CVE-2018-10933 libssh authentication bypass in server code

by nfoz on 10/17/2018, 5:39 AM with 3 comments
  • by nfoz on 10/17/2018, 5:40 AM
  • by jjoachim3 on 10/17/2018, 8:32 AM

    You're telling me that, basically, an attacker says "you've already said you trust me" and the server answers "sure, I did"? Wow.

  • by nfoz on 10/17/2018, 5:41 AM

    "libssh versions 0.6 and above have an authentication bypass vulnerability in the server code. By presenting the server an SSH2_MSG_USERAUTH_SUCCESS message in place of the SSH2_MSG_USERAUTH_REQUEST message which the server would expect to initiate authentication, the attacker could successfully authentciate without any credentials.

    The bug was discovered by Peter Winter-Smith of NCC Group."