#VU59889 Time-of-check Time-of-use (TOCTOU) Race Condition in BIG-IP - CVE-2022-23029

Vulnerability identifier: #VU59889

Vulnerability risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-23029

CWE-ID: CWE-367

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
BIG-IP
Hardware solutions / Firmware

Vendor: F5 Networks

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a race condition in Virtual server with FastL4 profile. A remote attacker can cause a degradation of service and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

BIG-IP: 11.6.1 - 11.6.5, 12.1.0 - 12.1.6, 13.1.0 - 13.1.4, 14.1.0 - 14.1.4, 15.1.0 - 15.1.4

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External links
https://support.f5.com/csp/article/K50343028

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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.