Denial of service in BIG-IP TMM



Published: 2021-03-16

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Resource management error

EUVDB-ID: #VU51490

Risk: Medium

CVSSv3.1:

CVE-ID: CVE-2021-23000

CWE-ID: CWE-399 - Resource Management Errors

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper management of internal resources within the application, if the tmm.http.rfc.enforcement with invalid host detection is enabled. A remote attacker can send a specific sequence of malicious requests and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

BIG-IP: 12.1.5.2 - 13.1.3.6

BIG-IP LTM: 12.1.5.2 - 13.1.3.6

BIG-IP AAM: 12.1.5.2 - 13.1.3.6

BIG-IP Advanced WAF: 12.1.5.2 - 13.1.3.6

BIG-IP AFM: 12.1.5.2 - 13.1.3.6

BIG-IP Analytics: 12.1.5.2 - 13.1.3.6

BIG-IP APM: 12.1.5.2 - 13.1.3.6

BIG-IP ASM: 12.1.5.2 - 13.1.3.6

BIG-IP DDHD: 12.1.5.2 - 13.1.3.6

BIG-IP DNS: 12.1.5.2 - 13.1.3.6

BIG-IP FPS: 12.1.5.2 - 13.1.3.6

BIG-IP GTM: 12.1.5.2 - 13.1.3.6

BIG-IP Link Controller: 12.1.5.2 - 13.1.3.6

BIG-IP PEM: 12.1.5.2 - 13.1.3.6

BIG-IP SSLO: 12.1.5.2 - 13.1.3.6


CPE2.3 External links

http://support.f5.com/csp/article/K34441555

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?



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