F5 BIG-IP/BIG-IP Next CNF prior 17.1.2 IPS Module allocation of resources

Summaryinfo

A vulnerability was found in F5 BIG-IP and BIG-IP Next CNF and classified as critical. This issue affects some unknown processing of the component IPS Module. Executing a manipulation can lead to allocation of resources. This vulnerability is registered as CVE-2025-24312. It is possible to launch the attack remotely. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in F5 BIG-IP and BIG-IP Next CNF. This vulnerability affects an unknown code of the component IPS Module. The manipulation with an unknown input leads to a allocation of resources vulnerability. The CWE definition for the vulnerability is CWE-770. The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor. As an impact it is known to affect availability. CVE summarizes:

When BIG-IP AFM is provisioned with IPS module enabled and protocol inspection profile is configured on a virtual server or firewall rule or policy, undisclosed traffic can cause an increase in CPU resource utilization.   Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

The advisory is shared for download at my.f5.com. This vulnerability was named CVE-2025-24312 since 01/22/2025. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1499.

The vulnerability scanner Nessus provides a plugin with the ID 215020 (F5 Networks BIG-IP : BIG-IP AFM vulnerability (K000141380)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 17.1.2 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (215020). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

• Firewall Software

Vendor

• F5

Name

• BIG-IP
• BIG-IP Next CNF

License

• commercial

Website

• Vendor: https://f5.com/

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Entryinfo

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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