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TI-2018-04011 Aliases CVE-2018-5506GHSA-cv35-357j-grvj

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…

Priority MEDIUM 43Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA.

Summary

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.

Why it matters now

EPSS 0.00716 54th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
F5BIG-IP (LTM, AAM, AFM, Analytics, APM, ASM, DNS, Edge Gateway, GTM, Link Controller, PEM, WebAccelerator, WebSafe)13.0.0; 12.1.0-12.1.2; 11.6.1; 11.5.1-11.5.5; 11.2.1—No fix listedCNA
  • BIG-IP (LTM, AAM, AFM, Analytics, APM, ASM, DNS, Edge Gateway, GTM, Link Controller, PEM, WebAccelerator, WebSafe) VendorF5 Affected 13.0.0; 12.1.0-12.1.2; 11.6.1; 11.5.1-11.5.5; 11.2.1 Fixed in — No fix listed CNA

CPE configurations NVD · 52

CPEVersionsRoleVendor
cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:*11.5.1 – 11.5.5; 12.1.0 – 12.1.3.1VulnerableF5
cpe:2.3:a:f5:big-ip_local_traffic_manager:11.2.1:*:*:*:*:*:*:*11.2.1VulnerableF5
cpe:2.3:a:f5:big-ip_local_traffic_manager:11.6.1:*:*:*:*:*:*:*11.6.1VulnerableF5
cpe:2.3:a:f5:big-ip_local_traffic_manager:13.0.0:*:*:*:*:*:*:*13.0.0VulnerableF5
cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:*11.5.1 – 11.5.5; 12.1.0 – 12.1.3.1VulnerableF5
cpe:2.3:a:f5:big-ip_application_acceleration_manager:11.2.1:*:*:*:*:*:*:*11.2.1VulnerableF5
cpe:2.3:a:f5:big-ip_application_acceleration_manager:11.6.1:*:*:*:*:*:*:*11.6.1VulnerableF5
cpe:2.3:a:f5:big-ip_application_acceleration_manager:13.0.0:*:*:*:*:*:*:*13.0.0VulnerableF5
cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*11.5.1 – 11.5.5; 12.1.0 – 12.1.3.1VulnerableF5
cpe:2.3:a:f5:big-ip_advanced_firewall_manager:11.2.1:*:*:*:*:*:*:*11.2.1VulnerableF5
  • cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* Versions 11.5.1 – 11.5.5; 12.1.0 – 12.1.3.1 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_local_traffic_manager:11.2.1:*:*:*:*:*:*:* Versions 11.2.1 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_local_traffic_manager:11.6.1:*:*:*:*:*:*:* Versions 11.6.1 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_local_traffic_manager:13.0.0:*:*:*:*:*:*:* Versions 13.0.0 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:* Versions 11.5.1 – 11.5.5; 12.1.0 – 12.1.3.1 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_application_acceleration_manager:11.2.1:*:*:*:*:*:*:* Versions 11.2.1 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_application_acceleration_manager:11.6.1:*:*:*:*:*:*:* Versions 11.6.1 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_application_acceleration_manager:13.0.0:*:*:*:*:*:*:* Versions 13.0.0 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:* Versions 11.5.1 – 11.5.5; 12.1.0 – 12.1.3.1 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_advanced_firewall_manager:11.2.1:*:*:*:*:*:*:* Versions 11.2.1 Vulnerable ·F5
Show 42 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:f5:big-ip_advanced_firewall_manager:11.6.1:*:*:*:*:*:*:*11.6.1VulnerableF5
cpe:2.3:a:f5:big-ip_advanced_firewall_manager:13.0.0:*:*:*:*:*:*:*13.0.0VulnerableF5
cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:*11.5.1 – 11.5.5; 12.1.0 – 12.1.3.1VulnerableF5
cpe:2.3:a:f5:big-ip_analytics:11.2.1:*:*:*:*:*:*:*11.2.1VulnerableF5
cpe:2.3:a:f5:big-ip_analytics:11.6.1:*:*:*:*:*:*:*11.6.1VulnerableF5
cpe:2.3:a:f5:big-ip_analytics:13.0.0:*:*:*:*:*:*:*13.0.0VulnerableF5
cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*11.5.1 – 11.5.5; 12.1.0 – 12.1.3.1VulnerableF5
cpe:2.3:a:f5:big-ip_access_policy_manager:11.2.1:*:*:*:*:*:*:*11.2.1VulnerableF5
cpe:2.3:a:f5:big-ip_access_policy_manager:11.6.1:*:*:*:*:*:*:*11.6.1VulnerableF5
cpe:2.3:a:f5:big-ip_access_policy_manager:13.0.0:*:*:*:*:*:*:*13.0.0VulnerableF5
cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*11.5.1 – 11.5.5; 12.1.0 – 12.1.3.1VulnerableF5
