Envoy up to 1.27.5/1.30.1/1.28.3/1.29.4 error condition

Summaryinfo

A vulnerability was found in Envoy up to 1.27.5/1.30.1/1.28.3/1.29.4. It has been declared as problematic. Affected is an unknown function. Executing a manipulation can lead to error condition. This vulnerability is tracked as CVE-2024-23326. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability classified as problematic was found in Envoy up to 1.27.5/1.30.1/1.28.3/1.29.4. This vulnerability affects some unknown processing. The manipulation with an unknown input leads to a error condition vulnerability. The CWE definition for the vulnerability is CWE-391. [PLANNED FOR DEPRECATION. SEE MAINTENANCE NOTES AND CONSIDER CWE-252, CWE-248, OR CWE-1069.] Ignoring exceptions and other error conditions may allow an attacker to induce unexpected behavior unnoticed. As an impact it is known to affect confidentiality. CVE summarizes:

Envoy is a cloud-native, open source edge and service proxy. A theoretical request smuggling vulnerability exists through Envoy if a server can be tricked into adding an upgrade header into a response. Per RFC https://www.rfc-editor.org/rfc/rfc7230#section-6.7 a server sends 101 when switching protocols. Envoy incorrectly accepts a 200 response from a server when requesting a protocol upgrade, but 200 does not indicate protocol switch. This opens up the possibility of request smuggling through Envoy if the server can be tricked into adding the upgrade header to the response.

The advisory is shared for download at github.com. This vulnerability was named CVE-2024-23326 since 01/15/2024. The exploitation appears to be difficult. 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.

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

Name

• Envoy

Version

• 1.27.0
• 1.27.1
• 1.27.2
• 1.27.3
• 1.27.4
• 1.27.5
• 1.28.0
• 1.28.1
• 1.28.2
• 1.28.3
• 1.29.0
• 1.29.1
• 1.29.2
• 1.29.3
• 1.29.4
• 1.30.0
• 1.30.1

License

• free

CPE 2.3info

• 🔍
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CPE 2.2info

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