OpenSSH < 3.7.1 Multiple Vulnerabilities
Critical Nessus Plugin ID 11837
SynopsisThe remote SSH service is affected by various memory bugs.
DescriptionAccording to its banner, the remote SSH server is running a version of OpenSSH older than 3.7.1. Such versions are vulnerable to a flaw in the buffer management functions that might allow an attacker to execute arbitrary commands on this host.
An exploit for this issue is rumored to exist.
Note that several distributions patched this hole without changing the version number of OpenSSH. Since Nessus solely relied on the banner of the remote SSH server to perform this check, this might be a false positive.
If you are running a RedHat host, make sure that the command :
rpm -q openssh-server
openssh-server-3.1p1-13 (RedHat 7.x) openssh-server-3.4p1-7 (RedHat 8.0) openssh-server-3.5p1-11 (RedHat 9)
SolutionUpgrade to OpenSSH 3.7.1 or later.