Denial of service in BIG-IP MPTCP

1) Resource exhaustion

EUVDB-ID: #VU51418

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-2021-23004

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 when processing multipath TCP (MPTCP) forwarding flows on standard virtual servers without MPTCP enabled in the applied TCP profile. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

BIG-IP: 11.6.1 - 16.0.1

BIG-IP LTM: 11.6.1 - 16.0.1

BIG-IP AAM: 11.6.1 - 16.0.1

BIG-IP Advanced WAF: 11.6.1 - 16.0.1

BIG-IP AFM: 11.6.1 - 16.0.1

BIG-IP Analytics: 11.6.1 - 16.0.1

BIG-IP APM: 11.6.1 - 16.0.1

BIG-IP ASM: 11.6.1 - 16.0.1

BIG-IP DDHD: 11.6.1 - 16.0.1

BIG-IP DNS: 11.6.1 - 16.0.1

BIG-IP FPS: 11.6.1 - 16.0.1

BIG-IP GTM: 11.6.1 - 16.0.1

BIG-IP Link Controller: 11.6.1 - 16.0.1

BIG-IP PEM: 11.6.1 - 16.0.1

BIG-IP SSLO: 11.6.1 - 16.0.1

External links

http://support.f5.com/csp/article/K31025212

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.