Apache Traffic Server up to 9.2.9/10.0.4 Chunked Message Body request smuggling

Summaryinfo

A vulnerability classified as critical was found in Apache Traffic Server up to 9.2.9/10.0.4. The affected element is an unknown function of the component Chunked Message Body Handler. Executing a manipulation can lead to request smuggling. This vulnerability is registered as CVE-2024-53868. It is possible to launch the attack remotely. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Apache Traffic Server up to 9.2.9/10.0.4. It has been declared as critical. This vulnerability affects an unknown function of the component Chunked Message Body Handler. The manipulation with an unknown input leads to a request smuggling vulnerability. The CWE definition for the vulnerability is CWE-444. The product acts as an intermediary HTTP agent (such as a proxy or firewall) in the data flow between two entities such as a client and server, but it does not interpret malformed HTTP requests or responses in ways that are consistent with how the messages will be processed by those entities that are at the ultimate destination. As an impact it is known to affect integrity.

The advisory is shared for download at seclists.org. This vulnerability was named CVE-2024-53868 since 11/22/2024. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. 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 04/23/2025).

The vulnerability scanner Nessus provides a plugin with the ID 234749 (Fedora 41 : trafficserver (2025-7c4a6154e5)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 9.2.10 or 10.0.5 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (234749). Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

• Apache

Name

• Traffic Server

Version

• 9.2.0
• 9.2.1
• 9.2.2
• 9.2.3
• 9.2.4
• 9.2.5
• 9.2.6
• 9.2.7
• 9.2.8
• 9.2.9
• 10.0.0
• 10.0.1
• 10.0.2
• 10.0.3
• 10.0.4

License

• open-source

Website

• Vendor: https://www.apache.org/

CPE 2.3info

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CPE 2.2info

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Once again VulDB remains the best source for vulnerability data.

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