#VU30251 Improper Enforcement of Message Integrity During Transmission in a Communication Channel in Mattermost Server - CVE-2019-20844

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Main Vulnerability Database Vulnerabilities #VU30251

#VU30251 Improper Enforcement of Message Integrity During Transmission in a Communication Channel in Mattermost Server - CVE-2019-20844

Published: June 19, 2020 / Updated: July 17, 2020


Vulnerability identifier: #VU30251
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2019-20844
CWE-ID: CWE-924
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Mattermost Server
Software vendor:
Mattermost, Inc.

Description

The vulnerability allows a remote non-authenticated attacker to manipulate data.

An issue was discovered in Mattermost Server before 5.18.0, 5.17.2, 5.16.4, 5.15.4, and 5.9.7. An attacker can spoof a direct-message channel by changing the type of a channel.


Remediation

Install update from vendor's website.

External links