CVE-2008-0555 Auth bypass in n/a

High 7.5 Published Updated

Remote attackers can bypass authentication by crafting a client certificate with specific characters in the Distinguished Name, affecting Apache-SSL.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2008-0555?

CVE-2008-0555 is a high-severity authentication bypass vulnerability in n/a, published on 4 Apr 2008. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The ExpandCert function in Apache-SSL before apache_1.3.41+ssl_1.59 does not properly handle (1) '/' and (2) '=' characters in a Distinguished Name (DN) in a client certificate, which might allow remote attackers to bypass authentication via a crafted DN that triggers overwriting of environment variables.

Weakness: CWE-287, CWE-20

Which versions are affected by CVE-2008-0555?

It affects 1 product.

Products include Apache-Ssl Apache-Ssl.

How do I fix CVE-2008-0555?

No fix has been published for CVE-2008-0555 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2008-0555 being exploited?

There is no known exploitation of CVE-2008-0555 in the wild and no public exploit code.

Sources

Also known as GHSA-7843-hchm-wf25.

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