F5 BIG-IP up to 12.1.4.1/13.1.3.1/14.0.1/14.1.2.3 Traffic Management Microkernel denial of service

Summaryinfo

A vulnerability categorized as problematic has been discovered in F5 BIG-IP up to 12.1.4.1/13.1.3.1/14.0.1/14.1.2.3. This vulnerability affects unknown code of the component Traffic Management Microkernel. Such manipulation leads to denial of service. This vulnerability is uniquely identified as CVE-2020-5872. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability was found in F5 BIG-IP up to 12.1.4.1/13.1.3.1/14.0.1/14.1.2.3 (Firewall Software) and classified as problematic. Affected by this issue is an unknown functionality of the component Traffic Management Microkernel. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability. CVE summarizes:

On BIG-IP 14.1.0-14.1.2.3, 14.0.0-14.0.1, 13.1.0-13.1.3.1, and 12.1.0-12.1.4.1, when processing TLS traffic with hardware cryptographic acceleration enabled on platforms with Intel QAT hardware, the Traffic Management Microkernel (TMM) may stop responding and cause a failover event.

The weakness was disclosed 04/30/2020 (Website). The advisory is shared for download at support.f5.com. This vulnerability is handled as CVE-2020-5872 since 01/06/2020. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 05/01/2020). The MITRE ATT&CK project declares the attack technique as T1499.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The entries VDB-154656, VDB-154655 and VDB-154651 are pretty similar. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• Firewall Software

Vendor

• F5

Name

• BIG-IP

Version

• 12.1.4.0
• 12.1.4.1
• 13.1.3.0
• 13.1.3.1
• 14.0.0
• 14.0.1
• 14.1.2.0
• 14.1.2.1
• 14.1.2.2
• 14.1.2.3

License

• commercial

Website

• Vendor: https://f5.com/

CPE 2.3info

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CPE 2.2info

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Entryinfo

Once again VulDB remains the best source for vulnerability data.

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