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{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:ipsilon_project:ipsilon:1.0.0:*:*:*:*:*:*:*", "matchCriteriaId": "EFB7EFFE-E740-4BB8-80ED-673CB09613BD", "vulnerable": true}, {"criteria": "cpe:2.3:a:ipsilon_project:ipsilon:1.0.1:*:*:*:*:*:*:*", "matchCriteriaId": "A5B73BD1-6E0B-4BD3-9F86-84F8BAC2B7A3", "vulnerable": true}, {"criteria": "cpe:2.3:a:ipsilon_project:ipsilon:1.0.2:*:*:*:*:*:*:*", "matchCriteriaId": "A12BB361-31E3-4891-8A51-09B68FDD1DF8", "vulnerable": true}, {"criteria": "cpe:2.3:a:ipsilon_project:ipsilon:1.1.0:*:*:*:*:*:*:*", "matchCriteriaId": "E4313C8A-E084-49F1-A5D7-952E2A99F2AC", "vulnerable": true}, {"criteria": "cpe:2.3:a:ipsilon_project:ipsilon:1.1.1:*:*:*:*:*:*:*", "matchCriteriaId": "358E95D3-46E3-4D29-AE26-D7FDC3D1DDD2", "vulnerable": true}, {"criteria": "cpe:2.3:a:ipsilon_project:ipsilon:1.2.0:*:*:*:*:*:*:*", "matchCriteriaId": "8D97F85E-BFA2-45C9-BE1F-54D378EBF181", "vulnerable": true}, {"criteria": "cpe:2.3:a:ipsilon_project:ipsilon:2.0.0:*:*:*:*:*:*:*", "matchCriteriaId": "EB8B7C4A-2080-4EC5-B7AB-DBFF8F991C4C", "vulnerable": true}, {"criteria": "cpe:2.3:a:ipsilon_project:ipsilon:2.0.1:*:*:*:*:*:*:*", "matchCriteriaId": "C439FC81-92F0-438C-9AB5-9120141B9574", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A vulnerability in ipsilon 2.0 before 2.0.2, 1.2 before 1.2.1, 1.1 before 1.1.2, and 1.0 before 1.0.3 was found that allows attacker to log out active sessions of other users. This issue is related to how it tracks sessions, and allows an unauthenticated attacker to view and terminate active sessions from other users. It is also called a \"SAML2 multi-session vulnerability.\""}, {"lang": "es", "value": "Se encontr\u00f3 una vulnerabilidad en ipsilon 2.0 en versiones anteriores a la 2.0.2, 1.2 anteriores a la 1.2.1, 1.1 anteriores a la 1.1.2 y 1.0 anteriores a la 1.0.3 que permite al atacante cerrar las sesiones activas de otros usuarios. Este problema est\u00e1 relacionado con la forma en la que se rastrean las sesiones y permite que un atacante no autenticado visualice y finalice las sesiones activas de otros usuarios. Esta vulnerabilidad tambi\u00e9n se conoce como \"SAML2 multi-session vulnerability\"."}], "id": "CVE-2016-8638", "lastModified": "2025-04-20T01:37:25.860", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 6.4, "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 4.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.1, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H", "version": "3.0"}, "exploitabilityScore": 3.9, "impactScore": 5.2, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2017-07-12T13:29:00.190", "references": [{"source": "secalert@redhat.com", "url": "http://rhn.redhat.com/errata/RHSA-2016-2809.html"}, {"source": "secalert@redhat.com", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/94439"}, {"source": "secalert@redhat.com", "tags": ["Issue Tracking", "Third Party Advisory"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-8638"}, {"source": "secalert@redhat.com", "tags": ["Vendor Advisory"], "url": "https://ipsilon-project.org/advisory/CVE-2016-8638.txt"}, {"source": "secalert@redhat.com", "url": "https://ipsilon-project.org/release/2.1.0.html"}, {"source": "secalert@redhat.com", "tags": ["Patch", "Vendor Advisory"], "url": "https://pagure.io/ipsilon/c/511fa8b7001c2f9a42301aa1d4b85aaf170a461c"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://rhn.redhat.com/errata/RHSA-2016-2809.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/94439"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking", "Third Party Advisory"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-8638"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://ipsilon-project.org/advisory/CVE-2016-8638.txt"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://ipsilon-project.org/release/2.1.0.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Vendor Advisory"], "url": "https://pagure.io/ipsilon/c/511fa8b7001c2f9a42301aa1d4b85aaf170a461c"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-384"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"acknowledgement": "This issue was discovered by Howard Johnson and Patrick Uiterwijk (Red Hat).", "affected_release": [{"advisory": "RHSA-2016:2809", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "ipsilon-0:1.0.0-13.el7_3", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2016-11-21T00:00:00Z"}], "bugzilla": {"description": "ipsilon: DoS via logging out all open SAML2 sessions", "id": "1392829", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1392829"}, "csaw": false, "cvss": {"cvss_base_score": "6.4", "cvss_scoring_vector": "AV:N/AC:L/Au:N/C:P/I:N/A:P", "status": "verified"}, "cvss3": {"cvss3_base_score": "8.2", "cvss3_scoring_vector": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H", "status": "verified"}, "cwe": "CWE-287", "details": ["A vulnerability in ipsilon 2.0 before 2.0.2, 1.2 before 1.2.1, 1.1 before 1.1.2, and 1.0 before 1.0.3 was found that allows attacker to log out active sessions of other users. This issue is related to how it tracks sessions, and allows an unauthenticated attacker to view and terminate active sessions from other users. It is also called a \"SAML2 multi-session vulnerability.\"", "A vulnerability was found in ipsilon in the SAML2 provider's handling of sessions. An attacker able to hit the logout URL could determine what service providers other users are logged in to and terminate their sessions."], "name": "CVE-2016-8638", "public_date": "2016-11-21T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2016-8638\nhttps://nvd.nist.gov/vuln/detail/CVE-2016-8638"], "threat_severity": "Important"}