Improper Authentication in F5 Networks products - CVE-2020-5888

Vulnerability identifier: #VU27517

CSH Severity: Medium

CVSS v4: 5.3 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2020-5888

CWE-ID: CWE-287

Exploitation vector: Adjecent network

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to an error in TMM in Virtual Edition. A remote attacker on the local network can access local daemons and bypass port lockdown settings.

BIG-IP FPS
BIG-IP Analytics
BIG-IP AFM
BIG-IP APM
BIG-IP ASM
BIG-IP GTM
BIG-IP LTM
BIG-IP PEM
BIG-IP DNS
BIG-IP AAM
BIG-IP Link Controller
BIG-IP

Install updates from vendor's website.

BIG-IP FPS - addressed in versions 14.1.2.4, 15.0.1.3, 15.1.0.2
BIG-IP Analytics - addressed in versions 14.1.2.4, 15.0.1.3, 15.1.0.2
BIG-IP AFM - addressed in versions 14.1.2.4, 15.0.1.3, 15.1.0.2
BIG-IP APM - addressed in versions 14.1.2.4, 15.0.1.3, 15.1.0.2
BIG-IP ASM - addressed in versions 14.1.2.4, 15.0.1.3, 15.1.0.2
BIG-IP DNS - addressed in versions 14.1.2.4, 15.0.1.3, 15.1.0.2
BIG-IP AAM - addressed in versions 14.1.2.4, 15.0.1.3, 15.1.0.2
BIG-IP GTM - addressed in versions 14.1.2.4, 15.0.1.3, 15.1.0.2
BIG-IP LTM - addressed in versions 14.1.2.4, 15.0.1.3, 15.1.0.2
BIG-IP Link Controller - addressed in versions 14.1.2.4, 15.0.1.3, 15.1.0.2
BIG-IP PEM - addressed in versions 14.1.2.4, 15.0.1.3, 15.1.0.2
BIG-IP - addressed in versions 14.1.2.4, 15.0.1.3, 15.1.0.2

• https://support.f5.com/csp/article/K73274382

• Multiple vulnerabilities in F5 BIG-IP products