Input validation error in F5 Networks products - CVE-2021-23045
Published: August 25, 2021
Vulnerability identifier: #VU56088
CSH Severity: Low
CVSS v4: 6 [CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-23045
CWE-ID: CWE-20
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input in the Traffic Management Microkernel (TMM). A remote attacker on the local network can pass specially crafted input to the application and perform a denial of service (DoS) attack.
Affected software
BIG-IP
BIG-IP DDHD
BIG-IP SSLO
BIG-IP FPS
BIG-IP AFM
BIG-IP PEM
BIG-IP ASM
BIG-IP LTM
BIG-IP Analytics
BIG-IP GTM
BIG-IP APM
BIG-IP Link Controller
BIG-IP AAM
BIG-IP DNS
BIG-IP Advanced WAF
BIG-IP DDHD
BIG-IP SSLO
BIG-IP FPS
BIG-IP AFM
BIG-IP PEM
BIG-IP ASM
BIG-IP LTM
BIG-IP Analytics
BIG-IP GTM
BIG-IP APM
BIG-IP Link Controller
BIG-IP AAM
BIG-IP DNS
BIG-IP Advanced WAF
How to mitigate CVE-2021-23045
Install updates from vendor's website.
BIG-IP - addressed in versions 13.1.4.1, 14.1.4.3, 15.1.3.1, 16.0.1.2, 16.1.0
BIG-IP FPS - addressed in versions 13.1.4.1, 14.1.4.3, 15.1.3.1, 16.0.1.2, 16.1.0
BIG-IP DDHD - addressed in versions 13.1.4.1, 14.1.4.3, 15.1.3.1, 16.0.1.2, 16.1.0
BIG-IP Link Controller - addressed in versions 13.1.4.1, 14.1.4.3, 15.1.3.1, 16.0.1.2, 16.1.0
BIG-IP AFM - addressed in versions 13.1.4.1, 14.1.4.3, 15.1.3.1, 16.0.1.2, 16.1.0
BIG-IP Advanced WAF - addressed in versions 13.1.4.1, 14.1.4.3, 15.1.3.1, 16.0.1.2, 16.1.0
BIG-IP PEM - addressed in versions 13.1.4.1, 14.1.4.3, 15.1.3.1, 16.0.1.2, 16.1.0
BIG-IP SSLO - addressed in versions 13.1.4.1, 14.1.4.3, 15.1.3.1, 16.0.1.2, 16.1.0
BIG-IP AAM - addressed in versions 13.1.4.1, 14.1.4.3, 15.1.3.1, 16.0.1.2, 16.1.0
BIG-IP DNS - addressed in versions 13.1.4.1, 14.1.4.3, 15.1.3.1, 16.0.1.2, 16.1.0
BIG-IP ASM - addressed in versions 13.1.4.1, 14.1.4.3, 15.1.3.1, 16.0.1.2, 16.1.0
BIG-IP LTM - addressed in versions 13.1.4.1, 14.1.4.3, 15.1.3.1, 16.0.1.2, 16.1.0
BIG-IP Analytics - addressed in versions 13.1.4.1, 14.1.4.3, 15.1.3.1, 16.0.1.2, 16.1.0
BIG-IP GTM - addressed in versions 13.1.4.1, 14.1.4.3, 15.1.3.1, 16.0.1.2, 16.1.0
BIG-IP APM - addressed in versions 13.1.4.1, 14.1.4.3, 15.1.3.1, 16.0.1.2, 16.1.0
BIG-IP FPS - addressed in versions 13.1.4.1, 14.1.4.3, 15.1.3.1, 16.0.1.2, 16.1.0
BIG-IP DDHD - addressed in versions 13.1.4.1, 14.1.4.3, 15.1.3.1, 16.0.1.2, 16.1.0
BIG-IP Link Controller - addressed in versions 13.1.4.1, 14.1.4.3, 15.1.3.1, 16.0.1.2, 16.1.0
BIG-IP AFM - addressed in versions 13.1.4.1, 14.1.4.3, 15.1.3.1, 16.0.1.2, 16.1.0
BIG-IP Advanced WAF - addressed in versions 13.1.4.1, 14.1.4.3, 15.1.3.1, 16.0.1.2, 16.1.0
BIG-IP PEM - addressed in versions 13.1.4.1, 14.1.4.3, 15.1.3.1, 16.0.1.2, 16.1.0
BIG-IP SSLO - addressed in versions 13.1.4.1, 14.1.4.3, 15.1.3.1, 16.0.1.2, 16.1.0
BIG-IP AAM - addressed in versions 13.1.4.1, 14.1.4.3, 15.1.3.1, 16.0.1.2, 16.1.0
BIG-IP DNS - addressed in versions 13.1.4.1, 14.1.4.3, 15.1.3.1, 16.0.1.2, 16.1.0
BIG-IP ASM - addressed in versions 13.1.4.1, 14.1.4.3, 15.1.3.1, 16.0.1.2, 16.1.0
BIG-IP LTM - addressed in versions 13.1.4.1, 14.1.4.3, 15.1.3.1, 16.0.1.2, 16.1.0
BIG-IP Analytics - addressed in versions 13.1.4.1, 14.1.4.3, 15.1.3.1, 16.0.1.2, 16.1.0
BIG-IP GTM - addressed in versions 13.1.4.1, 14.1.4.3, 15.1.3.1, 16.0.1.2, 16.1.0
BIG-IP APM - addressed in versions 13.1.4.1, 14.1.4.3, 15.1.3.1, 16.0.1.2, 16.1.0