Moodle LTI Module cross site scripting

Summaryinfo

A vulnerability has been found in Moodle and classified as problematic. Affected by this issue is some unknown functionality of the component LTI Module. The manipulation leads to cross site scripting. This vulnerability is traded as CVE-2022-35653. It is possible to initiate the attack remotely. There is no exploit available. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability was found in Moodle (Learning Management Software) (the affected version unknown). It has been rated as problematic. This issue affects an unknown part of the component LTI Module. The manipulation with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. Impacted is integrity. The summary by CVE is:

A reflected XSS issue was identified in the LTI module of Moodle. The vulnerability exists due to insufficient sanitization of user-supplied data in the LTI module. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website to steal potentially sensitive information, change appearance of the web page, can perform phishing and drive-by-download attacks. This vulnerability does not impact authenticated users.

The weakness was shared 07/26/2022. It is possible to read the advisory at git.moodle.org. The identification of this vulnerability is CVE-2022-35653 since 07/12/2022. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 261458 (Linux Distros Unpatched Vulnerability : CVE-2022-35653), which helps to determine the existence of the flaw in a target environment.

Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.moodle.org.

The vulnerability is also documented in the vulnerability database at Tenable (261458). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

• Learning Management Software

Name

• Moodle

License

• open-source

Website

• Product: https://moodle.org/

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Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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