Denial of service in F5 BIG-IP TMM

1) Input validation error

EUVDB-ID: #VU56156

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-23039

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

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 can pass specially crafted input to the application and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

BIG-IP: 12.1.0 - 16.0.1

CPE2.3

• cpe:2.3:h:f5_networks:big-ip:12.1.6:*:*:*:*:*:*:*
• cpe:2.3:h:f5_networks:big-ip:13.1.4:*:*:*:*:*:*:*
• cpe:2.3:h:f5_networks:big-ip:14.1.2:*:*:*:*:*:*:*
• cpe:2.3:h:f5_networks:big-ip:15.1.2:*:*:*:*:*:*:*
• cpe:2.3:h:f5_networks:big-ip:15.0.1:*:*:*:*:*:*:*
• cpe:2.3:h:f5_networks:big-ip:16.0.1:*:*:*:*:*:*:*

External links

http://support.f5.com/csp/article/K66782293

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.