CVE-2016-6210
Summary
| CVE | CVE-2016-6210 |
|---|---|
| State | PUBLIC |
| Assigner | [email protected] |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2017-02-13 17:59:00 UTC |
| Updated | 2022-12-13 12:15:00 UTC |
| 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. |
Risk And Classification
Problem Types: CWE-200
NVD Known Affected Configurations (CPE 2.3)
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| OpenSSHd 7.2p2 - Username Enumeration (PoC) | EXPLOIT-DB | www.exploit-db.com | |
| Exploit – Page 40136 – Exploits Database | EXPLOIT-DB | www.exploit-db.com | |
| OpenSSH CVE-2016-6210 User Enumeration Vulnerability | BID | www.securityfocus.com | Third Party Advisory, VDB Entry |
| OpenSSH Lets Remote Users Determine Valid Usernames on the Target System - SecurityTracker | SECTRACK | www.securitytracker.com | |
| www.openssh.com/txt/release-7.3 | CONFIRM | www.openssh.com | Release Notes, Vendor Advisory |
| OpenSSH: Multiple vulnerabilities (GLSA 201612-18) — Gentoo security | GENTOO | security.gentoo.org | |
| Red Hat Customer Portal | REDHAT | access.redhat.com | |
| Debian -- Security Information -- DSA-3626-1 openssh | DEBIAN | www.debian.org | |
| CVE-2016-6210 OpenSSH Vulnerability in NetApp Products | NetApp Product Security | CONFIRM | security.netapp.com | |
| cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf | CONFIRM | cert-portal.siemens.com | |
| Full Disclosure: opensshd - user enumeration | FULLDISC | seclists.org | Mailing List, Third Party Advisory |
| Red Hat Customer Portal | REDHAT | access.redhat.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
Legacy QID Mappings
- 160867 Oracle Enterprise Linux Security Update for openssh (ELSA-2023-4428)
- 38907 OpenSSH User Enumeration Vulnerability (CVE-2016-6210)
- 390278 Oracle Managed Virtualization (VM) Server for x86 Security Update for openssh (OVMSA-2023-0019)
- 591280 Siemens SCALANCE X-200RNA Switch Devices Denial of Service (DoS) Multiple Vulnerabilities (ICSA-22-349-21, SSA-412672)