Mattermost up to 8.1.11/9.5.2/9.6.0/9.7.0 Request Path resource consumption

Summaryinfo

A vulnerability classified as problematic was found in Mattermost up to 8.1.11/9.5.2/9.6.0/9.7.0. Affected by this vulnerability is an unknown functionality of the component Request Path Handler. Executing a manipulation can lead to resource consumption. This vulnerability appears as CVE-2024-22091. The attack may be performed from remote. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as problematic was found in Mattermost up to 8.1.11/9.5.2/9.6.0/9.7.0. This vulnerability affects an unknown function of the component Request Path Handler. The manipulation with an unknown input leads to a resource consumption vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect availability. CVE summarizes:

Mattermost versions 8.1.x <= 8.1.10, 9.6.x <= 9.6.0, 9.5.x <= 9.5.2 and 8.1.x <= 8.1.11 fail to limit the size of a request path that includes user inputs which allows an attacker to cause excessive resource consumption, possibly leading to a DoS via sending large request paths

The weakness was presented by Veshraj Ghimire. The advisory is shared for download at mattermost.com. This vulnerability was named CVE-2024-22091 since 04/10/2024. The exploitation appears to be difficult. The attack can be initiated remotely. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1499.

Upgrading to version 8.1.12, 9.5.3, 9.6.1 or 9.7.0 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2024-1261). Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• Groupware Software

Name

• Mattermost

Version

• 8.1.0
• 8.1.1
• 8.1.2
• 8.1.3
• 8.1.4
• 8.1.5
• 8.1.6
• 8.1.7
• 8.1.8
• 8.1.9
• 8.1.10
• 8.1.11
• 9.0
• 9.1
• 9.2
• 9.3
• 9.4
• 9.5
• 9.5.0
• 9.5.1
• 9.5.2
• 9.6
• 9.6.0
• 9.7.0

License

• open-source

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Once again VulDB remains the best source for vulnerability data.

Discussion