CVE-2023-5967 — Improper Check for Unusual or Exceptional Conditions in Mattermost Mattermost-server V6

CWE-754 — Improper Check for Unusual or Exceptional Conditions4 documents4 sources
Severity
4.3MEDIUMNVD
EPSS
0.1%
top 72.98%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
Github.com Mattermost Mattermost-server V6Github.com Mattermost Mattermost Server V8Mattermost
Timeline
PublishedNov 6

Description

Mattermost fails to properly validate requests to the Calls plugin, allowing an attacker sending a request without a User Agent header to cause a panic and crash the Calls plugin

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:LExploitability: 2.8 | Impact: 1.4

Affected Packages4 packages

▶CVEListV5mattermost/mattermost8.1.2+2
▶NVDmattermost/mattermost8.0.0 — 8.0.3+2

🔴Vulnerability Details

3
CVEList
Denial of Service via crashing the Calls Plugin↗2023-11-06
▶
GHSA
Mattermost denial of service vulnerability↗2023-11-06
▶
OSV
Mattermost denial of service vulnerability↗2023-11-06
▶
CVE-2023-5967 — MEDIUM severity | cvebase