Improper Certificate Validation in F5 Networks products - CVE-2020-5913
Published: August 26, 2020
Vulnerability identifier: #VU46071
CSH Severity: Medium
CVSS v4: 9.1 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-5913
CWE-ID: CWE-295
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a man-in-the-middle (MitM) attack.
The vulnerability exists due to the BIG-IP Server SSL profile ignores revoked certificates, even when a valid CRL is present. A remote attacker can perform a MitM attack on the connections.
Affected software
BIG-IP FPS
BIG-IP GTM
BIG-IP AFM
BIG-IP Analytics
BIG-IP PEM
BIG-IP APM
BIG-IP ASM
BIG-IP LTM
BIG-IP SSLO
BIG-IP
BIG-IP DDHD
BIG-IP Link Controller
BIG-IP AAM
BIG-IP DNS
BIG-IP Advanced WAF
BIG-IP GTM
BIG-IP AFM
BIG-IP Analytics
BIG-IP PEM
BIG-IP APM
BIG-IP ASM
BIG-IP LTM
BIG-IP SSLO
BIG-IP
BIG-IP DDHD
BIG-IP Link Controller
BIG-IP AAM
BIG-IP DNS
BIG-IP Advanced WAF
How to mitigate CVE-2020-5913
Install updates from vendor's website.
BIG-IP FPS - addressed in versions 12.1.5.2, 14.1.2-0.89.37, 14.1.2.5, 15.1.0.2, 16.0.0
BIG-IP GTM - addressed in versions 12.1.5.2, 14.1.2-0.89.37, 14.1.2.5, 15.1.0.2, 16.0.0
BIG-IP AFM - addressed in versions 12.1.5.2, 14.1.2-0.89.37, 14.1.2.5, 15.1.0.2, 16.0.0
BIG-IP Analytics - addressed in versions 12.1.5.2, 14.1.2-0.89.37, 14.1.2.5, 15.1.0.2, 16.0.0
BIG-IP SSLO - addressed in versions 12.1.5.2, 14.1.2-0.89.37, 14.1.2.5, 15.1.0.2, 16.0.0
BIG-IP PEM - addressed in versions 12.1.5.2, 14.1.2-0.89.37, 14.1.2.5, 15.1.0.2, 16.0.0
BIG-IP APM - addressed in versions 12.1.5.2, 14.1.2-0.89.37, 14.1.2.5, 15.1.0.2, 16.0.0
BIG-IP Link Controller - addressed in versions 12.1.5.2, 14.1.2-0.89.37, 14.1.2.5, 15.1.0.2, 16.0.0
BIG-IP - addressed in versions 12.1.5.2, 14.1.2-0.89.37, 14.1.2.5, 15.1.0.2, 16.0.0
BIG-IP ASM - addressed in versions 12.1.5.2, 14.1.2-0.89.37, 14.1.2.5, 15.1.0.2, 16.0.0
BIG-IP DDHD - addressed in versions 12.1.5.2, 14.1.2-0.89.37, 14.1.2.5, 15.1.0.2, 16.0.0
BIG-IP Advanced WAF - addressed in versions 12.1.5.2, 14.1.2-0.89.37, 14.1.2.5, 15.1.0.2, 16.0.0
BIG-IP AAM - addressed in versions 12.1.5.2, 14.1.2-0.89.37, 14.1.2.5, 15.1.0.2, 16.0.0
BIG-IP DNS - addressed in versions 12.1.5.2, 14.1.2-0.89.37, 14.1.2.5, 15.1.0.2, 16.0.0
BIG-IP LTM - addressed in versions 12.1.5.2, 14.1.2-0.89.37, 14.1.2.5, 15.1.0.2, 16.0.0
BIG-IP GTM - addressed in versions 12.1.5.2, 14.1.2-0.89.37, 14.1.2.5, 15.1.0.2, 16.0.0
BIG-IP AFM - addressed in versions 12.1.5.2, 14.1.2-0.89.37, 14.1.2.5, 15.1.0.2, 16.0.0
BIG-IP Analytics - addressed in versions 12.1.5.2, 14.1.2-0.89.37, 14.1.2.5, 15.1.0.2, 16.0.0
BIG-IP SSLO - addressed in versions 12.1.5.2, 14.1.2-0.89.37, 14.1.2.5, 15.1.0.2, 16.0.0
BIG-IP PEM - addressed in versions 12.1.5.2, 14.1.2-0.89.37, 14.1.2.5, 15.1.0.2, 16.0.0
BIG-IP APM - addressed in versions 12.1.5.2, 14.1.2-0.89.37, 14.1.2.5, 15.1.0.2, 16.0.0
BIG-IP Link Controller - addressed in versions 12.1.5.2, 14.1.2-0.89.37, 14.1.2.5, 15.1.0.2, 16.0.0
BIG-IP - addressed in versions 12.1.5.2, 14.1.2-0.89.37, 14.1.2.5, 15.1.0.2, 16.0.0
BIG-IP ASM - addressed in versions 12.1.5.2, 14.1.2-0.89.37, 14.1.2.5, 15.1.0.2, 16.0.0
BIG-IP DDHD - addressed in versions 12.1.5.2, 14.1.2-0.89.37, 14.1.2.5, 15.1.0.2, 16.0.0
BIG-IP Advanced WAF - addressed in versions 12.1.5.2, 14.1.2-0.89.37, 14.1.2.5, 15.1.0.2, 16.0.0
BIG-IP AAM - addressed in versions 12.1.5.2, 14.1.2-0.89.37, 14.1.2.5, 15.1.0.2, 16.0.0
BIG-IP DNS - addressed in versions 12.1.5.2, 14.1.2-0.89.37, 14.1.2.5, 15.1.0.2, 16.0.0
BIG-IP LTM - addressed in versions 12.1.5.2, 14.1.2-0.89.37, 14.1.2.5, 15.1.0.2, 16.0.0