Monday, September 28, 2009

SMB2 Code Execution Module Released for Metasploit

Via Metasploit Blog -

This [Sunday] morning Stephen Fewer released his long-awaited SMB2 code execution module for the Metasploit Framework. He plans to publish a whitepaper in the near future that discusses the exploit technique and the newly written Vista/2008 ring0 to ring3 stager code. This module is available in the 3.3-dev tree and supports Vista SP1/SP2 and 2008 SP1/SP2 (but not R2) with the same offsets and addresses. Keep in mind that the best workaround for this still-unpatched flaw is to disable the SMB2 protocol.

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According to the exploit module...
This module exploits an out of bounds function table dereference in the SMB request validation code of the SRV2.SYS driver included with Windows Vista, Windows 7 release candidates (not RTM), and Windows 2008 Server prior to R2. Windows Vista without SP1 does not seem affected by this flaw.

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