CVE-2012-2317 Auth bypass in n/a
Remote attackers can bypass authentication in applications using PHP crypt with empty salts due to improper handling in Debian/Ubuntu patches.
- 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-2012-2317?
CVE-2012-2317 is a medium-severity authentication bypass vulnerability in Canonical Ubuntu Linux, published on 7 Aug 2012. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The Debian php_crypt_revamped.patch patch for PHP 5.3.x, as used in the php5 package before 5.3.3-7+squeeze4 in Debian GNU/Linux squeeze, the php5 package before 5.3.2-1ubuntu4.17 in Ubuntu 10.04 LTS, and the php5 package before 5.3.5-1ubuntu7.10 in Ubuntu 11.04, does not properly handle an empty salt string, which might allow remote attackers to bypass authentication by leveraging an application that relies on the PHP crypt function to choose a salt for password hashing.
Weakness: CWE-310
Which versions are affected by CVE-2012-2317?
It affects 4 products.
Products include Canonical Php5, Canonical Ubuntu Linux, Debian Debian Linux, Debian Php5-Common.
How do I fix CVE-2012-2317?
No fix has been published for CVE-2012-2317 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-2012-2317 being exploited?
There is no known exploitation of CVE-2012-2317 in the wild and no public exploit code.
Sources
Also known as GHSA-qcwp-wm5p-xc8j.