cpe:2.3:a:f5:big-ip_application_security_manager:11.2.1:*:*:*:*:*:*:*11.2.1VulnerableF5
cpe:2.3:a:f5:big-ip_application_security_manager:11.6.1:*:*:*:*:*:*:*11.6.1VulnerableF5
cpe:2.3:a:f5:big-ip_application_security_manager:13.0.0:*:*:*:*:*:*:*13.0.0VulnerableF5
cpe:2.3:a:f5:big-ip_edge_gateway:*:*:*:*:*:*:*:*11.5.1 – 11.5.5; 12.1.0 – 12.1.3.1VulnerableF5
cpe:2.3:a:f5:big-ip_edge_gateway:11.2.1:*:*:*:*:*:*:*11.2.1VulnerableF5
cpe:2.3:a:f5:big-ip_edge_gateway:11.6.1:*:*:*:*:*:*:*11.6.1VulnerableF5
cpe:2.3:a:f5:big-ip_edge_gateway:13.0.0:*:*:*:*:*:*:*13.0.0VulnerableF5
cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:*11.5.1 – 11.5.5; 12.1.0 – 12.1.3.1VulnerableF5
cpe:2.3:a:f5:big-ip_global_traffic_manager:11.2.1:*:*:*:*:*:*:*11.2.1VulnerableF5
cpe:2.3:a:f5:big-ip_global_traffic_manager:11.6.1:*:*:*:*:*:*:*11.6.1VulnerableF5
cpe:2.3:a:f5:big-ip_global_traffic_manager:13.0.0:*:*:*:*:*:*:*13.0.0VulnerableF5
cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:*11.5.1 – 11.5.5; 12.1.0 – 12.1.3.1VulnerableF5
cpe:2.3:a:f5:big-ip_link_controller:11.2.1:*:*:*:*:*:*:*11.2.1VulnerableF5
cpe:2.3:a:f5:big-ip_link_controller:11.6.1:*:*:*:*:*:*:*11.6.1VulnerableF5
cpe:2.3:a:f5:big-ip_link_controller:13.0.0:*:*:*:*:*:*:*13.0.0VulnerableF5
cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:*11.5.1 – 11.5.5; 12.1.0 – 12.1.3.1VulnerableF5
cpe:2.3:a:f5:big-ip_policy_enforcement_manager:11.2.1:*:*:*:*:*:*:*11.2.1VulnerableF5
cpe:2.3:a:f5:big-ip_policy_enforcement_manager:11.6.1:*:*:*:*:*:*:*11.6.1VulnerableF5
cpe:2.3:a:f5:big-ip_policy_enforcement_manager:13.0.0:*:*:*:*:*:*:*13.0.0VulnerableF5
cpe:2.3:a:f5:big-ip_webaccelerator:*:*:*:*:*:*:*:*11.5.1 – 11.5.5; 12.1.0 – 12.1.3.1VulnerableF5
cpe:2.3:a:f5:big-ip_webaccelerator:11.2.1:*:*:*:*:*:*:*11.2.1VulnerableF5
cpe:2.3:a:f5:big-ip_webaccelerator:11.6.1:*:*:*:*:*:*:*11.6.1VulnerableF5
cpe:2.3:a:f5:big-ip_webaccelerator:13.0.0:*:*:*:*:*:*:*13.0.0VulnerableF5
cpe:2.3:a:f5:big-ip_websafe:*:*:*:*:*:*:*:*11.5.1 – 11.5.5; 12.1.0 – 12.1.3.1VulnerableF5
cpe:2.3:a:f5:big-ip_websafe:11.2.1:*:*:*:*:*:*:*11.2.1VulnerableF5
cpe:2.3:a:f5:big-ip_websafe:11.6.1:*:*:*:*:*:*:*11.6.1VulnerableF5
cpe:2.3:a:f5:big-ip_websafe:13.0.0:*:*:*:*:*:*:*13.0.0VulnerableF5
cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:*11.5.1 – 11.5.5; 12.1.0 – 12.1.3.1VulnerableF5
cpe:2.3:a:f5:big-ip_domain_name_system:11.2.1:*:*:*:*:*:*:*11.2.1VulnerableF5
cpe:2.3:a:f5:big-ip_domain_name_system:11.6.1:*:*:*:*:*:*:*11.6.1VulnerableF5
cpe:2.3:a:f5:big-ip_domain_name_system:13.0.0:*:*:*:*:*:*:*13.0.0VulnerableF5
  • cpe:2.3:a:f5:big-ip_advanced_firewall_manager:11.6.1:*:*:*:*:*:*:* Versions 11.6.1 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_advanced_firewall_manager:13.0.0:*:*:*:*:*:*:* Versions 13.0.0 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:* Versions 11.5.1 – 11.5.5; 12.1.0 – 12.1.3.1 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_analytics:11.2.1:*:*:*:*:*:*:* Versions 11.2.1 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_analytics:11.6.1:*:*:*:*:*:*:* Versions 11.6.1 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_analytics:13.0.0:*:*:*:*:*:*:* Versions 13.0.0 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* Versions 11.5.1 – 11.5.5; 12.1.0 – 12.1.3.1 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_access_policy_manager:11.2.1:*:*:*:*:*:*:* Versions 11.2.1 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_access_policy_manager:11.6.1:*:*:*:*:*:*:* Versions 11.6.1 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_access_policy_manager:13.0.0:*:*:*:*:*:*:* Versions 13.0.0 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:* Versions 11.5.1 – 11.5.5; 12.1.0 – 12.1.3.1 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_application_security_manager:11.2.1:*:*:*:*:*:*:* Versions 11.2.1 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_application_security_manager:11.6.1:*:*:*:*:*:*:* Versions 11.6.1 