Yara Rule for CVE-2010-1297

rule FlashNewfunction: decodedPDF
{
   meta:  
      ref = "CVE-2010-1297"
      hide = true
      impact = 5 
   strings:
      $unescape = "unescape" fullword nocase
      $shellcode = /%u[A-Fa-f0-9]{4}/
      $shellcode5 = /(%u[A-Fa-f0-9]{4}){5}/
      $cve20101297 = /\/Subtype ?\/Flash/
   condition:
      ($unescape and $shellcode and $cve20101297) or ($shellcode5 and $cve20101297)
}

Yet Another Adobe Bug

Nothing much but YES to agree with Didier Stevens with his statement:

PDF + JS = OMG

Yerp.. there is another vulnerability (CVE-2009-3459) in Adobe Reader and Acrobat today (GMT +8) and so far it is still 0 day..

*panic panic* What to do?

  1. Disable JavaScript support in Adobe Reader and Acrobat
  2. Enable DEP (for Windows)
  3. Use NoScript
  4. Use alternative PDF reader like Foxit, Gnome Document Viewer, yada yada..
  5. Don’t be a lame by opening unknown PDF attachment

Research shows that 80% of Web users running unpatched versions of Flash/Acrobat

According to a research published by Trusteer earlier this month, 79.5% of the 2.5 million users of their Rapport security service run a vulnerable version of Adobe Flash, with 83.5% also running a vulnerable version of Acrobat.

The company has also criticized Adobe by insisting that their update mechanism “does not meet the requirements of a system that is used by 99% of users on the Internet and is highly targeted by criminals“, but is praising the update mechanism of Google’s Chrome and Firefox, whose silent updates close the window of opportunity for malicious attackers to take advantage of.

[Read more HERE]

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