#VU34232 Inconsistent interpretation of HTTP requests in Mattermost Server - CVE-2019-20866

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Main Vulnerability Database Vulnerabilities #VU34232

#VU34232 Inconsistent interpretation of HTTP requests in Mattermost Server - CVE-2019-20866

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


Vulnerability identifier: #VU34232
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2019-20866
CWE-ID: CWE-444
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 gain access to sensitive information.

An issue was discovered in Mattermost Server before 5.12.0. Use of a Proxy HTTP header, rather than the source address in an IP packet header, for obtaining IP address information was mishandled.


Remediation

Install update from vendor's website.

External links