Drupal 6.x before 6.29 and 7.x before 7.24 uses the PHP mt_rand function to generate random numbers, which uses predictable seeds and allows remote attackers to predict security strings and bypass intended restrictions via a brute force attack.
2013-12-07T21:55:10.077
2025-04-11T00:51:21.963
Deferred
CVSSv2: 6.8 (MEDIUM)
AV:N/AC:M/Au:N/C:P/I:P/A:P
8.6
6.4
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | drupal | drupal | 7.0 | Yes |
| Application | drupal | drupal | 7.0 | Yes |
| Application | drupal | drupal | 7.0 | Yes |
| Application | drupal | drupal | 7.0 | Yes |
| Application | drupal | drupal | 7.0 | Yes |
| Application | drupal | drupal | 7.0 | Yes |
| Application | drupal | drupal | 7.0 | Yes |
| Application | drupal | drupal | 7.0 | Yes |
| Application | drupal | drupal | 7.0 | Yes |
| Application | drupal | drupal | 7.0 | Yes |
| Application | drupal | drupal | 7.0 | Yes |
| Application | drupal | drupal | 7.0 | Yes |
| Application | drupal | drupal | 7.0 | Yes |
| Application | drupal | drupal | 7.0 | Yes |
| Application | drupal | drupal | 7.0 | Yes |
| Application | drupal | drupal | 7.0 | Yes |
| Application | drupal | drupal | 7.1 | Yes |
| Application | drupal | drupal | 7.2 | Yes |
| Application | drupal | drupal | 7.3 | Yes |
| Application | drupal | drupal | 7.4 | Yes |
| Application | drupal | drupal | 7.5 | Yes |
| Application | drupal | drupal | 7.6 | Yes |
| Application | drupal | drupal | 7.7 | Yes |
| Application | drupal | drupal | 7.8 | Yes |
| Application | drupal | drupal | 7.9 | Yes |
| Application | drupal | drupal | 7.10 | Yes |
| Application | drupal | drupal | 7.11 | Yes |
| Application | drupal | drupal | 7.12 | Yes |
| Application | drupal | drupal | 7.13 | Yes |
| Application | drupal | drupal | 7.14 | Yes |
| Application | drupal | drupal | 7.15 | Yes |
| Application | drupal | drupal | 7.16 | Yes |
| Application | drupal | drupal | 7.17 | Yes |
| Application | drupal | drupal | 7.18 | Yes |
| Application | drupal | drupal | 7.19 | Yes |
| Application | drupal | drupal | 7.20 | Yes |
| Application | drupal | drupal | 7.21 | Yes |
| Application | drupal | drupal | 7.22 | Yes |
| Application | drupal | drupal | 7.23 | Yes |
| Application | drupal | drupal | 7.x-dev | Yes |
| Application | drupal | drupal | 6.0 | Yes |
| Application | drupal | drupal | 6.0 | Yes |
| Application | drupal | drupal | 6.0 | Yes |
| Application | drupal | drupal | 6.0 | Yes |
| Application | drupal | drupal | 6.0 | Yes |
| Application | drupal | drupal | 6.0 | Yes |
| Application | drupal | drupal | 6.0 | Yes |
| Application | drupal | drupal | 6.0 | Yes |
| Application | drupal | drupal | 6.0 | Yes |
| Application | drupal | drupal | 6.0 | Yes |
| Application | drupal | drupal | 6.1 | Yes |
| Application | drupal | drupal | 6.2 | Yes |
| Application | drupal | drupal | 6.3 | Yes |
| Application | drupal | drupal | 6.4 | Yes |
| Application | drupal | drupal | 6.5 | Yes |
| Application | drupal | drupal | 6.6 | Yes |
| Application | drupal | drupal | 6.7 | Yes |
| Application | drupal | drupal | 6.8 | Yes |
| Application | drupal | drupal | 6.9 | Yes |
| Application | drupal | drupal | 6.10 | Yes |
| Application | drupal | drupal | 6.11 | Yes |
| Application | drupal | drupal | 6.12 | Yes |
| Application | drupal | drupal | 6.13 | Yes |
| Application | drupal | drupal | 6.14 | Yes |
| Application | drupal | drupal | 6.15 | Yes |
| Application | drupal | drupal | 6.16 | Yes |
| Application | drupal | drupal | 6.17 | Yes |
| Application | drupal | drupal | 6.18 | Yes |
| Application | drupal | drupal | 6.19 | Yes |
| Application | drupal | drupal | 6.20 | Yes |
| Application | drupal | drupal | 6.21 | Yes |
| Application | drupal | drupal | 6.22 | Yes |
| Application | drupal | drupal | 6.23 | Yes |
| Application | drupal | drupal | 6.24 | Yes |
| Application | drupal | drupal | 6.25 | Yes |
| Application | drupal | drupal | 6.26 | Yes |
| Application | drupal | drupal | 6.27 | Yes |
| Application | drupal | drupal | 6.28 | Yes |