Apache Traffic Server up to 8.1.10/9.2.4 Field Name request smuggling

Summaryinfo

A vulnerability, which was classified as critical, was found in Apache Traffic Server up to 8.1.10/9.2.4. Impacted is an unknown function of the component Field Name Handler. The manipulation results in request smuggling. This vulnerability is reported as CVE-2023-38522. The attack can be launched remotely. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in Apache Traffic Server up to 8.1.10/9.2.4. Affected is some unknown functionality of the component Field Name Handler. The manipulation with an unknown input leads to a request smuggling vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Apache Traffic Server accepts characters that are not allowed for HTTP field names and forwards malformed requests to origin servers. This can be utilized for request smuggling and may also lead cache poisoning if the origin servers are vulnerable. This issue affects Apache Traffic Server: from 8.0.0 through 8.1.10, from 9.0.0 through 9.2.4. Users are recommended to upgrade to version 8.1.11 or 9.2.5, which fixes the issue.

The advisory is available at seclists.org. This vulnerability is traded as CVE-2023-38522. The exploitability is told to be easy. It is possible to launch the attack remotely. 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 09/28/2024).

The vulnerability scanner Nessus provides a plugin with the ID 207853 (Debian dla-3897 : trafficserver - security update), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 8.1.11 or 9.2.5 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (207853). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

• Apache

Name

• Traffic Server

Version

• 8.1.0
• 8.1.1
• 8.1.2
• 8.1.3
• 8.1.4
• 8.1.5
• 8.1.6
• 8.1.7
• 8.1.8
• 8.1.9
• 8.1.10
• 9.2.0
• 9.2.1
• 9.2.2
• 9.2.3
• 9.2.4

License

• open-source

Website

• Vendor: https://www.apache.org/

CPE 2.3info

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If you want to get best quality of vulnerability data, you may have to visit VulDB.

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