#VU42956 Information disclosure in Moodle - CVE-2013-1835

Vulnerability identifier: #VU42956

Vulnerability risk: Low

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

CVE-ID: CVE-2013-1835

CWE-ID: CWE-200

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Moodle
Web applications / Other software

Vendor: moodle.org

Description

The vulnerability allows a remote #AU# to gain access to sensitive information.

Moodle 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 administrators to obtain sensitive information from the external repositories of arbitrary users by leveraging the login_as feature.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Moodle: 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-36426
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=225347

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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.