Security restrictions bypass in Mattermost Server



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID N/A
CWE-ID CWE-285
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Mattermost Server
Client/Desktop applications / Messaging software

Vendor Mattermost, Inc.

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Improper Authorization

EUVDB-ID: #VU49556

Risk: Low

CVSSv4.0: 1.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: N/A

CWE-ID: CWE-285 - Improper Authorization

Exploit availability: No

Description

The vulnerability allows a remote user to bypass implemented security restrictions.

The vulnerability exists due to unspecified error related to partial failure in permission level enforcement for high-availability configurations during an active session. A remote user can gain access to restricted resources under certain conditions within an active session.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Mattermost Server:

CPE2.3 External links

https://mattermost.com/security-updates/#MMSA-2020-0040


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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



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