CVE-2022-24766 – mitmproxy

Package

Manager: pip
Name: mitmproxy
Vulnerable Version: >=0 <8.0.0

Severity

Level: Critical

CVSS v3.1: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

EPSS: 0.00667 pctl0.70384

Details

Insufficient Protection against HTTP Request Smuggling in mitmproxy ### Impact In mitmproxy 7.0.4 and below, a malicious client or server is able to perform [HTTP request smuggling](https://en.wikipedia.org/wiki/HTTP_request_smuggling) attacks through mitmproxy. This means that a malicious client/server could smuggle a request/response through mitmproxy as part of another request/response's HTTP message body. While mitmproxy would only see one request, the target server would see multiple requests. A smuggled request is still captured as part of another request's body, but it does not appear in the request list and does not go through the usual mitmproxy event hooks, where users may have implemented custom access control checks or input sanitization. Unless you use mitmproxy to protect an HTTP/1 service, no action is required. ### Patches The vulnerability has been fixed in mitmproxy 8.0.0 and above. ### Acknowledgements We thank Zeyu Zhang (@zeyu2001) for responsibly disclosing this vulnerability to the mitmproxy team. ### Timeline - **2022-03-15**: Received initial report. - **2022-03-15**: Verified report and confirmed receipt. - **2022-03-16**: Shared patch with researcher. - **2022-03-16**: Received confirmation that patch is working. - **2022-03-19**: Published patched release and advisory.

Metadata

Created: 2022-03-22T19:22:59Z
Modified: 2024-10-01T19:30:26Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/03/GHSA-gcx2-gvj7-pxv3/GHSA-gcx2-gvj7-pxv3.json
CWE IDs: ["CWE-444"]
Alternative ID: GHSA-gcx2-gvj7-pxv3
Finding: F110
Auto approve: 1