F5 BIG-IP up to 14.0.0.2 High-Speed Bridge Lock input validation

Summaryinfo

A vulnerability described as problematic has been identified in F5 BIG-IP up to 11.5.8/11.6.3/12.1.3.6/13.1.1.1/14.0.0.2. This impacts an unknown function of the component High-Speed Bridge. Executing a manipulation can lead to input validation (Lock). This vulnerability is tracked as CVE-2019-6604. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability has been found in F5 BIG-IP up to 11.5.8/11.6.3/12.1.3.6/13.1.1.1/14.0.0.2 (Firewall Software) and classified as problematic. This vulnerability affects an unknown code block of the component High-Speed Bridge. The manipulation with an unknown input leads to a input validation vulnerability (Lock). 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 BIG-IP 11.5.1-11.5.8, 11.6.1-11.6.3, 12.1.0-12.1.3.6, 13.0.0-13.1.1.1, and 14.0.0-14.0.0.2, under certain conditions, hardware systems with a High-Speed Bridge and using non-default Layer 2 forwarding configurations may experience a lockup of the High-Speed Bridge.

The bug was discovered 03/22/2019. The weakness was disclosed 03/28/2019. This vulnerability was named CVE-2019-6604 since 01/22/2019. 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 current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 08/17/2023).

The vulnerability was handled as a non-public zero-day exploit for at least 6 days. During that time the estimated underground price was around $5k-$25k.

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

The entries VDB-132590, VDB-132596, VDB-132594 and VDB-132593 are pretty similar. 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

Version

• 11.5.0
• 11.5.1
• 11.5.2
• 11.5.3
• 11.5.4
• 11.5.5
• 11.5.6
• 11.5.7
• 11.5.8
• 11.6.0
• 11.6.1
• 11.6.2
• 11.6.3
• 12.1.3.0
• 12.1.3.1
• 12.1.3.2
• 12.1.3.3
• 12.1.3.4
• 12.1.3.5
• 12.1.3.6
• 13.1.1.0
• 13.1.1.1
• 14.0.0.0
• 14.0.0.1
• 14.0.0.2

License

• commercial

Website

• Vendor: https://f5.com/

CPE 2.3info

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CPE 2.2info

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