#VU50615 Race condition in F5 Networks products - CVE-2021-22974

Vulnerability identifier: #VU50615

Vulnerability risk: Medium

CVSSv4.0: 5.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-22974

CWE-ID: CWE-362

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
BIG-IP
Hardware solutions / Firmware
BIG-IP DDHD
Hardware solutions / Firmware
BIG-IP SSLO
Hardware solutions / Firmware
BIG-IP LTM
Hardware solutions / Security hardware applicances
BIG-IP AFM
Hardware solutions / Security hardware applicances
BIG-IP Analytics
Hardware solutions / Security hardware applicances
BIG-IP APM
Hardware solutions / Security hardware applicances
BIG-IP ASM
Hardware solutions / Security hardware applicances
BIG-IP FPS
Hardware solutions / Security hardware applicances
BIG-IP GTM
Hardware solutions / Security hardware applicances
BIG-IP PEM
Hardware solutions / Security hardware applicances
BIG-IP AAM
Hardware solutions / Routers & switches, VoIP, GSM, etc
BIG-IP DNS
Hardware solutions / Routers & switches, VoIP, GSM, etc
BIG-IP Link Controller
Hardware solutions / Routers & switches, VoIP, GSM, etc
BIG-IP Advanced WAF
Client/Desktop applications / Antivirus software/Personal firewalls

Vendor: F5 Networks

Description

The vulnerability allows a remote user to escalate privileges on the system.

The vulnerability exists due to incomplete fix for a race condition vulnerability in iControl REST API #VU9746. A  remote user can exploit the race and gain unauthorized access to sensitive information and escalate privileges on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

BIG-IP: 13.1.0 - 13.1.3.5, 14.1.0 - 14.1.3, 15.1.0 - 15.1.1, 16.0.0 - 16.0.1

BIG-IP LTM: 13.1.0 - 16.0.1

BIG-IP AAM: 13.1.0 - 16.0.1

BIG-IP Advanced WAF: 13.1.0 - 16.0.1

BIG-IP AFM: 13.1.0 - 16.0.1

BIG-IP Analytics: 13.1.0 - 16.0.1

BIG-IP APM: 13.1.0 - 16.0.1

BIG-IP ASM: 13.1.0 - 16.0.1

BIG-IP DDHD: 13.1.0 - 16.0.1

BIG-IP DNS: 13.1.0 - 16.0.1

BIG-IP FPS: 13.1.0 - 16.0.1

BIG-IP GTM: 13.1.0 - 16.0.1

BIG-IP Link Controller: 13.1.0 - 16.0.1

BIG-IP PEM: 13.1.0 - 16.0.1

BIG-IP SSLO: 13.1.0 - 16.0.1

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External links
https://support.f5.com/csp/article/K68652018

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.