NEW exploit for the WMF vulnerability



Just when you thought we had a good understanding of the recent zero-day WMF (Windows metafile exploit) it’s worse. Sans is reporting on a new variation on the exploit released today. They have gone to yellow (again) to warn people. Here are some details. This exploit was “made by the folks at metasploit and xfocus, together with a anonymous source.”


From SANS

The exploit generates files:

with a random size;
no .wmf extension, (.jpg), but could be any other image extension actually;
a random piece of junk in front of the bad call; carefully crafted to be larger than the MTU on an ethernet network;
a number of possible calls to run the exploit are listed in the source;
a random trailer

What makes it worse is that current IDS rules will likely not stop this new variation. Nor will current antivirus signatures. Also….

Judging from the source code, it will likely be difficult to develop very effective signatures due to the structures of the WMF files.

They suggested re-evaluating any defences against the bug and also mention the unofficial patch at http://www.hexblog.com/2005/12/wmf_vuln.html that I mentioned earlier today.

So in other words batten down the hatches it’s going to be a rocky start to the year in Computer security. Good luck.

–update 7PM EST–
The Security Fix has some coverage as well.

Related Posts

Blog Traffic Exchange Related Posts
  • How to Remove Anti-Virus Elite | Anti-Virus Elite Removal Guide Anti-Virus Elite is a rogue antivirus application. These rogue antivirus applications pose as a legitimate security application, but in reality is a scam to try to trick you out of money. They will find and claim that there are multiple security problems with your computer. They will claim that you......
  • Disinfecting a PC... part 1 This is the first in a several part series documenting the cleaning of an infected PC. The only real noteworthy item is that it was a dial-up only connection and was rather infested for that. (On par with some of the broadband connected pc's I've seen. It's also an interesting......
  • Network security - how safe is your network? Looking at ARP A while back I did a network security series and one of the points that I mentioned was that it's important to know what is normal for your network. In other words, what machines are NORMALLY connected, what services are normally running, etc. Well, I'm about to start a serious......
Blog Traffic Exchange Related Websites
  • Microsoft Security Advisory (2286198): Vulnerability in Windows Shell Could Allow Remote Code Execution Vulnerability in Windows Shell Could Allow Remote Code Execution Published: July 16, 2010 Version: 1.0 General Information Executive Summary Microsoft is investigating reports of limited, targeted attacks exploiting a vulnerability in Windows Shell, a component of Microsoft Windows. This advisory contains information about which versions of Windows are vulnerable as......
  • Free Wireless Access Can Be a Security Problem Free wireless hotspots is a huge security and privacy threat since hackers have the tools to really make life difficult.  Check out the video below. Connecting to a random WiFi hotspot is much like strolling into a bar in a strange part of town. Most likely you'll have a good......
  • Cyber Security DC Live Oct 14 2011 In case you missed it, check out last week's Facebook Live cybersecurity panel discussion featuring Facebook Chief Security Officer Joe Sullivan, National Cyber Security Alliance Executive Director Michael Kaiser and Facebook Security Guide co-author Linda McCarthy: Cyber Security DC Live Oct 14 2011 www.livestream.com Cyber Security DC Live Oct 14......
www.pdf24.org    Send article as PDF   

Similar Posts


See what happened this day in history from either BBC Wikipedia
Search:
Keywords:
Amazon Logo

Comments are closed.


Switch to our mobile site