CVE-2005-2700 Auth bypass in n/a
Remote attackers can bypass SSL client certificate authentication restrictions in Apache mod_ssl when specific optional verification configurations are used.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2005-2700?
CVE-2005-2700 is a critical authentication bypass vulnerability in Apache Http Server, published on 6 Sep 2005. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
ssl_engine_kernel.c in mod_ssl before 2.8.24, when using "SSLVerifyClient optional" in the global virtual host configuration, does not properly enforce "SSLVerifyClient require" in a per-location context, which allows remote attackers to bypass intended access restrictions.
Which versions are affected by CVE-2005-2700?
It affects 3 products.
Products include Apache Http Server, Canonical Ubuntu Linux, Debian Debian Linux.
How do I fix CVE-2005-2700?
Upgrade to a fixed version.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2005-2700 being exploited?
There is no known exploitation of CVE-2005-2700 in the wild and no public exploit code.
Other vulnerabilities in Apache Http Server
Sources
Also known as DEBIAN-CVE-2005-2700, DSA-807-1, GHSA-6h5v-qgqr-fmq8.