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"value": "A user can tell curl >= 7.20.0 and <= 7.78.0 to require a successful upgrade to TLS when speaking to an IMAP, POP3 or FTP server (`--ssl-reqd` on the command line or`CURLOPT_USE_SSL` set to `CURLUSESSL_CONTROL` or `CURLUSESSL_ALL` withlibcurl). This requirement could be bypassed if the server would return a properly crafted but perfectly legitimate response.This flaw would then make curl silently continue its operations **withoutTLS** contrary to the instructions and expectations, exposing possibly sensitive data in clear text over the network."}, {"lang": "es", "value": "Un usuario puede decirle a curl versiones posteriores a 7.20.0 incluy\u00e9ndola , y versiones anteriores a 7.78.0 incluy\u00e9ndola, que requiera una actualizaci\u00f3n con \u00e9xito a TLS cuando hable con un servidor IMAP, POP3 o FTP (\"--ssl-reqd\" en la l\u00ednea de comandos o \"CURLOPT_USE_SSL\" configurado como \"CURLUSESSL_CONTROL\" o \"CURLUSESSL_ALL\" conlibcurl). Este requisito podr\u00eda ser omitido si el servidor devolviera una respuesta correctamente dise\u00f1ada pero perfectamente leg\u00edtima. Este fallo har\u00eda que curl continuara silenciosamente sus operaciones **withoutTLS** en contra de las instrucciones y expectativas, exponiendo posiblemente datos confidenciales en texto sin cifrar a trav\u00e9s de la red"}], "id": "CVE-2021-22946", "lastModified": "2024-11-21T05:50:59.587", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 5.0, "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/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": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-09-29T20:15:08.187", "references": [{"source": "support@hackerone.com", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://seclists.org/fulldisclosure/2022/Mar/29"}, {"source": "support@hackerone.com", "tags": ["Patch", "Third Party Advisory"], "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf"}, {"source": "support@hackerone.com", "tags": ["Exploit", "Issue Tracking", "Patch", "Third Party Advisory"], "url": "https://hackerone.com/reports/1334111"}, {"source": "support@hackerone.com", "tags": ["Mailing List", "Third Party Advisory"], "url": 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{"affected_release": [{"advisory": "RHSA-2022:1354", "cpe": "cpe:/a:redhat:rhel_dotnet:3.1::el7", "package": "rh-dotnet31-curl-0:7.61.1-22.el7_9", "product_name": ".NET Core on Red Hat Enterprise Linux", "release_date": "2022-04-13T00:00:00Z"}, {"advisory": "RHSA-2021:4059", "cpe": "cpe:/o:redhat:enterprise_linux:8", "package": "curl-0:7.61.1-18.el8_4.2", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2021-11-02T00:00:00Z"}, {"advisory": "RHSA-2022:0635", "cpe": "cpe:/o:redhat:rhel_eus:8.2", "package": "curl-0:7.61.1-12.el8_2.4", "product_name": "Red Hat Enterprise Linux 8.2 Extended Update Support", "release_date": "2022-02-22T00:00:00Z"}], "bugzilla": {"description": "curl: Requirement to use TLS not properly enforced for IMAP, POP3, and FTP protocols", "id": "2003175", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2003175"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "status": "verified"}, "cwe": "CWE-319", "details": ["A user can tell curl >= 7.20.0 and <= 7.78.0 to require a successful upgrade to TLS when speaking to an IMAP, POP3 or FTP server (`--ssl-reqd` on the command line or`CURLOPT_USE_SSL` set to `CURLUSESSL_CONTROL` or `CURLUSESSL_ALL` withlibcurl). This requirement could be bypassed if the server would return a properly crafted but perfectly legitimate response.This flaw would then make curl silently continue its operations **withoutTLS** contrary to the instructions and expectations, exposing possibly sensitive data in clear text over the network.", "A flaw was found in curl. This flaw lies in the --ssl-reqd option or related settings in libcurl. Users specify this flag to upgrade to TLS when communicating with either IMAP, POP3 or a FTP server. An attacker controlling such servers could return a crafted response which could lead to curl client continue its operation without TLS encryption leading to data being transmitted in clear text over the network. The highest threat from this vulnerability is to data confidentiality."], "name": "CVE-2021-22946", "package_state": [{"cpe": "cpe:/a:redhat:rhel_dotnet:2.1", "fix_state": "Out of support scope", "package_name": "rh-dotnet21-curl", "product_name": ".NET Core 2.1 on Red Hat Enterprise Linux"}, {"cpe": "cpe:/a:redhat:ceph_storage:2", "fix_state": "Out of support scope", "package_name": "curl", "product_name": "Red Hat Ceph Storage 2"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "curl", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Affected", "package_name": "curl", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "curl", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:jboss_core_services:1", "fix_state": "Not affected", "package_name": "curl", "product_name": "Red Hat JBoss Core Services"}, {"cpe": "cpe:/a:redhat:rhel_software_collections:3", "fix_state": "Affected", "package_name": "httpd24-curl", "product_name": "Red Hat Software Collections"}], "public_date": "2021-09-15T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2021-22946\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-22946\nhttps://curl.se/docs/CVE-2021-22946.html"], "threat_severity": "Moderate"}

{}