Vulnerability Description
In F5 BIG-IP 12.1.0 through 12.1.2, permissions enforced by iControl can lag behind the actual permissions assigned to a user if the role_map is not reloaded between the time the permissions are changed and the time of the user's next request. This is a race condition that occurs rarely in normal usage; the typical period in which this is possible is limited to at most a few seconds after the permission change.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| F5 | Big-Ip Local Traffic Manager | 12.0.0 |
| F5 | Big-Ip Application Acceleration Manager | 12.0.0 |
| F5 | Big-Ip Advanced Firewall Manager | 12.0.0 |
| F5 | Big-Ip Analytics | 12.0.0 |
| F5 | Big-Ip Access Policy Manager | 12.0.0 |
| F5 | Big-Ip Application Security Manager | 12.0.0 |
| F5 | Big-Ip Domain Name System | 12.0.0 |
| F5 | Big-Ip Link Controller | 12.0.0 |
| F5 | Big-Ip Policy Enforcement Manager | 12.0.0 |
| F5 | Big-Ip Websafe | 12.0.0 |
Related Weaknesses (CWE)
References
- http://www.securityfocus.com/bid/96464Third Party AdvisoryVDB Entry
- https://support.f5.com/csp/article/K47284724Vendor Advisory
- http://www.securityfocus.com/bid/96464Third Party AdvisoryVDB Entry
- https://support.f5.com/csp/article/K47284724Vendor Advisory
FAQ
What is CVE-2016-9256?
CVE-2016-9256 is a vulnerability with a CVSS score of 7.5 (HIGH). In F5 BIG-IP 12.1.0 through 12.1.2, permissions enforced by iControl can lag behind the actual permissions assigned to a user if the role_map is not reloaded between the time the permissions are chang...
How severe is CVE-2016-9256?
CVE-2016-9256 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2016-9256?
Check the references section above for vendor advisories and patch information. Affected products include: F5 Big-Ip Local Traffic Manager, F5 Big-Ip Application Acceleration Manager, F5 Big-Ip Advanced Firewall Manager, F5 Big-Ip Analytics, F5 Big-Ip Access Policy Manager.