CVE-2017-18909

Aliases:GHSA-r6j5-fqx9-7qv9GO-2026-4478
Advisory lineage Upstream: 0 Downstream: 1
Modified
Published: 19 Jun 2020, 18:45
Last modified:05 Aug 2024, 21:37

Vulnerability Summary

Overall Risk (default)
medium
30/100
CVSS Score
7.5 HIGH
v3.1 (nvd)
EPSS Score
0.15% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

19 Jun 2020, 18:45
Published
Vulnerability first disclosed
05 Aug 2024, 21:37
Last Modified
Vulnerability information updated

Description

An issue was discovered in Mattermost Server before 3.9.0 when SAML is used. Encryption and signature verification are not mandatory.

CVSS Metrics

  • v3.1•HIGH•Score: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
  • v2.0•MEDIUM•Score: 4.3AV:N/AC:M/Au:N/C:P/I:N/A:N

EPSS Trends

Current EPSS score: 0.15%• Percentile: 35%

Techniques & Countermeasures

  • CWE-295•Improper Certificate Validation

    The product does not validate, or incorrectly validates, a certificate.

Affected Systems

  • github.com/mattermost•mattermost-server

    < 3.8.1-0.20170504181128-4f074fed0d65 | all

  • mattermost•mattermost_server

    < 3.9.0

References (6)