Incorrect permission assignment for critical resource in Mattermost Server - CVE-2017-18876

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Main Vulnerability Database Vulnerabilities #VU30223

Incorrect permission assignment for critical resource in Mattermost Server - CVE-2017-18876

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


Vulnerability identifier: #VU30223
CSH Severity: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2017-18876
CWE-ID: CWE-732
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Mattermost Server
Software vendor:
Mattermost, Inc.

Description

The vulnerability allows a remote privileged user to gain access to sensitive information.

An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2 when local storage for files is used. A System Admin can test for the existence of an arbitrary file.


Remediation

Install update from vendor's website.

External links