CVE-2023-32681

{"id": "CVE-2023-32681", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 6.1, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "REQUIRED", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 4.0, "exploitabilityScore": 1.6}, {"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 6.1, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "REQUIRED", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 4.0, "exploitabilityScore": 1.6}]}, "published": "2023-05-26T18:15:14.147", "references": [{"url": "https://github.com/psf/requests/commit/74ea7cf7a6a27a4eeb2ae24e162bcc942a6706d5", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/psf/requests/releases/tag/v2.31.0", "tags": ["Release Notes"], "source": "security-advisories@github.com"}, {"url": "https://github.com/psf/requests/security/advisories/GHSA-j8r2-6x86-q33q", "tags": ["Vendor Advisory"], "source": "security-advisories@github.com"}, {"url": "https://lists.debian.org/debian-lts-announce/2023/06/msg00018.html", "source": "security-advisories@github.com"}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AW7HNFGYP44RT3DUDQXG2QT3OEV2PJ7Y/", "tags": ["Mailing List", "Third Party Advisory"], "source": "security-advisories@github.com"}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KOYASTZDGQG2BWLSNBPL3TQRL2G7QYNZ/", "source": "security-advisories@github.com"}, {"url": "https://security.gentoo.org/glsa/202309-08", "source": "security-advisories@github.com"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-200"}]}, {"type": "Secondary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}], "descriptions": [{"lang": "en", "value": "Requests is a HTTP library. Since Requests 2.3.0, Requests has been leaking Proxy-Authorization headers to destination servers when redirected to an HTTPS endpoint. This is a product of how we use `rebuild_proxies` to reattach the `Proxy-Authorization` header to requests. For HTTP connections sent through the tunnel, the proxy will identify the header in the request itself and remove it prior to forwarding to the destination server. However when sent over HTTPS, the `Proxy-Authorization` header must be sent in the CONNECT request as the proxy has no visibility into the tunneled request. This results in Requests forwarding proxy credentials to the destination server unintentionally, allowing a malicious actor to potentially exfiltrate sensitive information. This issue has been patched in version 2.31.0.\n\n"}, {"lang": "es", "value": "Requests es una librer\u00eda HTTP. Desde Requests 2.3.0, Requests ha estado filtrando cabeceras Proxy-Authorization a los servidores de destino cuando se redirige a un endpoint HTTPS. Esto es producto de c\u00f3mo usamos `rebuild_proxies` para volver a adjuntar la cabecera `Proxy-Authorization` a las peticiones. Para conexiones HTTP enviadas a trav\u00e9s del t\u00fanel, el proxy identificar\u00e1 la cabecera en la propia petici\u00f3n y la eliminar\u00e1 antes de reenviarla al servidor de destino. Sin embargo, cuando se env\u00eda a trav\u00e9s de HTTPS, la cabecera `Proxy-Authorization` debe enviarse en la solicitud CONNECT, ya que el proxy no tiene visibilidad sobre la solicitud en t\u00fanel. Esto provoca que las solicitudes reenv\u00eden las credenciales del proxy al servidor de destino de forma no intencionada, lo que permite a un actor malicioso filtrar informaci\u00f3n confidencial. Este problema se ha corregido en la versi\u00f3n 2.31.0."}], "lastModified": "2023-09-17T09:15:12.327", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:python:requests:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "15530292-B507-496D-B36E-0CA89A7037C6", "versionEndExcluding": "2.31.0", "versionStartIncluding": "2.3.0"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E30D0E6F-4AE8-4284-8716-991DFA48CC5D"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}