NOD32 Antivirus CAB parsing Arbitrary Code Execution Advisory

2007.07.26
Risk: High
Local: Yes
Remote: No
CWE: CWE-Other


CVSS Base Score: 5/10
Impact Subscore: 2.9/10
Exploitability Subscore: 10/10
Exploit range: Remote
Attack complexity: Low
Authentication: No required
Confidentiality impact: None
Integrity impact: Partial
Availability impact: None

n.runs AG http://www.nruns.com/ security(at)nruns.com n.runs-SA-2007.016 20-Jul-2007 ________________________________________________________________________ Vendor: ESET, http://eset.com Affected Products: ESET NOD32 Antivirus Vulnerability: Arbitrary Code Execution (remote) Risk: HIGH ________________________________________________________________________ Vendor communication: 2007/05/07 Initial notification to ESET 2007/05/07 ESET Response 2007/05/07 PoC files sent to ESET 2007/05/10 ESET validate the vulnerability 2007/05/24 ESET made available the updates ________________________________________________________________________ Overview: Founded in 1992, ESET is a global provider of security software for enterprises and consumers. ESET??s award-winning, antivirus software system, NOD32, provides real-time protection from known and unknown viruses, spyware, rootkits and other malware. NOD32 offers the smallest, fastest and most advanced protection available, with more Virus Bulletin 100% Awards than any other antivirus product. ESET was named to Deloitte??s Technology Fast 500 five years running, and has an extensive partner network, including corporations like Canon, Dell and Microsoft. ESET has offices in Bratislava, SK; Bristol, U.K.; Buenos Aires, AR; Prague, CZ; San Diego, USA; and is represented worldwide in more than 100 countries. The broad product platform protects Windows, Linux, Novell and MS DOS machines. Description: A remotely exploitable vulnerability has been found in the file parsing engine. In detail, the following flaw was determined: - Heap Corruption through Race Condition in .CAB file parsing Impact: This problem can lead to remote arbitrary code execution if an attacker carefully crafts a file that exploits the aforementioned vulnerability. The vulnerability is present in NOD32 Antivirus software versions prior to the update v.2.2289. Solution: The vulnerability was reported on May 07 and an update has been issued on May 24 to solve this vulnerability through the regular update mechanism. ________________________________________________________________________ Credit: Bugs found by Sergio Alvarez of n.runs AG. ________________________________________________________________________ References: http://www.eset.com/joomla/index.php?option=com_content&task=view&id=346 9&Itemid=26 This Advisory and Upcoming Advisories: http://www.nruns.com/security_advisory.php http://www.nruns.com/parsing-engines-advisories.php ________________________________________________________________________ Unaltered electronic reproduction of this advisory is permitted. For all other reproduction or publication, in printing or otherwise, contact security (at) nruns (dot) com [email concealed] for permission. Use of the advisory constitutes acceptance for use in an "as is" condition. All warranties are excluded. In no event shall n.runs be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if n.runs has been advised of the possibility of such damages. Copyright 2007 n.runs AG. All rights reserved. Terms of apply.


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