CVE-2015-5267 Moodle uses predictable password-recovery tokens
Remote attackers can predict password-recovery tokens due to weak random number generation, potentially leading to account takeover.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2015-5267?
CVE-2015-5267 is a high-severity vulnerability in Moodle Moodle, published on 22 Feb 2016. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
lib/moodlelib.php in Moodle through 2.6.11, 2.7.x before 2.7.10, 2.8.x before 2.8.8, and 2.9.x before 2.9.2 relies on the PHP mt_rand function to implement the random_string and complex_random_string functions, which makes it easier for remote attackers to predict password-recovery tokens via a brute-force approach.
Which versions are affected by CVE-2015-5267?
6 open source packages ship an affected version, including moodle/moodle. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
moodle/moodle Packagist | All versions | 2.7.10 |
moodle/moodle Packagist | All versions | 2.7.10 |
moodle/moodle Packagist | From 2.8.0 | 2.8.8 |
moodle/moodle Packagist | From 2.8.0 | 2.8.8 |
moodle/moodle Packagist | From 2.9.0 | 2.9.2 |
moodle/moodle Packagist | From 2.9.0 | 2.9.2 |
Products include Moodle Moodle.
How do I fix CVE-2015-5267?
Upgrade moodle/moodle to a fixed version for your release line: 2.7.10, 2.8.8 or 2.9.2.
Is CVE-2015-5267 being exploited?
There is no known exploitation of CVE-2015-5267 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-382v-gxj9-ffhc.