CVE-2011-4587 Auth bypass in n/a
Remote attackers can bypass authentication and take over accounts if the password policy allows blank passwords due to improper zero-value handling.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2011-4587?
CVE-2011-4587 is a medium-severity authentication bypass vulnerability in Moodle Moodle, published on 20 Jul 2012. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
lib/moodlelib.php in Moodle 1.9.x before 1.9.15, 2.0.x before 2.0.6, and 2.1.x before 2.1.3 does not properly handle certain zero values in the password policy, which makes it easier for remote attackers to obtain access by leveraging the possible existence of user accounts that have unchangeable blank passwords.
Weakness: CWE-255
Which versions are affected by CVE-2011-4587?
It affects 1 product.
Products include Moodle Moodle.
How do I fix CVE-2011-4587?
Upgrade to a fixed version.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2011-4587 being exploited?
There is no known exploitation of CVE-2011-4587 in the wild and no public exploit code.
Other vulnerabilities in Moodle Moodle
- CVE-2006-4935 File upload in n/a
- CVE-2006-4936 Moodle does not properly validate module instance id
- CVE-2004-2233 Unknown "front page vulnerability with Moodle servers" for Moodle before 1.3.2 has unknown impact and attack vectors.
- CVE-2004-2235 Cross-site scripting in n/a
- CVE-2004-2236 Other in n/a
Sources
Also known as GHSA-mgqq-8x9v-jp4r.