CVE-2019-13565

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When using SASL authentication and session encryption, and relying on the SASL security layers in slapd access controls, it is possible to obtain access that would otherwise be denied via a simple bind for any identity covered in those ACLs. After the first SASL bind is completed, the sasl_ssf value is retained for all new non-SASL connections. Depending on the ACL configuration, this can affect different types of operations (searches, modifications, etc.). In other words, a successful authorization step completed by one user affects the authorization requirement for a different user."}, {"lang": "es", "value": "Se detect\u00f3 un problema en OpenLDAP versiones 2.x anteriores a 2.4.48. Cuando se utiliza la autenticaci\u00f3n SASL y el cifrado de sesi\u00f3n y confiando en las capas de seguridad SASL en los controles de acceso slapd, es posible obtener acceso que, de lo contrario, se denegar\u00eda por medio de un enlace simple para cualquier identidad cubierta en esas ACL. Una vez completado el primer enlace SASL, se conserva el valor sasl_ssf para todas las nuevas conexiones que no sean SASL. Dependiendo de la configuraci\u00f3n de ACL, esto puede afectar a diferentes tipos de operaciones (b\u00fasquedas, modificaciones, etc.). En otras palabras, un paso de autorizaci\u00f3n completado con \u00e9xito por un usuario afecta al requisito de autorizaci\u00f3n para un usuario diferente."}], "id": "CVE-2019-13565", "lastModified": "2026-10-14T07:16:46.353", "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": "2019-07-26T13:15:12.720", "references": [{"source": "cve@mitre.org", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00053.html"}, {"source": "cve@mitre.org", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00058.html"}, {"source": "cve@mitre.org", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://seclists.org/fulldisclosure/2019/Dec/26"}, {"source": "cve@mitre.org", "url": "https://lists.apache.org/thread.html/r1b103833cb5bc8466e24ff0ecc5e75b45a705334ab6a444e64e840a0%40%3Cissues.bookkeeper.apache.org%3E"}, {"source": 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{"bugzilla": {"description": "openldap: ACL restrictions bypass due to sasl_ssf value being set permanently", "id": "1730477", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1730477"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.4", "cvss3_scoring_vector": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N", "status": "draft"}, "cwe": "CWE-284", "details": ["An issue was discovered in OpenLDAP 2.x before 2.4.48. When using SASL authentication and session encryption, and relying on the SASL security layers in slapd access controls, it is possible to obtain access that would otherwise be denied via a simple bind for any identity covered in those ACLs. After the first SASL bind is completed, the sasl_ssf value is retained for all new non-SASL connections. Depending on the ACL configuration, this can affect different types of operations (searches, modifications, etc.). In other words, a successful authorization step completed by one user affects the authorization requirement for a different user."], "name": "CVE-2019-13565", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Out of support scope", "package_name": "openldap", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "compat-openldap", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "openldap", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "compat-openldap", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Will not fix", "package_name": "openldap", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "openldap", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/a:redhat:jboss_core_services:1", "fix_state": "Out of support scope", "package_name": "openldap", "product_name": "Red Hat JBoss Core Services"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_application_platform:5", "fix_state": "Out of support scope", "package_name": "openldap", "product_name": "Red Hat JBoss Enterprise Application Platform 5"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_web_server:2", "fix_state": "Out of support scope", "package_name": "openldap", "product_name": "Red Hat JBoss Enterprise Web Server 2"}], "public_date": "2019-07-24T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2019-13565\nhttps://nvd.nist.gov/vuln/detail/CVE-2019-13565\nhttp://www.openldap.org/lists/openldap-announce/201907/msg00001.html\nhttps://openldap.org/its/?findid=9052"], "statement": "This issue did not affect the versions of openldap as shipped with Red Hat Enterprise Linux 8, as it only affects the openldap-servers package, which is not shipped.", "threat_severity": "Moderate"}

{}