ID

VAR-200904-0511

CVE

CVE-2009-1348

TITLE

McAfee VirusScan Used in products such as AV Vulnerabilities that can be avoided in the engine

DESCRIPTION

The AV engine before DAT 5600 in McAfee VirusScan, Total Protection, Internet Security, SecurityShield for Microsoft ISA Server, Security for Microsoft Sharepoint, Security for Email Servers, Email Gateway, and Active Virus Defense allows remote attackers to bypass virus detection via (1) an invalid Headflags field in a malformed RAR archive, (2) an invalid Packsize field in a malformed RAR archive, or (3) an invalid Filelength field in a malformed ZIP archive. Multiple McAfee products are prone to a vulnerability that may allow certain compressed archives to bypass the scan engine. Successful exploits will allow attackers to distribute files containing malicious code that the antivirus application will fail to detect. The issue affects all McAfee software that uses DAT files. ---------------------------------------------------------------------- Secunia is pleased to announce the release of the annual Secunia report for 2008. Highlights from the 2008 report: * Vulnerability Research * Software Inspection Results * Secunia Research Highlights * Secunia Advisory Statistics Request the full 2008 Report here: http://secunia.com/advisories/try_vi/request_2008_report/ Stay Secure, Secunia ---------------------------------------------------------------------- TITLE: McAfee Products Archive Handling Security Bypass SECUNIA ADVISORY ID: SA34949 VERIFY ADVISORY: http://secunia.com/advisories/34949/ DESCRIPTION: Some weaknesses have been reported in various McAfee products, which can be exploited by malware to bypass the scanning functionality. The weaknesses are caused due to errors in the handling of archive file formats (e.g. SOLUTION: Update .DAT files to DAT 5600 or later. http://www.mcafee.com/apps/downloads/security_updates/dat.asp PROVIDED AND/OR DISCOVERED BY: * Thierry Zoller * The vendor also credits Mickael Roger. ORIGINAL ADVISORY: McAfee: https://kc.mcafee.com/corporate/index?page=content&id=SB10001&actp=LIST_RECENT Thierry Zoller: http://blog.zoller.lu/2009/04/mcafee-multiple-bypassesevasions-ziprar.html ---------------------------------------------------------------------- About: This Advisory was delivered by Secunia as a free service to help everybody keeping their systems up to date against the latest vulnerabilities. Subscribe: http://secunia.com/advisories/secunia_security_advisories/ Definitions: (Criticality, Where etc.) http://secunia.com/advisories/about_secunia_advisories/ Please Note: Secunia recommends that you verify all advisories you receive by clicking the link. Secunia NEVER sends attached files with advisories. Secunia does not advise people to install third party patches, only use those supplied by the vendor. ---------------------------------------------------------------------- Unsubscribe: Secunia Security Advisories http://secunia.com/sec_adv_unsubscribe/?email=packet%40packetstormsecurity.org ---------------------------------------------------------------------- . ________________________________________________________________________ From the low-hanging-fruit-department - Mcafee multiple generic evasions ________________________________________________________________________ Release mode: Coordinated but limited disclosure. Ref : TZO-182009 - Mcafee multiple generic evasions WWW : http://blog.zoller.lu/2009/04/mcafee-multiple-bypassesevasions-ziprar.html Vendor : http://www.mcafee.com Status : Patched CVE : CVE-2009-1348 (provided by mcafee) https://kc.mcafee.com/corporate/index?page=content&id=SB10001&actp=LIST_RECENT Security notification reaction rating : very good Notification to patch window : +-27 days (Eastern holidays in between) Disclosure Policy : http://blog.zoller.lu/2008/09/notification-and-disclosure-policy.html Affected products : - McAfee VirusScan\xae Plus 2009 - McAfee Total Protection\x99 2009 - McAfee Internet Security - McAfee VirusScan USB - McAfee