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.
References
Link | Resource |
---|---|
https://github.com/Graylog2/graylog2-server/issues/5906 | Third Party Advisory |
https://github.com/Graylog2/graylog2-server/issues/5906 | Third Party Advisory |
Configurations
History
21 Nov 2024, 05:06
Type | Values Removed | Values Added |
---|---|---|
References | () 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