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 Subscribe |
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
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2023-22281
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe 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.
MitigationInstall updates from vendor's website.
Vulnerable software versionsBIG-IP AFM: 13.1.0 - 17.0.0.1
External linkshttp://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.
