Arbitrary file upload in F5 Networks products - CVE-2020-5880

Vulnerability identifier: #VU27467

CSH Severity: Medium

CVSS v4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2020-5880

CWE-ID: CWE-434

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to and error in the "restjavad" process which may expose a way to upload arbitrary files on the BIG-IP system, bypassing the authorization system. A remote authenticated attacker can upload arbitrary files, fill the disk storage and make the BIG-IP host inoperable.

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

Install updates from vendor's website.

BIG-IP DNS - addressed in versions 14.1.2.4, 15.1.0
BIG-IP AFM - addressed in versions 14.1.2.4, 15.1.0
BIG-IP Analytics - addressed in versions 14.1.2.4, 15.1.0
BIG-IP APM - addressed in versions 14.1.2.4, 15.1.0
BIG-IP AAM - addressed in versions 14.1.2.4, 15.1.0
BIG-IP ASM - addressed in versions 14.1.2.4, 15.1.0
BIG-IP PEM - addressed in versions 14.1.2.4, 15.1.0
BIG-IP FPS - addressed in versions 14.1.2.4, 15.1.0
BIG-IP LTM - addressed in versions 14.1.2.4, 15.1.0
BIG-IP - addressed in versions 14.1.2.4, 15.1.0
BIG-IP GTM - addressed in versions 14.1.2.4, 15.1.0
BIG-IP Link Controller - addressed in versions 14.1.2.4, 15.1.0

• https://support.f5.com/csp/article/K94325657

• Multiple vulnerabilities in F5 BIG-IP products