#VU42955 Permissions, Privileges, and Access Controls in Moodle - CVE-2013-1834

Vulnerability identifier: #VU42955

Vulnerability risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2013-1834

CWE-ID: CWE-264

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Moodle
Web applications / Other software

Vendor: moodle.org

Description

The vulnerability allows a remote #AU# to manipulate data.

notes/edit.php in Moodle 1.9.x through 1.9.19, 2.x through 2.1.10, 2.2.x before 2.2.8, 2.3.x before 2.3.5, and 2.4.x before 2.4.2 allows remote authenticated users to reassign notes via a modified (1) userid or (2) courseid field.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Moodle: 1.9 - 1.9.19, 2.0 - 2.0.9, 2.1 - 2.1.10, 2.2 - 2.2.7, 2.3 - 2.3.4, 2.4 - 2.4.1

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External links
https://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-37411
https://lists.fedoraproject.org/pipermail/package-announce/2013-April/101310.html
https://lists.fedoraproject.org/pipermail/package-announce/2013-April/101358.html
https://openwall.com/lists/oss-security/2013/03/25/2
https://moodle.org/mod/forum/discuss.php?d=225346

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.