Vulnerabilities
Misconfiguration
Runtime Security
Compliance
CVE Vulnerabilities

CVE-2017-18911

Improper Certificate Validation

Published: Jun 19, 2020 | Modified: Jun 26, 2020
CVSS 3.x
9.1
CRITICAL
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CVSS 2.x
6.4 MEDIUM
AV:N/AC:L/Au:N/C:P/I:P/A:N
RedHat/V2
RedHat/V3
Ubuntu
Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2017-18911
CWEhttps://cwe.mitre.org/data/definitions/295.html

An issue was discovered in Mattermost Server before 3.8.2, 3.7.5, and 3.6.7. The X.509 certificate validation can be skipped for a TLS-based e-mail server.

Weakness

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

Affected Software

Name Vendor Start Version End Version
Mattermost_server Mattermost * 3.6.7 (excluding)
Mattermost_server Mattermost 3.7.0 (including) 3.7.5 (excluding)
Mattermost_server Mattermost 3.8.0 (including) 3.8.2 (excluding)

Potential Mitigations

References

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