CVE-2023-43652 (jumpserver)

JumpServer is an open source bastion host. As an unauthenticated user, it is possible to authenticate to the core API with a username and an SSH public key without needing a password or the corresponding SSH private key. An SSH public key should be considered public knowledge and should not used as an authentication secret alone. JumpServer provides an API for the KoKo component to validate user private key logins. This API does not verify the source of requests and …

api authenticate authentication bastion cve host key knowledge open source password private private key public public key secret ssh unauthenticated username