CVE-2021-39214

Summary

CVECVE-2021-39214
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-09-16 15:15:00 UTC
Updated2021-09-28 14:21:00 UTC
Descriptionmitmproxy is an interactive, SSL/TLS-capable intercepting proxy. In mitmproxy 7.0.2 and below, a malicious client or server is able to perform 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 a smuggled request is still captured as part of another request's body, 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 one uses mitmproxy to protect an HTTP/1 service, no action is required. The vulnerability has been fixed in mitmproxy 7.0.3 and above.

Risk And Classification

Problem Types: CWE-444

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Mitmproxy Mitmproxy All All All All

References

ReferenceSourceLinkTags
Lacking Protection against HTTP Request Smuggling in mitmproxy · Advisory · mitmproxy/mitmproxy · GitHub CONFIRM github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 183046 Debian Security Update for mitmproxy (CVE-2021-39214)
  • 980381 Python (pip) Security Update for mitmproxy (GHSA-22gh-3r9q-xf38)
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