________________________________________________________________________ >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® Plus 2009 - McAfee Total Protection™ 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"
