Vulnerability Description
When the F5 BIG-IP 12.1.0-12.1.1, 11.6.0-11.6.1, 11.5.1-11.5.5, or 11.2.1 system is configured with a wildcard IPSec tunnel endpoint, it may allow a remote attacker to disrupt or impersonate the tunnels that have completed phase 1 IPSec negotiations. The attacker must possess the necessary credentials to negotiate the phase 1 of the IPSec exchange to exploit this vulnerability; in many environment this limits the attack surface to other endpoints under the same administration.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| F5 | Big-Ip Local Traffic Manager | >= 11.5.1, <= 11.5.5 |
| F5 | Big-Ip Application Acceleration Manager | >= 11.5.1, <= 11.5.5 |
| F5 | Big-Ip Advanced Firewall Manager | >= 11.5.1, <= 11.5.5 |
| F5 | Big-Ip Analytics | >= 11.5.1, <= 11.5.5 |
| F5 | Big-Ip Access Policy Manager | >= 11.5.1, <= 11.5.5 |
| F5 | Big-Ip Application Security Manager | >= 11.5.1, <= 11.5.5 |
| F5 | Big-Ip Edge Gateway | >= 11.5.1, <= 11.5.5 |
| F5 | Big-Ip Global Traffic Manager | >= 11.5.1, <= 11.5.5 |
| F5 | Big-Ip Link Controller | >= 11.5.1, <= 11.5.5 |
| F5 | Big-Ip Policy Enforcement Manager | >= 11.5.1, <= 11.5.5 |
| F5 | Big-Ip Webaccelerator | >= 11.5.1, <= 11.5.5 |
| F5 | Big-Ip Websafe | >= 11.5.1, <= 11.5.5 |
| F5 | Big-Ip Domain Name System | >= 11.5.1, <= 11.5.5 |
References
- https://support.f5.com/csp/article/K05263202Vendor Advisory
- https://support.f5.com/csp/article/K05263202Vendor Advisory
FAQ
What is CVE-2017-6156?
CVE-2017-6156 is a vulnerability with a CVSS score of 6.4 (MEDIUM). When the F5 BIG-IP 12.1.0-12.1.1, 11.6.0-11.6.1, 11.5.1-11.5.5, or 11.2.1 system is configured with a wildcard IPSec tunnel endpoint, it may allow a remote attacker to disrupt or impersonate the tunne...
How severe is CVE-2017-6156?
CVE-2017-6156 has been rated MEDIUM with a CVSS base score of 6.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2017-6156?
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.