F5 BIG-IP up to 13.1.1.1/14.0.0.2 TMM input validation

Summaryinfo

A vulnerability marked as critical has been reported in F5 BIG-IP up to 13.1.1.1/14.0.0.2. This issue affects some unknown processing of the component TMM. This manipulation causes input validation. This vulnerability is handled as CVE-2018-15323. The attack can be initiated remotely. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in F5 BIG-IP up to 13.1.1.1/14.0.0.2 (Firewall Software). Affected by this vulnerability is an unknown code of the component TMM. The manipulation with an unknown input 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 confidentiality, integrity, and availability. The summary by CVE is:

On BIG-IP 14.0.0-14.0.0.2 or 13.0.0-13.1.1.1, in certain circumstances, when processing traffic through a Virtual Server with an associated MQTT profile, the TMM process may produce a core file and take the configured HA action.

The bug was discovered 10/31/2018. The weakness was released 10/30/2018 (Website). The advisory is shared at support.f5.com. This vulnerability is known as CVE-2018-15323 since 08/14/2018. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 118647 (F5 Networks BIG-IP : MQTT vulnerability (K26583415)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family F5 Networks Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 371304 (F5 BIG-IP ASM,LTM,APM MQTT Denial Of Service Vulnerability (K20222812)).

Upgrading eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (118647). Entries connected to this vulnerability are available at VDB-126365, VDB-126363, VDB-126360 and VDB-126359. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

• Firewall Software

Vendor

• F5

Name

• BIG-IP

Version

• 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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Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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