A vulnerability was found in Avira Internet Security (affected version unknown). It has been declared as problematic. Affected by this vulnerability is an unknown functionality of the file avipbb.sys. The manipulation with an unknown input leads to a security check vulnerability. The CWE definition for the vulnerability is CWE-358. The product does not implement or incorrectly implements one or more security-relevant checks as specified by the design of a standardized algorithm, protocol, or technique. As an impact it is known to affect confidentiality, and integrity.

The weakness was published 10/20/2013 by Ahmad Moghimi as not defined exploit (Website). The advisory is shared at mallocat.com. The public release happened without involvement of Avira. An attack has to be approached locally. The successful exploitation needs a single authentication. Technical details and also a public exploit are known. MITRE ATT&CK project uses the attack technique T1211 for this issue.

A public exploit has been developed by Ahmad Moghimi and been published immediately after the advisory. It is possible to download the exploit at exploit-db.com. It is declared as proof-of-concept. We expect the 0-day to have been worth approximately $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 vulnerability database at Exploit-DB (29125). Similar entry is available at 11003.

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• Avira

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• Internet Security

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