Full Disclosure mailing list archives
Re: Working exploit for Debian generated SSH Keys
From: Valdis.Kletnieks () vt edu
Date: Tue, 20 May 2008 11:51:59 -0400
On Mon, 19 May 2008 13:51:29 EDT, "Garrett M. Groff" said:
Generating pseudo-random numbers isn't hard given a good API, but writing that API is non-trivial (assuming you want high entropy/low predictability). And, apparently, screwing up that API is also very easy.
Of course, if you're trying to write a PoC, you don't need to know how to code the API - all you need to do is grab the source for the key-tester that got shipped as part of the OpenSSH patch and snarf out the nicely enumerated list of all vulnerable keys, and use that list as the brute-forcer, 6 per connection attempt. ;)
Attachment:
_bin
Description:
_______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/
Current thread:
- Re: Working exploit for Debian generated SSH Keys, (continued)
- Re: Working exploit for Debian generated SSH Keys Fredrick Diggle (May 18)
- Re: Working exploit for Debian generated SSH Keys reepex (May 18)
- Re: Working exploit for Debian generated SSH Keys Ronald van der Westen (May 19)
- Re: Working exploit for Debian generated SSH Keys nicolas vigier (May 19)
- Re: Working exploit for Debian generated SSH Keys Skratz0r (May 19)
- Re: Working exploit for Debian generated SSH Keys Garrett M. Groff (May 19)
- Re: Working exploit for Debian generated SSH Keys Tonnerre Lombard (May 20)
- Re: Working exploit for Debian generated SSH Keys Michael Holstein (May 20)
- Re: Working exploit for Debian generated SSH Keys Tonnerre Lombard (May 23)
- Re: Working exploit for Debian generated SSH Keys Garrett M. Groff (May 20)
- Re: Working exploit for Debian generated SSH Keys Valdis . Kletnieks (May 20)