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TI-2018-04025 Aliases CVE-2018-5520GHSA-9pmr-j55p-8757

Incorrect authorization in F5 BIG-IP

Priority LOW 22CWE-863Published · Updated

Key facts

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

Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-863.

Summary

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.

Why it matters now

EPSS 0.00985 62nd 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)13.0.0-13.1.0.5; 12.1.0-12.1.3.1; 11.2.1-11.6.3.1—No fix listedCNA
  • BIG-IP (LTM, AAM, AFM, Analytics, APM, ASM, DNS, Edge Gateway, GTM, Link Controller, PEM, WebAccelerator, WebSafe) VendorF5 Affected 13.0.0-13.1.0.5; 12.1.0-12.1.3.1; 11.2.1-11.6.3.1 Fixed in — No fix listed CNA

CPE configurations NVD · 13

CPEVersionsRoleVendor
cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:*11.2.1 – 11.6.3; 12.1.0 – 12.1.3; 13.0.0 – 13.1.0VulnerableF5
cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:*11.2.1 – 11.6.3; 12.1.0 – 12.1.3; 13.0.0 – 13.1.0VulnerableF5
cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*11.2.1 – 11.6.3; 12.1.0 – 12.1.3; 13.0.0 – 13.1.0VulnerableF5
cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:*11.2.1 – 11.6.3; 12.1.0 – 12.1.3; 13.0.0 – 13.1.0VulnerableF5
cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*11.2.1 – 11.6.3; 12.1.0 – 12.1.3; 13.0.0 – 13.1.0VulnerableF5
cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*11.2.1 – 11.6.3; 12.1.0 – 12.1.3; 13.0.0 – 13.1.0VulnerableF5
cpe:2.3:a:f5:big-ip_edge_gateway:*:*:*:*:*:*:*:*11.2.1 – 11.6.3; 12.1.0 – 12.1.3; 13.0.0 – 13.1.0VulnerableF5
cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:*11.2.1 – 11.6.3; 12.1.0 – 12.1.3; 13.0.0 – 13.1.0VulnerableF5
cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:*11.2.1 – 11.6.3; 12.1.0 – 12.1.3; 13.0.0 – 13.1.0VulnerableF5
cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:*11.2.1 – 11.6.3; 12.1.0 – 12.1.3; 13.0.0 – 13.1.0VulnerableF5
  • cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* Versions 11.2.1 – 11.6.3; 12.1.0 – 12.1.3; 13.0.0 – 13.1.0 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:* Versions 11.2.1 – 11.6.3; 12.1.0 – 12.1.3; 13.0.0 – 13.1.0 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:* Versions 11.2.1 – 11.6.3; 12.1.0 – 12.1.3; 13.0.0 – 13.1.0 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:* Versions 11.2.1 – 11.6.3; 12.1.0 – 12.1.3; 13.0.0 – 13.1.0 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* Versions 11.2.1 – 11.6.3; 12.1.0 – 12.1.3; 13.0.0 – 13.1.0 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:* Versions 11.2.1 – 11.6.3; 12.1.0 – 12.1.3; 13.0.0 – 13.1.0 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_edge_gateway:*:*:*:*:*:*:*:* Versions 11.2.1 – 11.6.3; 12.1.0 – 12.1.3; 13.0.0 – 13.1.0 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:* Versions 11.2.1 – 11.6.3; 12.1.0 – 12.1.3; 13.0.0 – 13.1.0 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:* Versions 11.2.1 – 11.6.3; 12.1.0 – 12.1.3; 13.0.0 – 13.1.0 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:* Versions 11.2.1 – 11.6.3; 12.1.0 – 12.1.3; 13.0.0 – 13.1.0 Vulnerable ·F5
Show 3 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:f5:big-ip_webaccelerator:*:*:*:*:*:*:*:*11.2.1 – 11.6.3; 12.1.0 – 12.1.3; 13.0.0 – 13.1.0VulnerableF5
cpe:2.3:a:f5:big-ip_websafe:*:*:*:*:*:*:*:*11.2.1 – 11.6.3; 12.1.0 – 12.1.3; 13.0.0 – 13.1.0VulnerableF5
cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:*11.2.1 – 11.6.3; 12.1.0 – 12.1.3; 13.0.0 – 13.1.0VulnerableF5
  • cpe:2.3:a:f5:big-ip_webaccelerator:*:*:*:*:*:*:*:* Versions 11.2.1 – 11.6.3; 12.1.0 – 12.1.3; 13.0.0 – 13.1.0 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_websafe:*:*:*:*:*:*:*:* Versions 11.2.1 – 11.6.3; 12.1.0 – 12.1.3; 13.0.0 – 13.1.0 Vulnerable ·F5
  • cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:* Versions 11.2.1 – 11.6.3; 12.1.0 – 12.1.3; 13.0.0 – 13.1.0 Vulnerable ·F5

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-5520
  2. 2026-10-03 Alias added: GHSA-9pmr-j55p-8757

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