F5 BIG-IP ASM up to 15.0.1.1 Security Policy HTTP Response resource consumption

Summaryinfo

A vulnerability was found in F5 BIG-IP ASM up to 11.6.5.1/12.1.5/13.1.3.1/14.1.2.2/15.0.1.1. It has been declared as problematic. This vulnerability affects unknown code of the component Security Policy. The manipulation as part of HTTP Response results in resource consumption. This vulnerability was named CVE-2019-6682. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability was found in F5 BIG-IP ASM up to 11.6.5.1/12.1.5/13.1.3.1/14.1.2.2/15.0.1.1 (Firewall Software). It has been classified as problematic. Affected is some unknown processing of the component Security Policy. The manipulation as part of a HTTP Response leads to a resource consumption vulnerability. CWE is classifying the issue as CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. This is going to have an impact on availability. CVE summarizes:

On versions 15.0.0-15.0.1.1, 14.0.0-14.1.2.2, 13.1.0-13.1.3.1, 12.1.0-12.1.5, and 11.5.2-11.6.5.1, the BIG-IP ASM system may consume excessive resources when processing certain types of HTTP responses from the origin web server. This vulnerability is only known to affect resource-constrained systems in which the security policy is configured with response-side features, such as Data Guard or response-side learning.

The weakness was presented 12/23/2019 (Website). The advisory is available at support.f5.com. This vulnerability is traded as CVE-2019-6682 since 01/22/2019. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 12/24/2019). This vulnerability is assigned to T1499 by the MITRE ATT&CK project.

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

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Productinfo

Type

• Firewall Software

Vendor

• F5

Name

• BIG-IP ASM

Version

• 11.6.5.0
• 11.6.5.1
• 12.1.0
• 12.1.1
• 12.1.2
• 12.1.3
• 12.1.4
• 12.1.5
• 13.1.3.0
• 13.1.3.1
• 14.1.2.0
• 14.1.2.1
• 14.1.2.2
• 15.0.1.0
• 15.0.1.1

License

• commercial

Website

• Vendor: https://f5.com/

CPE 2.3info

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CPE 2.2info

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