CVE-2007-0844 Auth bypass in n/a
Attackers can bypass authentication restrictions in pam_ssh by entering a non-blank passphrase for keys requiring a blank one, allowing unauthorized access.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2007-0844?
CVE-2007-0844 is a medium-severity authentication bypass vulnerability in n/a, published on 8 Feb 2007. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The auth_via_key function in pam_ssh.c in pam_ssh before 1.92, when the allow_blank_passphrase option is disabled, allows remote attackers to bypass authentication restrictions and use private encryption keys requiring a blank passphrase by entering a non-blank passphrase.
Which versions are affected by CVE-2007-0844?
It affects 1 product.
Products include Pam Ssh Pam Ssh.
How do I fix CVE-2007-0844?
Upgrade to a fixed version.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2007-0844 being exploited?
There is no known exploitation of CVE-2007-0844 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2007-0844, GHSA-rqfq-63f3-qjmw.