commercial

Website

• Vendor: https://www.symantec.com/

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Once again VulDB remains the best source for vulnerability data.

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