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_application_security_manager:13.0.0:*:*:*:*:*:*:* Versions 13.0.0 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_edge_gateway:*:*:*:*:*:*:*:* Versions 11.5.1 – 11.5.5; 12.1.0 – 12.1.3.1 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_edge_gateway:11.2.1:*:*:*:*:*:*:* Versions 11.2.1 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_edge_gateway:11.6.1:*:*:*:*:*:*:* Versions 11.6.1 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_edge_gateway:13.0.0:*:*:*:*:*:*:* Versions 13.0.0 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:* Versions 11.5.1 – 11.5.5; 12.1.0 – 12.1.3.1 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_global_traffic_manager:11.2.1:*:*:*:*:*:*:* Versions 11.2.1 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_global_traffic_manager:11.6.1:*:*:*:*:*:*:* Versions 11.6.1 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_global_traffic_manager:13.0.0:*:*:*:*:*:*:* Versions 13.0.0 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:* Versions 11.5.1 – 11.5.5; 12.1.0 – 12.1.3.1 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_link_controller:11.2.1:*:*:*:*:*:*:* Versions 11.2.1 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_link_controller:11.6.1:*:*:*:*:*:*:* Versions 11.6.1 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_link_controller:13.0.0:*:*:*:*:*:*:* Versions 13.0.0 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:* Versions 11.5.1 – 11.5.5; 12.1.0 – 12.1.3.1 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_policy_enforcement_manager:11.2.1:*:*:*:*:*:*:* Versions 11.2.1 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_policy_enforcement_manager:11.6.1:*:*:*:*:*:*:* Versions 11.6.1 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_policy_enforcement_manager:13.0.0:*:*:*:*:*:*:* Versions 13.0.0 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_webaccelerator:*:*:*:*:*:*:*:* Versions 11.5.1 – 11.5.5; 12.1.0 – 12.1.3.1 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_webaccelerator:11.2.1:*:*:*:*:*:*:* Versions 11.2.1 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_webaccelerator:11.6.1:*:*:*:*:*:*:* Versions 11.6.1 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_webaccelerator:13.0.0:*:*:*:*:*:*:* Versions 13.0.0 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_websafe:*:*:*:*:*:*:*:* Versions 11.5.1 – 11.5.5; 12.1.0 – 12.1.3.1 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_websafe:11.2.1:*:*:*:*:*:*:* Versions 11.2.1 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_websafe:11.6.1:*:*:*:*:*:*:* Versions 11.6.1 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_websafe:13.0.0:*:*:*:*:*:*:* Versions 13.0.0 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:* Versions 11.5.1 – 11.5.5; 12.1.0 – 12.1.3.1 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_domain_name_system:11.2.1:*:*:*:*:*:*:* Versions 11.2.1 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_domain_name_system:11.6.1:*:*:*:*:*:*:* Versions 11.6.1 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_domain_name_system:13.0.0:*:*:*:*:*:*:* Versions 13.0.0 Vulnerable ·F5

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-5506
  2. 2026-10-03 Alias added: GHSA-cv35-357j-grvj

References

Advisory 1

  • TI-2023-25230 BIG-IP Configuration utility unauthenticated remote code execution vulnerability KEVCVSS 3.1CRITICAL 9.8
  • TI-2022-01269 Missing authentication in F5 BIG-IP KEVCVSS 3.1CRITICAL 9.8
  • TI-2021-05850 Memory corruption in BIG-IP KEVCVSS 3.1CRITICAL 9.8
  • TI-2021-05845 Server-side request forgery in BIG-IP; BIG-IQ KEVCVSS 3.1CRITICAL 9.8
  • TI-2020-04820 Path traversal in BIG-IP KEVCVSS 3.1CRITICAL 9.8
  • TI-2014-05975 GNU Bash through 4.3 bash43-025 processes trailing strings after certain malformed… KEVCVSS 3.1CRITICAL 9.8
See all 629 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences