medium
4.4
CWE
863
Advisory Published
Updated

CVE-2018-5520

First published: Mon Apr 30 2018(Updated: )

On an F5 BIG-IP 13.0.0-13.1.0.5, 12.1.0-12.1.3.1, or 11.2.1-11.6.3.1 system configured in Appliance mode, the TMOS Shell (tmsh) may allow an administrative user to use the dig utility to gain unauthorized access to file system resources.

Credit: f5sirt@f5.com

Affected SoftwareAffected VersionHow to fix
F5 BIG-IP Local Traffic Manager>=11.2.1<=11.6.3
F5 BIG-IP Local Traffic Manager>=12.1.0<=12.1.3
F5 BIG-IP Local Traffic Manager>=13.0.0<=13.1.0
f5 big-ip application acceleration manager>=11.2.1<=11.6.3
f5 big-ip application acceleration manager>=12.1.0<=12.1.3
f5 big-ip application acceleration manager>=13.0.0<=13.1.0
F5 BIG-IP Advanced Firewall Manager>=11.2.1<=11.6.3
F5 BIG-IP Advanced Firewall Manager>=12.1.0<=12.1.3
F5 BIG-IP Advanced Firewall Manager>=13.0.0<=13.1.0
F5 BIG-IP Analytics>=11.2.1<=11.6.3
F5 BIG-IP Analytics>=12.1.0<=12.1.3
F5 BIG-IP Analytics>=13.0.0<=13.1.0
F5 BIG-IP Access Policy Manager>=11.2.1<=11.6.3
F5 BIG-IP Access Policy Manager>=12.1.0<=12.1.3
F5 BIG-IP Access Policy Manager>=13.0.0<=13.1.0
F5 BIG-IP Application Security Manager>=11.2.1<=11.6.3
F5 BIG-IP Application Security Manager>=12.1.0<=12.1.3
F5 BIG-IP Application Security Manager>=13.0.0<=13.1.0
F5 BIG-IP Edge Gateway>=11.2.1<=11.6.3
F5 BIG-IP Edge Gateway>=12.1.0<=12.1.3
F5 BIG-IP Edge Gateway>=13.0.0<=13.1.0
F5 BIG-IP Global Traffic Manager>=11.2.1<=11.6.3
F5 BIG-IP Global Traffic Manager>=12.1.0<=12.1.3
F5 BIG-IP Global Traffic Manager>=13.0.0<=13.1.0
f5 big-ip link controller>=11.2.1<=11.6.3
f5 big-ip link controller>=12.1.0<=12.1.3
f5 big-ip link controller>=13.0.0<=13.1.0
F5 BIG-IP Policy Enforcement Manager>=11.2.1<=11.6.3
F5 BIG-IP Policy Enforcement Manager>=12.1.0<=12.1.3
F5 BIG-IP Policy Enforcement Manager>=13.0.0<=13.1.0
F5 BIG-IP WebAccelerator>=11.2.1<=11.6.3
F5 BIG-IP WebAccelerator>=12.1.0<=12.1.3
F5 BIG-IP WebAccelerator>=13.0.0<=13.1.0
F5 WebSafe>=11.2.1<=11.6.3
F5 WebSafe>=12.1.0<=12.1.3
F5 WebSafe>=13.0.0<=13.1.0
f5 big-ip domain name system>=11.2.1<=11.6.3
f5 big-ip domain name system>=12.1.0<=12.1.3
f5 big-ip domain name system>=13.0.0<=13.1.0

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Reference Links

Frequently Asked Questions

  • What is CVE-2018-5520?

    CVE-2018-5520 is a vulnerability that affects F5 BIG-IP systems and allows an administrative user to use the dig utility to gain unauthorized access to file system resources.

  • What is the severity of CVE-2018-5520?

    The severity of CVE-2018-5520 is medium, with a CVSS score of 4.4.

  • Which software versions are affected by CVE-2018-5520?

    CVE-2018-5520 affects F5 BIG-IP systems versions 11.2.1-11.6.3.1, 12.1.0-12.1.3.1, and 13.0.0-13.1.0.5 in Appliance mode.

  • How can an administrative user exploit CVE-2018-5520?

    An administrative user can exploit CVE-2018-5520 by using the dig utility to gain unauthorized access to file system resources.

  • Where can I find more information about CVE-2018-5520?

    You can find more information about CVE-2018-5520 on the SecurityTracker website and the F5 support website.

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