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CVE-2015-5267

Date: February 21, 2016

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.

Language: PHP

Severity Score

Related Resources (12)

https://moodle.org/mod/forum/discuss.php?d=320291
https://github.com/moodle/moodle/commit/e4ac3879c2d1f8fe66caa74ff1544248bccef61e
http://www.securitytracker.com/id/1033619
https://github.com/moodle/moodle/commit/5337b2295237958c93b6c65fa595859aaa7bf257
https://nvd.nist.gov/vuln/detail/CVE-2015-5267
http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-50860
https://web.archive.org/web/20160323063809/http://www.securitytracker.com/id/1033619
https://github.com/moodle/moodle
http://www.openwall.com/lists/oss-security/2015/09/21/1
https://github.com/moodle/moodle/commit/6e8224365ffcdf328458ea7852dc62574e806119
https://github.com/moodle/moodle/commit/289bc7f9e3022918b4cfd2cc9851472f0cea2896
https://www.mend.io/vulnerability-database/CVE-2015-5267

Severity Score

Weakness Type (CWE)

Exposure of Sensitive Information to an Unauthorized Actor

CWE-200

Security Features

CWE-254

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): NONE
Availability (A): NONE

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): PARTIAL
Integrity (I): NONE
Availability (A): NONE
Additional information:

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