Moodle up to 3.1.15/3.4.6/3.5.3/3.6.1 Group Management 7pk security

Summaryinfo

A vulnerability classified as problematic was found in Moodle up to 3.1.15/3.4.6/3.5.3/3.6.1. This issue affects some unknown processing of the component Group Management Handler. Executing a manipulation can lead to 7pk security. This vulnerability is tracked as CVE-2019-3808. The attack can be launched remotely. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as critical was found in Moodle up to 3.1.15/3.4.6/3.5.3/3.6.1 (Learning Management Software). This vulnerability affects an unknown function of the component Group Management Handler. The manipulation with an unknown input leads to a 7pk security vulnerability. The CWE definition for the vulnerability is CWE-254. As an impact it is known to affect integrity. CVE summarizes:

A flaw was found in Moodle versions 3.6 to 3.6.1, 3.5 to 3.5.3, 3.4 to 3.4.6, 3.1 to 3.1.15 and earlier unsupported versions. The 'manage groups' capability did not have the 'XSS risk' flag assigned to it, but does have that access in certain places. Note that the capability is intended for use by trusted users, and is only assigned to teachers and managers by default.

The bug was discovered 01/21/2019. The weakness was disclosed 03/25/2019 as confirmed git commit (GIT Repository). The advisory is available at git.moodle.org. This vulnerability was named CVE-2019-3808 since 01/03/2019. The exploitation appears to be easy. The attack can be initiated remotely. The successful exploitation requires a single authentication. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1211 by the MITRE ATT&CK project.

The vulnerability was handled as a non-public zero-day exploit for at least 10 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 121487 (Fedora 28 : moodle (2019-077cd6f168)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 277593 (Fedora Security Update for moodle (FEDORA-2019-077cd6f168)).

Upgrading to version 3.1.16, 3.4.7, 3.5.4 or 3.6.2 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (121487). The entries VDB-132203 and VDB-132204 are pretty similar. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

• Learning Management Software

Name

• Moodle

Version

• 3.1.0
• 3.1.1
• 3.1.2
• 3.1.3
• 3.1.4
• 3.1.5
• 3.1.6
• 3.1.7
• 3.1.8
• 3.1.9
• 3.1.10
• 3.1.11
• 3.1.12
• 3.1.13
• 3.1.14
• 3.1.15
• 3.4.0
• 3.4.1
• 3.4.2
• 3.4.3
• 3.4.4
• 3.4.5
• 3.4.6
• 3.5.0
• 3.5.1
• 3.5.2
• 3.5.3
• 3.6.0
• 3.6.1

License

• open-source

Website

• Product: https://moodle.org/

CPE 2.3info

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CPE 2.2info

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Entryinfo

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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