Privilege escalation in Mattermost Server



Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-14460
CWE-ID CWE-269
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 medium risk vulnerability.

1) Improper Privilege Management

EUVDB-ID: #VU29472

Risk: Medium

CVSSv4.0: 4.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2020-14460

CWE-ID: CWE-269 - Improper Privilege Management

Exploit availability: No

Description

The vulnerability allows a remote attacker to escalate privileges on the system.

The vulnerability exists due to the creation of a trusted OAuth application does not always require admin privileges. A remote authenticated attacker can gain elevated privileges on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Mattermost Server:

CPE2.3 External links

https://mattermost.com/security-updates/


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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