Input validation error in Mattermost Server - CVE-2017-18871

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Main Vulnerability Database Vulnerabilities #VU34215

Input validation error in Mattermost Server - CVE-2017-18871

Published: June 19, 2020 / Updated: August 8, 2020


Vulnerability identifier: #VU34215
CSH Severity: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2017-18871
CWE-ID: CWE-20
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 perform a denial of service (DoS) attack.

An issue was discovered in Mattermost Server before 4.5.0, 4.4.5, 4.3.4, and 4.2.2. It allows attackers to cause a denial of service (application crash) via an @ character before a JavaScript field name.


Remediation

Install update from vendor's website.

External links