CVE-2023-38697

CVSS 3.1 Score 5.3 of 10 (medium)

Details

Published Aug 4, 2023
Updated: Aug 10, 2023
CWE ID 444

Summary

CVE-2023-38697, also known as Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling'), is a vulnerability that affects the protocol-http1 implementation of the HTTP/1 protocol. The vulnerability occurs in Falcon, which accepts Content-Length header values with a `+` prefix, hexadecimal values with a `0x` prefix, and LF in chunk extension. This behavior can lead to desync when forwarding through multiple HTTP parsers, potentially resulting in HTTP request smuggling and firewall bypassing. The issue has been fixed in protocol-http1 v0.15.1, and there are no known workarounds. This vulnerability has a base severity of MEDIUM and a base score of 5.3 according to [email protected], with low integrity impact and no confidentiality impact.

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