Multiple vulnerabilities in BIG-IP TMM

Published: 2021-02-11

Risk	Medium
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2021-22977 CVE-2021-22975
CWE-ID	CWE-20 CWE-400
Exploitation vector	Network
Public exploit	N/A
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

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Input validation error

EUVDB-ID: #VU50611

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-22977

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 when processing communication between malicious HTTP client code and a malicious server. A remote attacker can pass specially crafted input to the application and force the Traffic Management Microkernel (TMM) to restart.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

BIG-IP: 14.1.2 - 16.0.1

BIG-IP LTM: 14.1.2 - 16.0.1

BIG-IP AAM: 14.1.2 - 16.0.1

BIG-IP Advanced WAF: 14.1.2 - 16.0.1

BIG-IP AFM: 14.1.2 - 16.0.1

BIG-IP Analytics: 14.1.2 - 16.0.1

BIG-IP APM: 14.1.2 - 16.0.1

BIG-IP ASM: 14.1.2 - 16.0.1

BIG-IP DDHD: 14.1.2 - 16.0.1

BIG-IP DNS: 14.1.2 - 16.0.1

BIG-IP FPS: 14.1.2 - 16.0.1

BIG-IP GTM: 14.1.2 - 16.0.1

BIG-IP Link Controller: 14.1.2 - 16.0.1

BIG-IP PEM: 14.1.2 - 16.0.1

BIG-IP SSLO: 14.1.2 - 16.0.1

CPE2.3

External links

https://support.f5.com/csp/article/K14693346

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.

2) Resource exhaustion

EUVDB-ID: #VU50612

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-22975

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

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

The vulnerability exists due to application does not properly control consumption of internal resources. A remote attacker can trigger resource exhaustion and force the Traffic Management Microkernel (TMM) module to restart.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

BIG-IP: 14.1.0 - 16.0.1

BIG-IP LTM: 14.1.0 - 16.0.1

BIG-IP AAM: 14.1.0 - 16.0.1

BIG-IP Advanced WAF: 14.1.0 - 16.0.1

BIG-IP AFM: 14.1.0 - 16.0.1

BIG-IP Analytics: 14.1.0 - 16.0.1

BIG-IP APM: 14.1.0 - 16.0.1

BIG-IP ASM: 14.1.0 - 16.0.1

BIG-IP DDHD: 14.1.0 - 16.0.1

BIG-IP DNS: 14.1.0 - 16.0.1

BIG-IP FPS: 14.1.0 - 16.0.1

BIG-IP GTM: 14.1.0 - 16.0.1

BIG-IP Link Controller: 14.1.0 - 16.0.1

BIG-IP PEM: 14.1.0 - 16.0.1

BIG-IP SSLO: 14.1.0 - 16.0.1