Denial of service in F5 BIG-IP Traffic Management Microkernel (TMM)

1) Input validation error

EUVDB-ID: #VU25007

Risk: Medium

CVSSv3.1: 5.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-5854

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 the Traffic Management Microkernel (TMM) process may produce a core file when using the connector profile and a specific sequence of connections are received. A remote attacker can cause a denial of service condition on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

BIG-IP: 11.5.2 - 15.0.1

BIG-IP LTM: 11.5.2 - 15.0.1

BIG-IP AAM: 11.5.2 - 15.0.1

BIG-IP AFM: 11.5.2 - 15.0.1

BIG-IP Analytics: 11.5.2 - 15.0.1

BIG-IP APM: 11.5.2 - 15.0.1

BIG-IP ASM: 11.5.2 - 15.0.1

BIG-IP DNS: 11.5.2 - 15.0.1

BIG-IP Edge Gateway: 11.5.2 - 15.0.1

BIG-IP FPS: 11.5.2 - 15.0.1

BIG-IP GTM: 11.5.2 - 15.0.1

BIG-IP Link Controller: 11.5.2 - 15.0.1

BIG-IP PEM: 11.5.2 - 15.0.1

BIG-IP WebAccelerator: 11.5.2 - 15.0.1

Enterprise Manager: 3.1.1

BIG-IQ Centralized Management: 5.3.0 - 7.0.0

F5 iWorkflow: 2.3.0

Traffix SDC: 5.0.0 - 5.1.0

External links

http://support.f5.com/csp/article/K50046200

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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