CVE-2017-18106

{"containers": {"cna": {"affected": [{"product": "Crowd", "vendor": "Atlassian", "versions": [{"lessThan": "2.9.1", "status": "affected", "version": "unspecified", "versionType": "custom"}]}], "datePublic": "2019-03-04T00:00:00.000Z", "descriptions": [{"lang": "en", "value": "The identifier_hash for a session token in Atlassian Crowd before version 2.9.1 could potentially collide with an identifier_hash for another user or a user in a different directory, this allows remote attackers who can authenticate to Crowd or an application using Crowd for authentication to gain access to another user's session provided they can make their identifier hash collide with another user's session identifier hash."}], "problemTypes": [{"descriptions": [{"description": "Use of a Broken or Risky Cryptographic Algorithm", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2019-03-29T14:04:53.000Z", "orgId": "f08a6ab8-ed46-4c22-8884-d911ccfe3c66", "shortName": "atlassian"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://jira.atlassian.com/browse/CWD-5061"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "security@atlassian.com", "DATE_PUBLIC": "2019-03-04T00:00:00", "ID": "CVE-2017-18106", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "Crowd", "version": {"version_data": [{"version_affected": "<", "version_value": "2.9.1"}]}}]}, "vendor_name": "Atlassian"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "The identifier_hash for a session token in Atlassian Crowd before version 2.9.1 could potentially collide with an identifier_hash for another user or a user in a different directory, this allows remote attackers who can authenticate to Crowd or an application using Crowd for authentication to gain access to another user's session provided they can make their identifier hash collide with another user's session identifier hash."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "Use of a Broken or Risky Cryptographic Algorithm"}]}]}, "references": {"reference_data": [{"name": "https://jira.atlassian.com/browse/CWD-5061", "refsource": "MISC", "url": "https://jira.atlassian.com/browse/CWD-5061"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-05T21:13:48.419Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://jira.atlassian.com/browse/CWD-5061"}]}]}, "cveMetadata": {"assignerOrgId": "f08a6ab8-ed46-4c22-8884-d911ccfe3c66", "assignerShortName": "atlassian", "cveId": "CVE-2017-18106", "datePublished": "2019-03-29T14:04:53.177Z", "dateReserved": "2018-02-01T00:00:00.000Z", "dateUpdated": "2024-09-16T23:40:45.456Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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{"affected": [{"affectedData": [{"product": "Crowd", "vendor": "Atlassian", "versions": [{"lessThan": "2.9.1", "status": "affected", "version": "unspecified", "versionType": "custom"}]}], "source": "security@atlassian.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:atlassian:crowd:*:*:*:*:*:*:*:*", "matchCriteriaId": "EC94F873-D56A-4527-94D2-00B3677E6592", "versionEndExcluding": "2.9.1", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The identifier_hash for a session token in Atlassian Crowd before version 2.9.1 could potentially collide with an identifier_hash for another user or a user in a different directory, this allows remote attackers who can authenticate to Crowd or an application using Crowd for authentication to gain access to another user's session provided they can make their identifier hash collide with another user's session identifier hash."}, {"lang": "es", "value": "Un hash de identificaci\u00f3n para un token de sesi\u00f3n en Atlassian Crowd, en versiones anteriores a la 2.9.1, podr\u00eda colisionar con un identifier_hash para otro usuario o un usuario en un directorio diferente. Esto permite a los atacantes remotos obtener acceso a la sesi\u00f3n de otro usuario, con tal de que puedan hacer que su hash de identificaci\u00f3n colisione con el hash de identificaci\u00f3n de la sesi\u00f3n de otro usuario."}], "id": "CVE-2017-18106", "lastModified": "2026-06-17T01:12:12.773", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "PARTIAL", "baseScore": 6.0, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:M/Au:S/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 6.8, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.0"}, "exploitabilityScore": 1.6, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2019-03-29T14:29:00.313", "references": [{"source": "security@atlassian.com", "tags": ["Issue Tracking", "Vendor Advisory"], "url": "https://jira.atlassian.com/browse/CWD-5061"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking", "Vendor Advisory"], "url": "https://jira.atlassian.com/browse/CWD-5061"}], "sourceIdentifier": "security@atlassian.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-287"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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