VirusScan Enterprise - McAfee VirusScan Enterprise Linux - McAfee VirusScan Enterprise for SAP - McAfee VirusScan Enterprise for Storage - McAfee VirusScan Commandline - Mcafee SecurityShield for Microsoft ISA Server - Mcafee Security for Microsoft Sharepoint - Mcafee Security for Email Servers - McAfee Email Gateyway - McAfee Total Protection for Endpoint - McAfee Active Virus Defense - McAfee Active VirusScan It is unkown whether SaaS were affected (tough likely) : - McAfee Email Security Service - McAfee Total Protection Service Advanced I. Background ~~~~~~~~~~~~~ Quote: "McAfee proactively secures systems and networks from known and as yet undiscovered threats worldwide. Home users, businesses, service providers, government agencies, and our partners all trust our unmatched security expertise and have confidence in our comprehensive and proven solutions to effectively block attacks and prevent disruptions." II. Description ~~~~~~~~~~~~~~~ The parsing engine can be bypassed by a specially crafted and formated RAR (Headflags and Packsize),ZIP (Filelenght) archive. III. Impact ~~~~~~~~~~~ A general description of the impact and nature of AV Bypasses/evasions can be read at : http://blog.zoller.lu/2009/04/case-for-av-bypassesevasions.html The bug results in denying the engine the possibility to inspect code within RAR and ZIP archives. There is no inspection of the content at all and hence the impossibility to detect malicious code. IV. Disclosure timeline ~~~~~~~~~~~~~~~~~~~~~~~~~ DD/MM/YYYY 04/04/2009 : Send proof of concept RAR I, description the terms under which I cooperate and the planned disclosure date 06/04/2009 : Send proof of concept RAR II, description the terms under which I cooperate and the planned disclosure date 06/04/2009 : Mcafee acknowledges receipt and reproduction of RAR I, ack acknowledges receipt of RARII 10/04/2009 : Send proof of concept ZIP I, description the terms under which I cooperate and the planned disclosure date 21/04/2009 : Mcafee provides CVE number CVE-2009-1348 28/04/2009 : Mcafee informs me that the patch might be released on the 29th 29/04/2009 : Mcafee confirms patch release and provides URL https://kc.mcafee.com/corporate/index?page=content&id=SB10001&actp=LIST_RECENT 29/04/2009 : Ask for affected versions 29/04/2009 : Mcafee replies " This issue does affect all vs engine products, including both gateway and endpoint" _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/. Description ~~~~~~~~~~~~~~~ Improper parsing of the PDF structure leads to evasion of detection of malicious PDF documents at scantime and runtime. This has been tested with several malicious PDF files and represents a generic evasion of all PDF signatures and heuristics. General information about evasion/bypasses can be found at : http://blog.zoller.lu/2009/04/case-for-av-bypassesevasions.html III. Impact ~~~~~~~~~~~ Known PDF exploits/malware may evade signature detection, 0day exploits may evade heuristics. Disclosure timeline ~~~~~~~~~~~~~~~~~~~~~~~~~ DD.MM.YYYY 01.06.2009 - Reported 20.10.2009 - McAfee informed us that they published the advisory on their website < waiting for others vendors to patch > 27.10.2009 - G-SEC releases this advisory About G-SEC ~~~~~~~~~~~ G-SEC\x99 is a vendor independent luxemburgish led IT security consulting group. More information available at : http://www.g-sec.lu/ _______________________________________________ Full-Disclosure - We believe in it. ---------------------------------------------------------------------- Do you have VARM strategy implemented? (Vulnerability Assessment Remediation Management) If not, then implement it through the most reliable vulnerability intelligence source on the market. Implement it through Secunia

AFFECTED PRODUCTS

CVSS

PROBLEMTYPE DATA

THREAT TYPE

network

TYPE

input validation

CONFIGURATIONS

PATCH

EXTERNAL IDS

REFERENCES

CREDITS

Thierry Zoller and Mickael Roger

SOURCES

LAST UPDATE DATE

2024-11-23T22:09:03.525000+00:00

SOURCES UPDATE DATE

SOURCES RELEASE DATE