CVE-2018-5506

CRITICAL

F5 BIG-IP <13.0.0, 12.1.2, 11.6.1, 11.5.5 - Unauthenticated Bruteforce

Title source: llm
STIX 2.1

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.

References (1)

Core 1
Core References
Vendor Advisory x_refsource_confirm
https://support.f5.com/csp/article/K65355492

Scores

CVSS v3 9.8
EPSS 0.0019
EPSS Percentile 40.9%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

Status published
Products (50)
f5/big-ip_access_policy_manager 11.2.1
f5/big-ip_access_policy_manager 11.6.1
f5/big-ip_access_policy_manager 13.0.0
f5/big-ip_access_policy_manager 11.5.1 - 11.5.5
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_advanced_firewall_manager 11.5.1 - 11.5.5
f5/big-ip_analytics 11.2.1
f5/big-ip_analytics 11.6.1
... and 40 more
Published Apr 13, 2018
Tracked Since Feb 18, 2026