F5 BIG-IP up to 14.1.0.5 Virtual Server DHCPv6 Request input validation

Summaryinfo

A vulnerability, which was classified as problematic, was found in F5 BIG-IP up to 11.6.4/12.1.4.1/13.1.2/14.0.0.4/14.1.0.5. Affected by this vulnerability is an unknown functionality of the component Virtual Server. Executing a manipulation as part of DHCPv6 Request can lead to input validation. This vulnerability is tracked as CVE-2019-6643. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability was found in F5 BIG-IP up to 11.6.4/12.1.4.1/13.1.2/14.0.0.4/14.1.0.5 (Firewall Software). It has been declared as problematic. This vulnerability affects some unknown functionality of the component Virtual Server. The manipulation as part of a DHCPv6 Request leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect availability. CVE summarizes:

On versions 14.1.0-14.1.0.5, 14.0.0-14.0.0.4, 13.0.0-13.1.2, 12.1.0-12.1.4.1, and 11.5.2-11.6.4, an attacker sending specifically crafted DHCPv6 requests through a BIG-IP virtual server configured with a DHCPv6 profile may be able to cause the TMM process to produce a core file.

The weakness was disclosed 09/04/2019. This vulnerability was named CVE-2019-6643 since 01/22/2019. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 12/13/2023).

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

Version

• 11.6.0
• 11.6.1
• 11.6.2
• 11.6.3
• 11.6.4
• 12.1.4.0
• 12.1.4.1
• 13.1.0
• 13.1.1
• 13.1.2
• 14.0.0.0
• 14.0.0.1
• 14.0.0.2
• 14.0.0.3
• 14.0.0.4
• 14.1.0.0
• 14.1.0.1
• 14.1.0.2
• 14.1.0.3
• 14.1.0.4
• 14.1.0.5

License

• commercial

Website

• Vendor: https://f5.com/

CPE 2.3info

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CPE 2.2info

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