{"id":"GHSA-3gg9-f3vh-866f","summary":"Improper Certificate Validation in Graylog","details":"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.","aliases":["CVE-2020-15813"],"modified":"2023-11-08T04:02:38.210527Z","published":"2022-02-10T22:39:58Z","database_specific":{"nvd_published_at":"2020-07-17T19:15:00Z","cwe_ids":["CWE-295"],"severity":"HIGH","github_reviewed":true,"github_reviewed_at":"2021-05-10T21:16:56Z"},"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-15813"},{"type":"WEB","url":"https://github.com/Graylog2/graylog2-server/issues/5906"},{"type":"WEB","url":"https://github.com/Graylog2/graylog2-server/pull/8569"}],"affected":[{"package":{"name":"org.graylog:graylog-parent","ecosystem":"Maven","purl":"pkg:maven/org.graylog/graylog-parent"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.3.3"}]}],"versions":["2.2.0","2.2.0-alpha.1","2.2.0-alpha.2","2.2.0-alpha.3","2.2.0-alpha.4","2.2.0-beta.1","2.2.0-beta.2","2.2.0-beta.3","2.2.0-beta.4","2.2.0-beta.5","2.2.0-beta.6","2.2.0-rc.1","2.2.1","2.2.2","2.2.3","2.3.0","2.3.0-alpha.1","2.3.0-alpha.2","2.3.0-alpha.3","2.3.0-beta.1","2.3.0-rc.1","2.3.0-rc.2","2.3.1","2.3.2","2.4.0","2.4.0-alpha.1","2.4.0-alpha.2","2.4.0-alpha.3","2.4.0-beta.1","2.4.0-beta.2","2.4.0-beta.3","2.4.0-beta.4","2.4.0-rc.1","2.4.0-rc.2","2.4.1","2.4.2","2.4.3","2.4.4","2.4.5","2.4.6","2.4.7","2.5.0","2.5.0-alpha.1","2.5.0-beta.1","2.5.1","2.5.2","3.0.0","3.0.0-alpha.0","3.0.0-alpha.1","3.0.0-alpha.2","3.0.0-alpha.3","3.0.0-alpha.4","3.0.0-alpha.5","3.0.0-beta.1","3.0.0-beta.2","3.0.0-beta.4","3.0.0-rc.1","3.0.0-rc.2","3.0.1","3.0.2","3.1.0","3.1.0-beta.2","3.1.0-beta.3","3.1.0-rc.1","3.1.0-rc.2","3.1.1","3.1.2","3.1.3","3.1.4","3.2.0","3.2.1","3.2.2","3.2.3","3.2.4","3.2.5","3.3.0","3.3.0-beta.3","3.3.0-rc.1","3.3.2"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/02/GHSA-3gg9-f3vh-866f/GHSA-3gg9-f3vh-866f.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}