Input validation error in Moodle - CVE-2013-2083
Published: May 25, 2013 / Updated: August 11, 2020
Vulnerability identifier: #VU42829
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2013-2083
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: moodle.org
Affected software:
Moodle
Moodle
Detailed vulnerability description
The vulnerability allows a remote non-authenticated attacker to manipulate data.
The MoodleQuickForm class in lib/formslib.php in Moodle through 2.1.10, 2.2.x before 2.2.10, 2.3.x before 2.3.7, and 2.4.x before 2.4.4 does not properly handle a certain array-element syntax, which allows remote attackers to bypass intended form-data filtering via a crafted request.
How to mitigate CVE-2013-2083
Install update from vendor's website.
Sources
- http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-38885
- http://lists.fedoraproject.org/pipermail/package-announce/2013-May/106965.html
- http://lists.fedoraproject.org/pipermail/package-announce/2013-May/106988.html
- http://lists.fedoraproject.org/pipermail/package-announce/2013-May/107026.html
- http://openwall.com/lists/oss-security/2013/05/21/1
- https://moodle.org/mod/forum/discuss.php?d=228935