What’s Vulnerable › Vulnerabilities

CVE-2018-5519

• Severity: medium (CVSS 4.9 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: 2018-05-02 · updated 2026-06-17

Description

On F5 BIG-IP 13.0.0-13.1.0.5, 12.1.0-12.1.3.3, or 11.2.1-11.6.3.1, administrative users by way of undisclosed methods can exploit the ssldump utility to write to arbitrary file paths. For users who do not have Advanced Shell access (for example, any user when licensed for Appliance Mode), this allows more permissive file access than intended.

Affected products

• F5 BIG-IP APM: from 11.2.1 through 11.6.3; from 12.1.0 through 12.1.3; from 13.0.0 through 13.1.0
• BIG-IP: from 11.2.1 through 11.6.3; from 12.1.0 through 12.1.3; from 13.0.0 through 13.1.0
• F5 Big-Ip Analytics: from 11.2.1 through 11.6.3; from 12.1.0 through 12.1.3; from 13.0.0 through 13.1.0
• F5 Networks, Inc. BIG-IP (AAM): from 11.2.1 through 11.6.3; from 12.1.0 through 12.1.3; from 13.0.0 through 13.1.0
• BIG-IP ASM: from 11.2.1 through 11.6.3; from 12.1.0 through 12.1.3; from 13.0.0 through 13.1.0
• F5 BIG-IP DNS: from 11.2.1 through 11.6.3; from 12.1.0 through 12.1.3; from 13.0.0 through 13.1.0
• F5 Big-Ip Edge Gateway: from 11.2.1 through 11.6.3; from 12.1.0 through 12.1.3; from 13.0.0 through 13.1.0
• F5 Big-Ip Global Traffic Manager: from 11.2.1 through 11.6.3; from 12.1.0 through 12.1.3; from 13.0.0 through 13.1.0
• F5 Big-Ip Link Controller: from 11.2.1 through 11.6.3; from 12.1.0 through 12.1.3; from 13.0.0 through 13.1.0
• F5 BIG-IP (LTM): from 11.2.1 through 11.6.3; from 12.1.0 through 12.1.3; from 13.0.0 through 13.1.0
• F5 Networks, Inc. BIG-IP (PEM): from 11.2.1 through 11.6.3; from 12.1.0 through 12.1.3; from 13.0.0 through 13.1.0
• F5 Big-Ip Webaccelerator: from 11.2.1 through 11.6.3; from 12.1.0 through 12.1.3; from 13.0.0 through 13.1.0
• F5 Big-Ip Websafe: from 11.2.1 through 11.6.3; from 12.1.0 through 12.1.3; from 13.0.0 through 13.1.0

References

• http://www.securitytracker.com/id/1040803
• https://support.f5.com/csp/article/K46121888
• http://www.securitytracker.com/id/1040803
• https://support.f5.com/csp/article/K46121888

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