cve-2024-37891
Vulnerability from cvelistv5
Published
2024-06-17 19:18
Modified
2024-08-22 18:03
Severity ?
4.4 (Medium) - CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N
Summary
Proxy-Authorization request header isn't stripped during cross-origin redirects in urllib3
References
security-advisories@github.comhttps://github.com/urllib3/urllib3/commit/accff72ecc2f6cf5a76d9570198a93ac7c90270e
security-advisories@github.comhttps://github.com/urllib3/urllib3/security/advisories/GHSA-34jh-p97f-mpxf
Impacted products
urllib3urllib3
Show details on NVD website

To clipboard 

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En esos casos, urllib3 no trata el encabezado HTTP \\\"Proxy-Authorization\\\" como si llevara material de autenticaci\u00f3n y, por lo tanto, no elimina el encabezado en redirecciones de origen cruzado. Dado que se trata de un escenario muy improbable, creemos que la gravedad de esta vulnerabilidad es baja para casi todos los usuarios. Por precauci\u00f3n, urllib3 eliminar\u00e1 autom\u00e1ticamente el encabezado \\\"Proxy-Authorization\\\" durante las redirecciones entre or\u00edgenes para evitar la peque\u00f1a posibilidad de que los usuarios hagan esto por accidente. Los usuarios deben usar el soporte de proxy de urllib3 o desactivar las redirecciones autom\u00e1ticas para lograr un procesamiento seguro del encabezado `Proxy-Authorization`, pero aun as\u00ed decidimos eliminar el encabezado de forma predeterminada para proteger a\u00fan m\u00e1s a los usuarios que no utilizan el enfoque correcto. Creemos que la cantidad de usos afectados por este aviso es baja. 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