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Published byRandolf Richard Modified over 9 years ago
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Copyright © 2000-2010, Solutionary, Inc. Current Adobe Exploits 2 different exploits in play “Here you have”, “Just for you” No Advisory – PDF Masking “David Leadbetter’s One Point Lesson” Adobe advisory CVE-2010-2883 Both delivered via email and web-site access Both result in unintended code execution additional mal-ware to be installed
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Copyright © 2000-2010, Solutionary, Inc. Current Adobe Exploits “Here you have”, “Just for you” W32/VBMania@MM - McAfee Classic bait-n-switch spam Click on PDF or WMV get SCR or EXE Shuts down security software Installs to Windows directory as CSRSS.EXE Drops.JPG.SCR files on network shares user has access to “David Leadbetter’s One Point Lesson” Advisory CVE-2010-2883 (empty as of last night) Actually uses PDF file – Very sophisticated ROP sled Executes Javascript within file to cause exploit Uses buffer overflow in cooltype.dll to get the ball rolling Utilizes stolen Verisign certificate issued to secure2.ccuu.com Bypasses ASLR & DEP using icucnv36.dll (Unicode) Creates several files including iso88591, igxfver.exe, wincrng.exe, hlp.cpl
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Copyright © 2000-2010, Solutionary, Inc. Mitigation Aggressive AV/AS on gateways and end-points Block attachments using gateways / IPS Exploit shell-code based blocking Attachment blocking http://*.scr, http://*.exe, etc.http://*.scrhttp://*.exe Subject line blocking Consider Alternatives: Foxitsoftware.com Smaller, tighter Has had security issues, very responsive to fixing them End-point Hardening Disable Javascript within Adobe Acrobat Edit -> Preferences -> Javascript -> Uncheck Vulnerability patching / end-point hardening Security Awareness Treat all unsolicited email with PDF or ANY attachments with extreme caution! Incident Identification / Response How quickly can you react? What steps will you take?
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Copyright © 2000-2010, Solutionary, Inc. Disabling Javascript in Acrobat
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