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.
https://github.com/rash-aad/recon-vuln-scanner
https://github.com/Silence-Cy/ModuScan
https://github.com/Ateebshaikh21/red-team-ai
https://github.com/Mahenazbanu/NetReconSuite
https://github.com/NULL200OK/network-security-auditor-plus
https://github.com/coolbabayaga/CVE-2016-6210
https://github.com/krlabs/openssh-vulnerabilities
https://github.com/ryanalieh/openSSH-scanner
https://github.com/bigb0x/OpenSSH-Scanner
https://github.com/bigb0x/SSH-Scanner
https://github.com/bigb0x/CVE-2024-6387
https://github.com/goomdan/CVE-2016-6210-exploit
https://github.com/Tardcircus/CVE2016-6210
https://github.com/justlce/CVE-2016-6210-Exploit
https://github.com/calebshortt/opensshd_user_enumeration
https://github.com/bassitone/OpenSSH-User-Enumeration
https://www.openssh.com/txt/release-7.3
https://www.exploit-db.com/exploits/40136/
https://www.exploit-db.com/exploits/40113/
https://security.netapp.com/advisory/ntap-20190206-0001/
https://security.gentoo.org/glsa/201612-18
https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
https://access.redhat.com/errata/RHSA-2017:2563
https://access.redhat.com/errata/RHSA-2017:2029