search for: sandpfinal

...cbc http://www.cpni.gov.uk/Docs/Vulnerability_Advisory_SSH.txt https://packetstormsecurity.com/files/72061/Vulnerability_Advisory_SSH.txt.html http://www.cs.washington.edu/homes/yoshi/papers/TISSEC04/ https://homes.cs.washington.edu/~yoshi/papers/TISSEC04/ssh-acmccs.pdf http://isg.rhul.ac.uk/~kp/SandPfinal.pdf https://lwn.net/Articles/307873/ http://www.openssh.com/security.html http://www.openssh.com/txt/release-5.2 Security: * This release changes the default cipher order to prefer the AES CTR modes and the revised "arcfour256" mode to CBC mode ciphers that are susceptible to CP...

...com/txt/cbc.adv > But that should be already covered by: http://www.openssh.com/txt/release-5.2 We believe that these attacks are rendered infeasible by these changes. BTW: If you didn't know, here you find the details about the attacks (already in my link list): http://isg.rhul.ac.uk/~kp/SandPfinal.pdf I think it was unknown at the time OpenSSH 5.2 was released. E.g. some assumptions are wrong: After at most 2^14 connections ... With each new ssh connection I will have a new symmetrical key so the assumption is not feasible. Also: One of the main challenges for building an exploit based on...

OpenSSH 7.5 has just been released. It will be available from the mirrors listed at http://www.openssh.com/ shortly. OpenSSH is a 100% complete SSH protocol 2.0 implementation and includes sftp client and server support. OpenSSH also includes transitional support for the legacy SSH 1.3 and 1.5 protocols that may be enabled at compile-time. Once again, we would like to thank the OpenSSH community