CVE-2015-3644

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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:stunnel:stunnel:5.00:*:*:*:*:*:*:*", "matchCriteriaId": "86A9A9F5-B193-44DC-88EF-D0409AB2CD42", "vulnerable": true}, {"criteria": "cpe:2.3:a:stunnel:stunnel:5.01:*:*:*:*:*:*:*", "matchCriteriaId": "4AD482D3-F96B-41EB-BEF2-ED59A2B2E77B", "vulnerable": true}, {"criteria": "cpe:2.3:a:stunnel:stunnel:5.02:*:*:*:*:*:*:*", "matchCriteriaId": "79CCAF8F-FAB6-40B5-8752-0E5AA6CDC0CD", "vulnerable": true}, {"criteria": "cpe:2.3:a:stunnel:stunnel:5.03:*:*:*:*:*:*:*", "matchCriteriaId": "59AE589F-7747-4F46-A58F-608AB7110B46", "vulnerable": true}, {"criteria": "cpe:2.3:a:stunnel:stunnel:5.04:*:*:*:*:*:*:*", "matchCriteriaId": "14F8AE5A-BCBB-4F41-862D-D930CAA67B61", "vulnerable": true}, {"criteria": "cpe:2.3:a:stunnel:stunnel:5.05:*:*:*:*:*:*:*", "matchCriteriaId": "E881D0A8-5BA1-41FC-9743-262CAB3BCD08", "vulnerable": true}, {"criteria": "cpe:2.3:a:stunnel:stunnel:5.06:*:*:*:*:*:*:*", "matchCriteriaId": "5636BFAF-4A5C-4002-B6BB-75B6F6BD534D", "vulnerable": true}, {"criteria": "cpe:2.3:a:stunnel:stunnel:5.07:*:*:*:*:*:*:*", "matchCriteriaId": "C9B042A1-00CF-40CD-BAA2-1E2FFBE6FEE6", "vulnerable": true}, {"criteria": "cpe:2.3:a:stunnel:stunnel:5.08:*:*:*:*:*:*:*", "matchCriteriaId": "26F8ECBC-35ED-4736-9EA3-E439747E4249", "vulnerable": true}, {"criteria": "cpe:2.3:a:stunnel:stunnel:5.09:*:*:*:*:*:*:*", "matchCriteriaId": "5A40647D-D3F4-4BB8-9A20-66366E330EF4", "vulnerable": true}, {"criteria": "cpe:2.3:a:stunnel:stunnel:5.10:*:*:*:*:*:*:*", "matchCriteriaId": "D933945A-4FFE-4A90-B5A7-D375E36F5D90", "vulnerable": true}, {"criteria": "cpe:2.3:a:stunnel:stunnel:5.11:*:*:*:*:*:*:*", "matchCriteriaId": "9B9E126F-CC19-4C4D-BB98-D4A21D7B84C0", "vulnerable": true}, {"criteria": "cpe:2.3:a:stunnel:stunnel:5.12:*:*:*:*:*:*:*", "matchCriteriaId": "60862632-E37E-40D4-8153-FE82CFD0E011", "vulnerable": true}, {"criteria": "cpe:2.3:a:stunnel:stunnel:5.13:*:*:*:*:*:*:*", "matchCriteriaId": "D2774924-2867-42CF-AFFB-996809126E31", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Stunnel 5.00 through 5.13, when using the redirect option, does not redirect client connections to the expected server after the initial connection, which allows remote attackers to bypass authentication."}, {"lang": "es", "value": "Stunnel 5.00 hasta 5.13, cuando utiliza la opci\u00f3n de redirecci\u00f3n, no redirige las conexiones de clientes al servidor esperado despu\u00e9s de la conexi\u00f3n inicial, lo que permite a atacantes remotos evadir la autenticaci\u00f3n."}], "id": "CVE-2015-3644", "lastModified": "2026-06-17T00:26:02.117", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 5.8, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 8.6, "impactScore": 4.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}]}, "published": "2015-05-14T00:59:06.147", "references": [{"source": "cve@mitre.org", "url": "http://www.debian.org/security/2015/dsa-3299"}, {"source": "cve@mitre.org", "url": "http://www.securityfocus.com/bid/74659"}, {"source": "cve@mitre.org", "url": "http://www.securitytracker.com/id/1032324"}, {"source": "cve@mitre.org", "tags": ["Patch", "Vendor Advisory"], "url": "https://www.stunnel.org/CVE-2015-3644.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.debian.org/security/2015/dsa-3299"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.securityfocus.com/bid/74659"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.securitytracker.com/id/1032324"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Vendor Advisory"], "url": "https://www.stunnel.org/CVE-2015-3644.html"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-284"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "stunnel: authentication bypass with the \"redirect\" option", "id": "1221673", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1221673"}, "csaw": false, "cvss": {"cvss_base_score": "6.4", "cvss_scoring_vector": "AV:N/AC:L/Au:N/C:P/I:P/A:N", "status": "draft"}, "details": ["Stunnel 5.00 through 5.13, when using the redirect option, does not redirect client connections to the expected server after the initial connection, which allows remote attackers to bypass authentication."], "name": "CVE-2015-3644", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Not affected", "package_name": "stunnel", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "stunnel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "stunnel", "product_name": "Red Hat Enterprise Linux 7"}], "public_date": "2015-05-14T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2015-3644\nhttps://nvd.nist.gov/vuln/detail/CVE-2015-3644"], "statement": "Not vulnerable. This issue did not affect the versions of stunnel as shipped with Red Hat Enterprise Linux 5, 6, and 7.", "threat_severity": "Important"}

{}