Date: Wed, 12 Aug 2015 10:39:00 +0200 From: Adam Maris <amaris@...hat.com> To: oss-security@...ts.openwall.com Subject: Re: CVE request - OpenSSH 6.9 PAM privilege separation vulnerabilities On 11/08/15 20:40, Moritz Jodeit wrote: > Hello list, > > could you please assign two CVE IDs for the following two security > issues fixed in OpenSSH 7.0 (directly taken from the release notes ): > > * sshd(8): Portable OpenSSH only: Fixed a privilege separation > weakness related to PAM support. Attackers who could successfully > compromise the pre-authentication process for remote code > execution and who had valid credentials on the host could > impersonate other users. Reported by Moritz Jodeit. > > * sshd(8): Portable OpenSSH only: Fixed a use-after-free bug > related to PAM support that was reachable by attackers who could > compromise the pre-authentication process for remote code > execution. Also reported by Moritz Jodeit. > >  http://www.openssh.com/txt/release-7.0 > > Thank you, > Moritz Could you assign CVEs for the other two issues as well? * sshd(8): fix circumvention of MaxAuthTries using keyboard- interactive authentication. By specifying a long, repeating keyboard-interactive "devices" string, an attacker could request the same authentication method be tried thousands of times in a single pass. The LoginGraceTime timeout in sshd(8) and any authentication failure delays implemented by the authentication mechanism itself were still applied. Found by Kingcope. * sshd(8): OpenSSH 6.8 and 6.9 incorrectly set TTYs to be world- writable. Local attackers may be able to write arbitrary messages to logged-in users, including terminal escape sequences. Reported by Nikolay Edigaryev. Or have they CVEs already? Thanks. -- Adam Maris / Red Hat Product Security
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