Mattermost up to 9.5.8/9.11.0 Permalink Post resource consumption

Summaryinfo

A vulnerability has been found in Mattermost up to 9.5.8/9.11.0 and classified as problematic. Impacted is an unknown function of the component Permalink Post. Performing a manipulation results in resource consumption. This vulnerability is reported as CVE-2024-47003. The attack is possible to be carried out remotely. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Mattermost up to 9.5.8/9.11.0. It has been classified as problematic. This affects an unknown part of the component Permalink Post. The manipulation with an unknown input leads to a resource consumption vulnerability. CWE is classifying the issue as CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. This is going to have an impact on availability. The summary by CVE is:

Mattermost versions 9.11.x <= 9.11.0 and 9.5.x <= 9.5.8 fail to validate that the message of the permalink post is a string, which allows an attacker to send a non-string value as the message of a permalink post and crash the frontend.

The weakness was disclosed by C0rydoras. It is possible to read the advisory at mattermost.com. This vulnerability is uniquely identified as CVE-2024-47003 since 09/23/2024. The exploitability is told to be difficult. It is possible to initiate the attack remotely. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 209296 (Mattermost Server 9.5.x < 9.5.9 / 9.11.x < 9.11.1 (MMSA-2024-00373)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 9.5.9 or 9.11.1 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (209296). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

• Groupware Software

Name

• Mattermost

Version

• 9.0
• 9.1
• 9.2
• 9.3
• 9.4
• 9.5
• 9.5.0
• 9.5.1
• 9.5.2
• 9.5.3
• 9.5.4
• 9.5.5
• 9.5.6
• 9.5.7
• 9.5.8
• 9.6
• 9.7
• 9.8
• 9.9
• 9.10
• 9.11.0

License

• open-source

CPE 2.3info

• 🔍
• 🔍
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CPE 2.2info

• 🔍
• 🔍
• 🔍

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Entryinfo

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

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