CVE-2018-5525

Severity: medium (CVSS 4.3 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.0% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2018-06-01 · updated 2026-06-17
Weakness: CWE-200

Description

A local file vulnerability exists in the F5 BIG-IP Configuration utility on versions 13.0.0, 12.1.0-12.1.2, 11.6.1-11.6.3.1, 11.5.1-11.5.5, or 11.2.1 that exposes files containing F5-provided data only and do not include any configuration data, proxied traffic, or other potentially sensitive customer data.

Affected products

F5 BIG-IP APM: from 11.2.1 through 11.5.5; from 11.6.0 through 11.6.3; from 12.1.0 before 12.1.3; 13.0.0 — fixed in 12.1.3
BIG-IP: from 11.2.1 through 11.5.5; from 11.6.0 through 11.6.3; from 12.1.0 before 12.1.3; 13.0.0 — fixed in 12.1.3
F5 Big-Ip Analytics: from 11.2.1 through 11.5.5; from 11.6.0 through 11.6.3; from 12.1.0 before 12.1.3; from 13.1.0 through 13.1.0.4; 13.0.0 — fixed in 12.1.3
F5 Networks, Inc. BIG-IP (AAM): from 11.2.1 through 11.5.5; from 11.6.0 through 11.6.3; from 12.1.0 before 12.1.3; 13.0.0 — fixed in 12.1.3
BIG-IP ASM: from 11.2.1 through 11.5.5; from 11.6.0 through 11.6.3; from 12.1.0 before 12.1.3; 13.0.0 — fixed in 12.1.3
F5 BIG-IP DNS: from 11.2.1 through 11.5.5; from 11.6.0 through 11.6.3; from 12.1.0 before 12.1.3; 13.0.0 — fixed in 12.1.3
F5 Big-Ip Edge Gateway: from 11.2.1 through 11.5.5; from 11.6.0 through 11.6.3; from 12.1.0 before 12.1.3; 13.0.0 — fixed in 12.1.3
F5 Big-Ip Fraud Protection Service: from 11.2.1 through 11.5.5; from 11.6.0 through 11.6.3; from 12.1.0 before 12.1.3; 13.0.0 — fixed in 12.1.3
F5 Big-Ip Global Traffic Manager: from 11.2.1 through 11.5.5; from 11.6.0 through 11.6.3; from 12.1.0 before 12.1.3; 13.0.0 — fixed in 12.1.3
F5 Big-Ip Link Controller: from 11.2.1 through 11.5.5; from 11.6.0 through 11.6.3; from 12.1.0 before 12.1.3; 13.0.0 — fixed in 12.1.3
F5 BIG-IP (LTM): from 11.2.1 through 11.5.5; from 11.6.0 through 11.6.3; from 12.1.0 before 12.1.3; 13.0.0 — fixed in 12.1.3
F5 Networks, Inc. BIG-IP (PEM): from 11.2.1 through 11.5.5; from 11.6.0 through 11.6.3; from 12.1.0 before 12.1.3; 13.0.0 — fixed in 12.1.3
F5 Big-Ip Webaccelerator: from 11.2.1 through 11.5.5; from 11.6.0 through 11.6.3; from 12.1.0 before 12.1.3; 13.0.0 — fixed in 12.1.3

How to fix

Upgrade to a fixed version: F5 BIG-IP APM 12.1.3; BIG-IP 12.1.3; F5 Big-Ip Analytics 12.1.3; F5 Networks, Inc. BIG-IP (AAM) 12.1.3; BIG-IP ASM 12.1.3; F5 BIG-IP DNS 12.1.3; F5 Big-Ip Edge Gateway 12.1.3; F5 Big-Ip Fraud Protection Service 12.1.3; F5 Big-Ip Global Traffic Manager 12.1.3; F5 Big-Ip Link Controller 12.1.3; F5 BIG-IP (LTM) 12.1.3; F5 Networks, Inc. BIG-IP (PEM) 12.1.3. Check the vendor advisory for mitigations.

References

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