Medium severity · published Feb 13, 2017
CVE-2016-6210
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…
5.9
CVSS
88.9%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)88.9% · higher than 100% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OP
Openssh · Openbsd
through 7.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2016-6210
CVE.org
https://www.cve.org/CVERecord?id=CVE-2016-6210
Mailing List
http://seclists.org/fulldisclosure/2016/Jul/51
www.debian.org
http://www.debian.org/security/2016/dsa-3626
Third Party Advisory
http://www.securityfocus.com/bid/91812
www.securitytracker.com
http://www.securitytracker.com/id/1036319
access.redhat.com
https://access.redhat.com/errata/RHSA-2017:2029
access.redhat.com
https://access.redhat.com/errata/RHSA-2017:2563
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