critical
9.8
Advisory Published
Updated

CVE-2018-5506

First published: Fri Apr 13 2018(Updated: )

In F5 BIG-IP 13.0.0, 12.1.0-12.1.2, 11.6.1, 11.5.1-11.5.5, or 11.2.1 the Apache modules apache_auth_token_mod and mod_auth_f5_auth_token.cpp allow possible unauthenticated bruteforce on the em_server_ip authorization parameter to obtain which SSL client certificates used for mutual authentication between BIG-IQ or Enterprise Manager (EM) and managed BIG-IP devices.

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<=12.1.3.1
F5 BIG-IP Local Traffic Manager=11.2.1
F5 BIG-IP Local Traffic Manager=11.6.1
F5 BIG-IP Local Traffic Manager=13.0.0
f5 big-ip application acceleration manager>=11.5.1<=11.5.5
f5 big-ip application acceleration manager>=12.1.0<=12.1.3.1
f5 big-ip application acceleration manager=11.2.1
f5 big-ip application acceleration manager=11.6.1
f5 big-ip application acceleration manager=13.0.0
F5 BIG-IP Advanced Firewall Manager>=11.5.1<=11.5.5
F5 BIG-IP Advanced Firewall Manager>=12.1.0<=12.1.3.1
F5 BIG-IP Advanced Firewall Manager=11.2.1
F5 BIG-IP Advanced Firewall Manager=11.6.1
F5 BIG-IP Advanced Firewall Manager=13.0.0
F5 BIG-IP Analytics>=11.5.1<=11.5.5
F5 BIG-IP Analytics>=12.1.0<=12.1.3.1
F5 BIG-IP Analytics=11.2.1
F5 BIG-IP Analytics=11.6.1
F5 BIG-IP Analytics=13.0.0
F5 Access Policy Manager>=11.5.1<=11.5.5
F5 Access Policy Manager>=12.1.0<=12.1.3.1
F5 Access Policy Manager=11.2.1
F5 Access Policy Manager=11.6.1
F5 Access Policy Manager=13.0.0
F5 Application Security Manager>=11.5.1<=11.5.5
F5 Application Security Manager>=12.1.0<=12.1.3.1
F5 Application Security Manager=11.2.1
F5 Application Security Manager=11.6.1
F5 Application Security Manager=13.0.0
F5 BIG-IP Edge Gateway>=11.5.1<=11.5.5
F5 BIG-IP Edge Gateway>=12.1.0<=12.1.3.1
F5 BIG-IP Edge Gateway=11.2.1
F5 BIG-IP Edge Gateway=11.6.1
F5 BIG-IP Edge Gateway=13.0.0
F5 BIG-IP Global Traffic Manager>=11.5.1<=11.5.5
F5 BIG-IP Global Traffic Manager>=12.1.0<=12.1.3.1
F5 BIG-IP Global Traffic Manager=11.2.1
F5 BIG-IP Global Traffic Manager=11.6.1
F5 BIG-IP Global Traffic Manager=13.0.0
F5 BIG-IP>=11.5.1<=11.5.5
F5 BIG-IP>=12.1.0<=12.1.3.1
F5 BIG-IP=11.2.1
F5 BIG-IP=11.6.1
F5 BIG-IP=13.0.0
F5 BIG-IP Policy Enforcement Manager>=11.5.1<=11.5.5
F5 BIG-IP Policy Enforcement Manager>=12.1.0<=12.1.3.1
F5 BIG-IP Policy Enforcement Manager=11.2.1
F5 BIG-IP Policy Enforcement Manager=11.6.1
F5 BIG-IP Policy Enforcement Manager=13.0.0
F5 BIG-IP WebAccelerator>=11.5.1<=11.5.5
F5 BIG-IP WebAccelerator>=12.1.0<=12.1.3.1
F5 BIG-IP WebAccelerator=11.2.1
F5 BIG-IP WebAccelerator=11.6.1
F5 BIG-IP WebAccelerator=13.0.0
F5 WebSafe>=11.5.1<=11.5.5
F5 WebSafe>=12.1.0<=12.1.3.1
F5 WebSafe=11.2.1
F5 WebSafe=11.6.1
F5 WebSafe=13.0.0
f5 big-ip domain name system>=11.5.1<=11.5.5
f5 big-ip domain name system>=12.1.0<=12.1.3.1
f5 big-ip domain name system=11.2.1
f5 big-ip domain name system=11.6.1
f5 big-ip domain name system=13.0.0

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2018-5506?

    CVE-2018-5506 is considered a high-severity vulnerability due to the potential for unauthenticated brute force attacks.

  • How do I fix CVE-2018-5506?

    To fix CVE-2018-5506, upgrade to F5 BIG-IP versions 13.0.1, 12.1.3.2, 12.1.2.4, or later.

  • Which F5 BIG-IP versions are affected by CVE-2018-5506?

    CVE-2018-5506 affects F5 BIG-IP versions 13.0.0, 12.1.0-12.1.2, 11.6.1, 11.5.1-11.5.5, and 11.2.1.

  • What type of attacks can CVE-2018-5506 facilitate?

    CVE-2018-5506 can facilitate unauthorized access through brute force attempts on the em_server_ip authorization parameter.

  • Is user authentication compromised in CVE-2018-5506?

    Yes, CVE-2018-5506 can allow potential attackers to bypass user authentication processes.

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