High severity · published May 9, 2017
CVE-2016-9253
In F5 BIG-IP 12.1.0 through 12.1.2, specific websocket traffic patterns may cause a disruption of service for virtual servers configured to use the websocket profile
7.5
CVSS
1.3%
EPSS
No
On KEV
Description
In F5 BIG-IP 12.1.0 through 12.1.2, specific websocket traffic patterns may cause a disruption of service for virtual servers configured to use the websocket profile.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.3% · higher than 71% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BA
Big-ip Access Policy Manager · F5
12.1.0; 12.1.1; 12.1.2 · source: NVD
BA
Big-ip Advanced Firewall Manager · F5
12.1.0; 12.1.1; 12.1.2 · source: NVD
BA
Big-ip Analytics · F5
12.1.0; 12.1.1; 12.1.2 · source: NVD
BA
Big-ip Application Acceleration Manager · F5
12.1.0; 12.1.1; 12.1.2 · source: NVD
BA
Big-ip Application Security Manager · F5
12.1.0; 12.1.1; 12.1.2 · source: NVD
BD
Big-ip Domain Name System · F5
12.1.0; 12.1.1; 12.1.2 · source: NVD
BL
Big-ip Link Controller · F5
12.1.0; 12.1.1; 12.1.2 · source: NVD
BL
Big-ip Local Traffic Manager · F5
12.1.0; 12.1.1; 12.1.2 · source: NVD
BP
Big-ip Policy Enforcement Manager · F5
12.1.0; 12.1.1; 12.1.2 · source: NVD
BW
Big-ip Websafe · F5
12.1.0; 12.1.1; 12.1.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2016-9253
CVE.org
https://www.cve.org/CVERecord?id=CVE-2016-9253
www.securitytracker.com
http://www.securitytracker.com/id/1038415
Vendor Advisory
https://support.f5.com/csp/article/K51351360
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