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.
References
Link Resource
https://github.com/Graylog2/graylog2-server/issues/5906 Third Party Advisory
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Configurations

Configuration 1 (hide)

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

Information

Published : 2020-07-17 12:15

Updated : 2020-07-22 08:03


NVD link : CVE-2020-15813

Mitre link : CVE-2020-15813


JSON object : View

CWE
CWE-295

Improper Certificate Validation

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Products Affected

graylog

  • graylog