Vulnerability CVE-2014-2653
Published: 2014-03-27

Description:
The verify_host_key function in sshconnect.c in the client in OpenSSH 6.6 and earlier allows remote servers to trigger the skipping of SSHFP DNS RR checking by presenting an unacceptable HostCertificate.

See advisories in our WLB2 database:
Topic
Author
Date
Med.
OpenSSH 6.6 bypass SSHFP DNS RR checking by HostCertificate
Matthew Vernon
28.03.2014

CVSS2 => (AV:N/AC:M/Au:N/C:P/I:P/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5.8/10
4.9/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
None
Affected software
Openbsd -> Openssh 

 References:
http://advisories.mageia.org/MGASA-2014-0166.html
http://aix.software.ibm.com/aix/efixes/security/openssh_advisory4.asc
http://lists.fedoraproject.org/pipermail/package-announce/2014-June/134026.html
http://lists.fedoraproject.org/pipermail/package-announce/2014-May/133537.html
http://marc.info/?l=bugtraq&m=141576985122836&w=2
http://openwall.com/lists/oss-security/2014/03/26/7
http://rhn.redhat.com/errata/RHSA-2014-1552.html
http://rhn.redhat.com/errata/RHSA-2015-0425.html
http://secunia.com/advisories/59855
http://www.debian.org/security/2014/dsa-2894
http://www.mandriva.com/security/advisories?name=MDVSA-2014:068
http://www.mandriva.com/security/advisories?name=MDVSA-2015:095
http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html
http://www.securityfocus.com/bid/66459
http://www.ubuntu.com/usn/USN-2164-1
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=742513
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