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CVE-2018-5506

UnknownEPSS 0.73%

Last modified

CVE-2018-5506 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 0.73% chance of exploitation in the next 30 days.

Description

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.

Metrics

EPSS Probability
0.73%

49.6th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersions
F5Big-Ip Local Traffic Manager>= 11.5.1, <= 11.5.5
F5Big-Ip Local Traffic Manager>= 12.1.0, <= 12.1.3.1
F5Big-Ip Local Traffic Manager11.2.1
F5Big-Ip Local Traffic Manager11.6.1
F5Big-Ip Local Traffic Manager13.0.0
F5Big-Ip Application Acceleration Manager>= 11.5.1, <= 11.5.5
F5Big-Ip Application Acceleration Manager>= 12.1.0, <= 12.1.3.1
F5Big-Ip Application Acceleration Manager11.2.1
F5Big-Ip Application Acceleration Manager11.6.1
F5Big-Ip Application Acceleration Manager13.0.0
F5Big-Ip Advanced Firewall Manager>= 11.5.1, <= 11.5.5
F5Big-Ip Advanced Firewall Manager>= 12.1.0, <= 12.1.3.1
F5Big-Ip Advanced Firewall Manager11.2.1
F5Big-Ip Advanced Firewall Manager11.6.1
F5Big-Ip Advanced Firewall Manager13.0.0
F5Big-Ip Analytics>= 11.5.1, <= 11.5.5
F5Big-Ip Analytics>= 12.1.0, <= 12.1.3.1
F5Big-Ip Analytics11.2.1
F5Big-Ip Analytics11.6.1
F5Big-Ip Analytics13.0.0
F5Big-Ip Access Policy Manager>= 11.5.1, <= 11.5.5
F5Big-Ip Access Policy Manager>= 12.1.0, <= 12.1.3.1
F5Big-Ip Access Policy Manager11.2.1
F5Big-Ip Access Policy Manager11.6.1
F5Big-Ip Access Policy Manager13.0.0
F5Big-Ip Application Security Manager>= 11.5.1, <= 11.5.5
F5Big-Ip Application Security Manager>= 12.1.0, <= 12.1.3.1
F5Big-Ip Application Security Manager11.2.1
F5Big-Ip Application Security Manager11.6.1
F5Big-Ip Application Security Manager13.0.0
F5Big-Ip Edge Gateway>= 11.5.1, <= 11.5.5
F5Big-Ip Edge Gateway>= 12.1.0, <= 12.1.3.1
F5Big-Ip Edge Gateway11.2.1
F5Big-Ip Edge Gateway11.6.1
F5Big-Ip Edge Gateway13.0.0
F5Big-Ip Global Traffic Manager>= 11.5.1, <= 11.5.5
F5Big-Ip Global Traffic Manager>= 12.1.0, <= 12.1.3.1
F5Big-Ip Global Traffic Manager11.2.1
F5Big-Ip Global Traffic Manager11.6.1
F5Big-Ip Global Traffic Manager13.0.0
F5Big-Ip Link Controller>= 11.5.1, <= 11.5.5
F5Big-Ip Link Controller>= 12.1.0, <= 12.1.3.1
F5Big-Ip Link Controller11.2.1
F5Big-Ip Link Controller11.6.1
F5Big-Ip Link Controller13.0.0
F5Big-Ip Policy Enforcement Manager>= 11.5.1, <= 11.5.5
F5Big-Ip Policy Enforcement Manager>= 12.1.0, <= 12.1.3.1
F5Big-Ip Policy Enforcement Manager11.2.1
F5Big-Ip Policy Enforcement Manager11.6.1
F5Big-Ip Policy Enforcement Manager13.0.0

Showing 50 of 65 affected configurations. See NVD for the full list.

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2018-5506?
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.
How severe is CVE-2018-5506?
Severity scoring for CVE-2018-5506 is pending analysis. The EPSS model estimates a 0.73% probability of exploitation in the next 30 days.
How do I fix CVE-2018-5506?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST