high
7.8
CWE
20
Advisory Published
Updated

CVE-2018-15319: Input Validation

First published: Wed Oct 31 2018(Updated: )

On BIG-IP 14.0.0-14.0.0.2, 13.0.0-13.1.1.1, or 12.1.0-12.1.3.6, malicious requests made to virtual servers with an HTTP profile can cause the TMM to restart. The issue is exposed with the non-default "normalize URI" configuration options used in iRules and/or BIG-IP LTM policies.

Credit: f5sirt@f5.com

Affected SoftwareAffected VersionHow to fix
F5 Big-ip Local Traffic Manager>=12.1.0<=12.1.3.6
F5 Big-ip Local Traffic Manager>=13.0.0<=13.1.1.1
F5 Big-ip Local Traffic Manager>=14.0.0<=14.0.0.2
F5 BIG-IP Advanced Firewall Manager>=12.1.0<=12.1.3.6
F5 BIG-IP Advanced Firewall Manager>=13.0.0<=13.1.1.1
F5 BIG-IP Advanced Firewall Manager>=14.0.0<=14.0.0.2
F5 Big-ip Application Acceleration Manager>=12.1.0<=12.1.3.6
F5 Big-ip Application Acceleration Manager>=13.0.0<=13.1.1.1
F5 Big-ip Application Acceleration Manager>=14.0.0<=14.0.0.2
F5 BIG-IP Analytics>=12.1.0<=12.1.3.6
F5 BIG-IP Analytics>=13.0.0<=13.1.1.1
F5 BIG-IP Analytics>=14.0.0<=14.0.0.2
F5 BIG-IP Access Policy Manager>=12.1.0<=12.1.3.6
F5 BIG-IP Access Policy Manager>=13.0.0<=13.1.1.1
F5 BIG-IP Access Policy Manager>=14.0.0<=14.0.0.2
F5 Big-ip Protocol Security Module>=12.1.0<=12.1.3.6
F5 Big-ip Protocol Security Module>=13.0.0<=13.1.1.1
F5 Big-ip Protocol Security Module>=14.0.0<=14.0.0.2
F5 Big-ip Domain Name System>=12.1.0<=12.1.3.6
F5 Big-ip Domain Name System>=13.0.0<=13.1.1.1
F5 Big-ip Domain Name System>=14.0.0<=14.0.0.2
F5 Big-ip Edge Gateway>=12.1.0<=12.1.3.6
F5 Big-ip Edge Gateway>=13.0.0<=13.1.1.1
F5 Big-ip Edge Gateway>=14.0.0<=14.0.0.2
F5 Big-ip Fraud Protection Service>=12.1.0<=12.1.3.6
F5 Big-ip Fraud Protection Service>=13.0.0<=13.1.1.1
F5 Big-ip Fraud Protection Service>=14.0.0<=14.0.0.2
F5 Big-ip Global Traffic Manager>=12.1.0<=12.1.3.6
F5 Big-ip Global Traffic Manager>=13.0.0<=13.1.1.1
F5 Big-ip Global Traffic Manager>=14.0.0<=14.0.0.2
F5 Big-ip Link Controller>=12.1.0<=12.1.3.6
F5 Big-ip Link Controller>=13.0.0<=13.1.1.1
F5 Big-ip Link Controller>=14.0.0<=14.0.0.2
F5 Big-ip Policy Enforcement Manager>=12.1.0<=12.1.3.6
F5 Big-ip Policy Enforcement Manager>=13.0.0<=13.1.1.1
F5 Big-ip Policy Enforcement Manager>=14.0.0<=14.0.0.2
F5 Big-ip Webaccelerator>=12.1.0<=12.1.3.6
F5 Big-ip Webaccelerator>=13.0.0<=13.1.1.1
F5 Big-ip Webaccelerator>=14.0.0<=14.0.0.2

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Reference Links

Frequently Asked Questions

  • What is CVE-2018-15319?

    CVE-2018-15319 is a vulnerability that affects F5 Big-ip Local Traffic Manager, F5 BIG-IP Advanced Firewall Manager, F5 Big-ip Application Acceleration Manager, F5 BIG-IP Analytics, F5 BIG-IP Access Policy Manager, F5 Big-ip Protocol Security Module, F5 Big-ip Domain Name System, F5 Big-ip Edge Gateway, F5 Big-ip Fraud Protection Service, F5 Big-ip Global Traffic Manager, F5 Big-ip Link Controller, F5 Big-ip Policy Enforcement Manager, and F5 Big-ip Webaccelerator. It allows an attacker to cause the Traffic Management Microkernel (TMM) to restart by sending malicious requests to virtual servers with an HTTP profile using the non-default "normalize URI" configuration options used in iRules and/or BIG-IP LTM policies.

  • How severe is CVE-2018-15319?

    CVE-2018-15319 has a severity value of 7.5, which is considered high.

  • How can I fix CVE-2018-15319?

    To fix CVE-2018-15319, you should upgrade your F5 Big-IP software to version 12.1.3.7, 13.1.1.2, or 14.0.0.3 or later.

  • Where can I find more information about CVE-2018-15319?

    You can find more information about CVE-2018-15319 on the SecurityFocus website and the F5 support website.

  • What CWE is associated with CVE-2018-15319?

    CVE-2018-15319 is associated with CWE-20, which is Improper Input Validation.

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