Denial of service in BIG-IP MPTCP



Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2021-23004
CWE-ID 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 one medium risk vulnerability.

1) Resource exhaustion

EUVDB-ID: #VU51418

Risk: Medium

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

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 HF1 - 16.0.1

BIG-IP LTM: 11.6.1 HF1 - 16.0.1

BIG-IP AAM: 11.6.1 HF1 - 16.0.1

BIG-IP Advanced WAF: 11.6.1 - 16.0.1

BIG-IP AFM: 11.6.1 HF1 - 16.0.1

BIG-IP Analytics: 11.6.1 HF1 - 16.0.1

BIG-IP APM: 11.6.1 HF1 - 16.0.1

BIG-IP ASM: 11.6.1 HF1 - 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 HF1 - 16.0.1

BIG-IP Link Controller: 11.6.1 HF1 - 16.0.1

BIG-IP PEM: 11.6.1 HF1 - 16.0.1

BIG-IP SSLO: 11.6.1 - 16.0.1

CPE2.3 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.



###SIDEBAR###