Denial of service in BIG-IP Client SSL profile

1) Resource exhaustion

EUVDB-ID: #VU59847

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-2022-23015

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 TLS traffic. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.

Successful exploitation of the vulnerability requires that a Client SSL profile is configured on a virtual server with Client Certificate Authentication set to request/require and Session Ticket enabled and configured.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

BIG-IP: 14.1.2.6 - 16.0.1.2

CPE2.3

• cpe:2.3:h:f5_networks:big-ip:14.1.2.6:*:*:*:*:*:*:*
• cpe:2.3:h:f5_networks:big-ip:14.1.2.7:*:*:*:*:*:*:*
• cpe:2.3:h:f5_networks:big-ip:14.1.2.8:*:*:*:*:*:*:*
• cpe:2.3:h:f5_networks:big-ip:14.1.3:*:*:*:*:*:*:*
• cpe:2.3:h:f5_networks:big-ip:14.1.3.1:*:*:*:*:*:*:*
• cpe:2.3:h:f5_networks:big-ip:14.1.4:*:*:*:*:*:*:*
• cpe:2.3:h:f5_networks:big-ip:14.1.4.0.120.11:*:*:*:*:*:*:*
• cpe:2.3:h:f5_networks:big-ip:14.1.4.2:*:*:*:*:*:*:*
• cpe:2.3:h:f5_networks:big-ip:14.1.4.3:*:*:*:*:*:*:*
• cpe:2.3:h:f5_networks:big-ip:14.1.4.4:*:*:*:*:*:*:*

External links

https://support.f5.com/csp/article/K08476614

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.