ESET NOD32 Antivirus文件解析引擎 拒绝服务攻击漏洞

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漏洞ID 1189709 漏洞类型
发布时间 2007-07-25 更新时间 2007-07-26
CVE编号 CVE-2007-3972 CNNVD-ID CNNVD-200707-419
漏洞平台 N/A CVSS评分 5.0
|漏洞来源
https://cxsecurity.com/issue/WLB-2007070079
http://www.cnnvd.org.cn/web/xxk/ldxqById.tag?CNNVD=CNNVD-200707-419
|漏洞详情
NOD32Anti-Virus是美国ESET公司开发的杀毒软件。NOD32的文件解析引擎存在拒绝服务攻击漏洞,在解析ASPACK和FSG压缩的文件时可能将0用作除数,导致拒绝服务。
|漏洞EXP
n.runs AG					   
http://www.nruns.com/			              security(at)nruns.com
n.runs-SA-2007.018                                           20-Jul-2007
________________________________________________________________________

Vendor:	               ESET, http://eset.com
Affected Products:	ESET NOD32 Antivirus
Vulnerability:         Denial of Service (remote) 
Risk:			MODERATE

________________________________________________________________________

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:

- Divide by Zero in ASPACK and FSG packed files parsing

Impact:

This problem can lead to remote denial of service 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.
|参考资料

来源:BID
名称:24988
链接:http://www.securityfocus.com/bid/24988
来源:BUGTRAQ
名称:200707202007-07-20-n.runs-SA-2007.018-NOD32AntivirusASPACKandFSGparsingDividebyZeroAdvisory
链接:http://www.securityfocus.com/archive/1/archive/1/474246/100/0/threaded
来源:www.eset.com
链接:http://www.eset.com/joomla/index.php?option=com_content&task=view&id=3469&Itemid=26
来源:SECUNIA
名称:26124
链接:http://secunia.com/advisories/26124
来源:MISC
链接:http://www.nruns.com/%5Bn.runs-SA-2007.018%5D%20-%20NOD32%20Antivirus%20ASPACK%20and%20FSG%20parsing%20Divide%20by%20Zero%20Advisory.txt
来源:MISC
链接:http://www.nruns.com/%5Bn.runs-SA-2007.018%5D%20-%20NOD32%20Antivirus%20ASPACK%20and%20FSG%20parsing%20Divide%20by%20Zero%20Advisory.pdf
来源:OSVDB
名称:37978
链接:http://osvdb.org/37978
来源:XF
名称:nod32-aspack-fsg-dos(35524)
链接:http://xforce.iss.net/xforce/xfdb/35524
来源:VUPEN
名称:ADV-2007-2602
链接:http://www.frsirt.com/english/advisories/2007/2602
来源:SREASON
名称:2924
链接:http://securityreason.com/securityalert/2924