Denial of service in BIG-IP AFM FastL4 virtual server with NAT



Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2023-22281
CWE-ID CWE-20
Exploitation vector Network
Public exploit N/A
Vulnerable software
 BIG-IP AFM
Hardware solutions / Security hardware applicances

Vendor F5 Networks

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Input validation error

EUVDB-ID: #VU71784

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-2023-22281

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 a BIG-IP AFM NAT policy with a destination NAT rule is configured on a FastL4 virtual server. A remote attacker can send specially crafted traffic to the system and cause the Traffic Management Microkernel (TMM) to terminate.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

BIG-IP AFM: 13.1.0 - 17.0.0.1

CPE2.3 External links

https://my.f5.com/manage/s/article/K46048342


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.



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