#VU43859 Credentials management in Moodle - CVE-2012-0794

Vulnerability identifier: #VU43859

Vulnerability risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2012-0794

CWE-ID: CWE-255

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Moodle
Web applications / Other software

Vendor: moodle.org

Description

The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.

The rc4encrypt function in lib/moodlelib.php in Moodle 1.9.x before 1.9.16, 2.0.x before 2.0.7, 2.1.x before 2.1.4, and 2.2.x before 2.2.1 uses a hardcoded password of nfgjeingjk, which makes it easier for remote attackers to defeat cryptographic protection mechanisms by reading this script's source code within the open-source software distribution.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Moodle: 1.9 - 1.9.15, 2.0 - 2.0.6, 2.1 - 2.1.3, 2.2

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External links
https://git.moodle.org/gw?p=moodle.git;a=commit;h=98456628a24bba25d336860d38a45b5a4e3895da
https://moodle.org/mod/forum/discuss.php?d=194013
https://www.debian.org/security/2012/dsa-2421
https://bugzilla.redhat.com/show_bug.cgi?id=783532

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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