CVE-2021-3116

{"containers": {"cna": {"affected": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "descriptions": [{"lang": "en", "value": "before_upstream_connection in AuthPlugin in http/proxy/auth.py in proxy.py before 2.3.1 accepts incorrect Proxy-Authorization header data because of a boolean confusion (and versus or)."}], "problemTypes": [{"descriptions": [{"description": "n/a", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2021-01-11T05:00:49.000Z", "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://cardaci.xyz/advisories/2021/01/10/proxy.py-2.3.0-broken-basic-authentication/"}, {"tags": ["x_refsource_MISC"], "url": "https://github.com/abhinavsingh/proxy.py/pull/482/commits/9b00093288237f5073c403f2c4f62acfdfa8ed46"}, {"tags": ["x_refsource_MISC"], "url": "https://pypi.org/project/proxy.py/2.3.1/#history"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "cve@mitre.org", "ID": "CVE-2021-3116", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "n/a", "version": {"version_data": [{"version_value": "n/a"}]}}]}, "vendor_name": "n/a"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "before_upstream_connection in AuthPlugin in http/proxy/auth.py in proxy.py before 2.3.1 accepts incorrect Proxy-Authorization header data because of a boolean confusion (and versus or)."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "n/a"}]}]}, "references": {"reference_data": [{"name": "https://cardaci.xyz/advisories/2021/01/10/proxy.py-2.3.0-broken-basic-authentication/", "refsource": "MISC", "url": "https://cardaci.xyz/advisories/2021/01/10/proxy.py-2.3.0-broken-basic-authentication/"}, {"name": "https://github.com/abhinavsingh/proxy.py/pull/482/commits/9b00093288237f5073c403f2c4f62acfdfa8ed46", "refsource": "MISC", "url": "https://github.com/abhinavsingh/proxy.py/pull/482/commits/9b00093288237f5073c403f2c4f62acfdfa8ed46"}, {"name": "https://pypi.org/project/proxy.py/2.3.1/#history", "refsource": "MISC", "url": "https://pypi.org/project/proxy.py/2.3.1/#history"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T16:45:51.254Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://cardaci.xyz/advisories/2021/01/10/proxy.py-2.3.0-broken-basic-authentication/"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/abhinavsingh/proxy.py/pull/482/commits/9b00093288237f5073c403f2c4f62acfdfa8ed46"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://pypi.org/project/proxy.py/2.3.1/#history"}]}]}, "cveMetadata": {"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "cveId": "CVE-2021-3116", "datePublished": "2021-01-11T05:00:49.000Z", "dateReserved": "2021-01-11T00:00:00.000Z", "dateUpdated": "2024-08-03T16:45:51.254Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:proxy.py_project:proxy.py:*:*:*:*:*:*:*:*", "matchCriteriaId": "8B9F903B-99CF-482B-A91A-9117B1A7E890", "versionEndExcluding": "2.3.1", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "before_upstream_connection in AuthPlugin in http/proxy/auth.py in proxy.py before 2.3.1 accepts incorrect Proxy-Authorization header data because of a boolean confusion (and versus or)."}, {"lang": "es", "value": "La funci\u00f3n before_upstream_connection en AuthPlugin en el archivo http/proxy/auth.py en proxy.py versiones anteriores a 2.3.1, acepta datos de encabezado Proxy-Authorization incorrectos debido a una confusi\u00f3n booleana (y versus o)"}], "id": "CVE-2021-3116", "lastModified": "2026-06-17T04:04:41.733", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 5.0, "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-01-11T05:15:10.987", "references": [{"source": "cve@mitre.org", "tags": ["Exploit", "Third Party Advisory"], "url": "https://cardaci.xyz/advisories/2021/01/10/proxy.py-2.3.0-broken-basic-authentication/"}, {"source": "cve@mitre.org", "tags": ["Patch"], "url": "https://github.com/abhinavsingh/proxy.py/pull/482/commits/9b00093288237f5073c403f2c4f62acfdfa8ed46"}, {"source": "cve@mitre.org", "tags": ["Product"], "url": "https://pypi.org/project/proxy.py/2.3.1/#history"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory"], "url": "https://cardaci.xyz/advisories/2021/01/10/proxy.py-2.3.0-broken-basic-authentication/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://github.com/abhinavsingh/proxy.py/pull/482/commits/9b00093288237f5073c403f2c4f62acfdfa8ed46"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Product"], "url": "https://pypi.org/project/proxy.py/2.3.1/#history"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-697"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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