CVE-2016-6210
MEDIUMEPSS Exploitation Probability
EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.
Description
sshd in OpenSSH before 7.3, when SHA256 or SHA512 are used for user password hashing, uses BLOWFISH hashing on a static password when the username does not exist, which allows remote attackers to enumerate users by leveraging the timing difference between responses when a large password is provided.
Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.
OpenSSHd 7.2p2 - Username Enumeration
by Eddie Harari · Jul 18, 2016
OpenSSH 7.2p2 - Username Enumeration
by 0_o · Jul 20, 2016
Frequently Asked Questions
Is CVE-2016-6210 in your stack?
O3 detects CVE-2016-6210 across dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.