CVE-2020-15813

Graylog before 3.3.3 lacks SSL Certificate Validation for LDAP servers. It allows use of an external user/group database stored in LDAP. The connection configuration allows the usage of unencrypted, SSL- or TLS-secured connections. Unfortunately, the Graylog client code (in all versions that support LDAP) does not implement proper certificate validation (regardless of whether the "Allow self-signed certificates" option is used). Therefore, any attacker with the ability to intercept network traffic between a Graylog server and an LDAP server is able to redirect traffic to a different LDAP server (unnoticed by the Graylog server due to the lack of certificate validation), effectively bypassing Graylog's authentication mechanism.
Configurations

Configuration 1 (hide)

cpe:2.3:a:graylog:graylog:*:*:*:*:*:*:*:*

History

21 Nov 2024, 05:06

Type Values Removed Values Added
References () https://github.com/Graylog2/graylog2-server/issues/5906 - Third Party Advisory () https://github.com/Graylog2/graylog2-server/issues/5906 - Third Party Advisory

Information

Published : 2020-07-17 19:15

Updated : 2024-11-21 05:06


NVD link : CVE-2020-15813

Mitre link : CVE-2020-15813

CVE.ORG link : CVE-2020-15813


JSON object : View

Products Affected

graylog

  • graylog
CWE
CWE-295

Improper Certificate Validation