medium
6.4
Advisory Published
Updated

CVE-2017-6156

First published: Thu Apr 12 2018(Updated: )

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.

Credit: f5sirt@f5.com

Affected SoftwareAffected VersionHow to fix
F5 Big-ip Local Traffic Manager>=11.5.1<=11.5.5
F5 Big-ip Local Traffic Manager>=12.1.0<=12.1.1
F5 Big-ip Local Traffic Manager=11.2.1
F5 Big-ip Local Traffic Manager=11.6.1
F5 Big-ip Application Acceleration Manager>=11.5.1<=11.5.5
F5 Big-ip Application Acceleration Manager>=12.1.0<=12.1.1
F5 Big-ip Application Acceleration Manager=11.2.1
F5 Big-ip Application Acceleration Manager=11.6.1
F5 BIG-IP Advanced Firewall Manager>=11.5.1<=11.5.5
F5 BIG-IP Advanced Firewall Manager>=12.1.0<=12.1.1
F5 BIG-IP Advanced Firewall Manager=11.2.1
F5 BIG-IP Advanced Firewall Manager=11.6.1
F5 BIG-IP Analytics>=11.5.1<=11.5.5
F5 BIG-IP Analytics>=12.1.0<=12.1.1
F5 BIG-IP Analytics=11.2.1
F5 BIG-IP Analytics=11.6.1
F5 BIG-IP Access Policy Manager>=11.5.1<=11.5.5
F5 BIG-IP Access Policy Manager>=12.1.0<=12.1.1
F5 BIG-IP Access Policy Manager=11.2.1
F5 BIG-IP Access Policy Manager=11.6.1
F5 BIG-IP Application Security Manager>=11.5.1<=11.5.5
F5 BIG-IP Application Security Manager>=12.1.0<=12.1.1
F5 BIG-IP Application Security Manager=11.2.1
F5 BIG-IP Application Security Manager=11.6.1
F5 Big-ip Edge Gateway>=11.5.1<=11.5.5
F5 Big-ip Edge Gateway>=12.1.0<=12.1.1
F5 Big-ip Edge Gateway=11.2.1
F5 Big-ip Edge Gateway=11.6.1
F5 Big-ip Global Traffic Manager>=11.5.1<=11.5.5
F5 Big-ip Global Traffic Manager>=12.1.0<=12.1.1
F5 Big-ip Global Traffic Manager=11.2.1
F5 Big-ip Global Traffic Manager=11.6.1
F5 Big-ip Link Controller>=11.5.1<=11.5.5
F5 Big-ip Link Controller>=12.1.0<=12.1.1
F5 Big-ip Link Controller=11.2.1
F5 Big-ip Link Controller=11.6.1
F5 Big-ip Policy Enforcement Manager>=11.5.1<=11.5.5
F5 Big-ip Policy Enforcement Manager>=12.1.0<=12.1.1
F5 Big-ip Policy Enforcement Manager=11.2.1
F5 Big-ip Policy Enforcement Manager=11.6.1
F5 Big-ip Webaccelerator>=11.5.1<=11.5.5
F5 Big-ip Webaccelerator>=12.1.0<=12.1.1
F5 Big-ip Webaccelerator=11.2.1
F5 Big-ip Webaccelerator=11.6.1
F5 Big-ip Websafe>=11.5.1<=11.5.5
F5 Big-ip Websafe>=12.1.0<=12.1.1
F5 Big-ip Websafe=11.2.1
F5 Big-ip Websafe=11.6.1
F5 Big-ip Domain Name System>=11.5.1<=11.5.5
F5 Big-ip Domain Name System>=12.1.0<=12.1.1
F5 Big-ip Domain Name System=11.2.1
F5 Big-ip Domain Name System=11.6.1

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Reference Links

Frequently Asked Questions

  • What is CVE-2017-6156 vulnerability about?

    The vulnerability in F5 BIG-IP systems allows a remote attacker to disrupt or impersonate IPSec tunnels.

  • How can the CVE-2017-6156 vulnerability be exploited?

    The attacker needs to possess the necessary credentials and target systems with specific configurations.

  • What is the severity of CVE-2017-6156?

    The severity of CVE-2017-6156 is rated as medium with a CVSS score of 6.4.

  • Is there a fix available for CVE-2017-6156?

    Users can mitigate this vulnerability by applying the necessary security patches provided by F5.

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