CVE-2016-6210
- State
- Published
- Severity
- 5.9 Medium
- Published
- Feb 13, 2017
- Updated
- May 29, 2026
- Reserved
- Jul 13, 2016
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 5.9 Medium | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N | CISA-ADP |
Weaknesses
- CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
Affected Products
| Product | Versions |
|---|---|
n/an/a |
|
References
- RHSA-2017:2563vendor-advisory
- 1036319vdb-entry
- 20160714 opensshd - user enumerationmailing-list
- DSA-3626vendor-advisory
- 40136exploit
- 40113exploit
- https://www.openssh.com/txt/release-7.3
- GLSA-201612-18vendor-advisory
- RHSA-2017:2029vendor-advisory
- 91812vdb-entry
- https://security.netapp.com/advisory/ntap-20190206-0001/
- https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.