CVE-2017-18885

Description

An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2. It allows attackers to gain privileges by accessing unintended API endpoints on a user's behalf.

CVSS Metrics

• v3.1•CRITICAL•Score: 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
• v2.0•HIGH•Score: 7.5AV:N/AC:L/Au:N/C:P/I:P/A:P

EPSS Trends

Current EPSS score: 0.30%• Percentile: 53%

Techniques & Countermeasures

• CWE-269•Improper Privilege Management

  The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.

Affected Systems

• github.com/mattermost•mattermost-server

  < 4.1.2 | ≥ 4.2.0-rc1, < 4.2.1 | ≥ 4.3.0-rc1, < 4.3.0 | ≥ 4.3.0-rc1+incompatible, < 4.3.0+incompatible

• mattermost•mattermost_server

  < 4.1.2 | ≥ 4.2.0, < 4.2.1 | 4.3.0:rc1 | 4.3.0:rc2 | 4.3.0:rc3 | 4.3.0:rc4

References (5)

• https://mattermost.com/security-updates/
• https://nvd.nist.gov/vuln/detail/CVE-2017-18885
• https://github.com/mattermost/mattermost
• https://mattermost.com/security-updates
• https://github.com/advisories/GHSA-g78f-6xq7-rrhq