National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2016-6210 Detail

Current 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.

Source:  MITRE
Description Last Modified:  02/13/2017
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 5.9 MEDIUM
Vector: AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N (V3 legend)
Impact Score: 3.6
Exploitability Score: 2.2


Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): None
Availability (A): None

CVSS v2.0 Severity and Metrics:

Base Score: 4.3 MEDIUM
Vector: (AV:N/AC:M/Au:N/C:P/I:N/A:N) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 8.6


Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (AU): None
Confidentiality (C): Partial
Integrity (I): None
Availability (A): None
Additional Information:
Allows unauthorized disclosure of information

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://seclists.org/fulldisclosure/2016/Jul/51 Mailing List Third Party Advisory
http://www.debian.org/security/2016/dsa-3626
http://www.securityfocus.com/bid/91812 Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1036319
https://access.redhat.com/errata/RHSA-2017:2029
https://access.redhat.com/errata/RHSA-2017:2563
https://security.gentoo.org/glsa/201612-18
https://www.exploit-db.com/exploits/40113/
https://www.exploit-db.com/exploits/40136/
https://www.openssh.com/txt/release-7.3 Release Notes Vendor Advisory

Technical Details

Vulnerability Type (View All)

  • Information Leak / Disclosure (CWE-200)

Vulnerable software and versions Switch to CPE 2.2

Configuration 1
OR
cpe:2.3:a:openbsd:openssh:*:p2:*:*:*:*:*:*    versions up to (including) 7.2

Denotes Vulnerable Software
Are we missing a CPE here? Please let us know.

Change History

7 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2016-6210
NVD Published Date:
02/13/2017
NVD Last Modified:
01/04/2018