PT-2020-10807 · Mattermost · Mattermost Server

Published 2020-06-19 · Updated 2020-06-19 · CVE-2019-20844

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Name of the Vulnerable Software and Affected Versions Mattermost Server versions prior to 5.18.0 Mattermost Server version 5.17.2 Mattermost Server version 5.16.4 Mattermost Server version 5.15.4 Mattermost Server version 5.9.7

Description An issue was discovered in Mattermost Server where an attacker can spoof a direct-message channel by changing the type of a channel.

Recommendations For versions prior to 5.18.0, update to version 5.18.0 or later. For version 5.17.2, update to version 5.18.0 or later. For version 5.16.4, update to version 5.18.0 or later. For version 5.15.4, update to version 5.18.0 or later. For version 5.9.7, update to version 5.18.0 or later.

Fix

Weakness Enumeration

CWE-924

Related Identifiers

CVE-2019-20844

Affected Products

Mattermost Server

References · 4

• https://osv.dev/vulnerability/CVE-2019-20844 · Vendor Advisory
• https://mattermost.com/security-updates · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2019-20844 · Security Note
• https://t.me/cibsecurity/12883 · Telegram Post