Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Openbsd | Openssh | <= 7.2 |
Related Weaknesses (CWE)
References
- http://seclists.org/fulldisclosure/2016/Jul/51Mailing ListThird Party Advisory
- http://www.debian.org/security/2016/dsa-3626
- http://www.securityfocus.com/bid/91812Third Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1036319
- https://access.redhat.com/errata/RHSA-2017:2029
- https://access.redhat.com/errata/RHSA-2017:2563
- https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
- https://security.gentoo.org/glsa/201612-18
- https://security.netapp.com/advisory/ntap-20190206-0001/
- https://www.exploit-db.com/exploits/40113/
- https://www.exploit-db.com/exploits/40136/
- https://www.openssh.com/txt/release-7.3Release NotesVendor Advisory
- http://seclists.org/fulldisclosure/2016/Jul/51Mailing ListThird Party Advisory
- http://www.debian.org/security/2016/dsa-3626
- http://www.securityfocus.com/bid/91812Third Party AdvisoryVDB Entry
FAQ
What is CVE-2016-6210?
CVE-2016-6210 is a vulnerability with a CVSS score of 5.9 (MEDIUM). 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 enum...
How severe is CVE-2016-6210?
CVE-2016-6210 has been rated MEDIUM with a CVSS base score of 5.9/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2016-6210?
Check the references section above for vendor advisories and patch information. Affected products include: Openbsd Openssh.