{"id":"CVE-2023-37471","aliases":["EUVD-2023-1953","GHSA-4mh8-9wq6-rjxg"],"status":"published","title":"User impersonation using SAMLv1.x SSO in Open Access Management","description":"Open Access Management (OpenAM) is an access management solution that includes Authentication, SSO, Authorization, Federation, Entitlements and Web Services Security. OpenAM up to version 14.7.2 does not properly validate the signature of SAML responses received as part of the SAMLv1.x Single Sign-On process. Attackers can use this fact to impersonate any OpenAM user, including the administrator, by sending a specially crafted SAML response to the SAMLPOSTProfileServlet servlet. This problem has been patched in  OpenAM 14.7.3-SNAPSHOT and later. User unable to upgrade should comment servlet `SAMLPOSTProfileServlet` from their pom file. See the linked GHSA for details.","severity":{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.0126,"percentile":0.69979,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-287"],"published":"2023-07-20T16:53:23Z","modified":"2026-10-28T10:33:09Z","fixes":[{"ecosystem":"Maven","package":"org.openidentityplatform.openam:openam-federation-library","fixed_in":["14.7.3"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Maven","package":"org.openidentityplatform.openam:openam-federation-library","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"14.7.3"}]}]},{"source":"osv","ecosystem":"Maven","package":"org.openidentityplatform.openam:openam-federation-library","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"14.7.3"}]}],"versions":["14.5.2","14.5.3","14.5.4","14.6.1","14.6.2","14.6.3","14.6.4","14.6.5","14.6.6","14.7.0","14.7.1","14.7.2"]}],"products":[{"vendor":"openidentityplatform","product":"openam"}],"references":[{"url":"https://github.com/OpenIdentityPlatform/OpenAM/security/advisories/GHSA-4mh8-9wq6-rjxg","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","advisory","web"]},{"url":"https://github.com/OpenIdentityPlatform/OpenAM/pull/624","tags":["x_refsource_MISC","x_transferred","Patch","fix","web"]},{"url":"https://github.com/OpenIdentityPlatform/OpenAM/commit/7c18543d126e8a567b83bb4535631825aaa9d742","tags":["x_refsource_MISC","x_transferred","Patch","fix","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-37471","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-4mh8-9wq6-rjxg"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/37xxx/CVE-2023-37471.json","tags":["advisory"]},{"url":"https://github.com/OpenIdentityPlatform/OpenAM","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2023-37471","title":"User impersonation using SAMLv1.x SSO in Open Access Management ","description":"Open Access Management (OpenAM) is an access management solution that includes Authentication, SSO, Authorization, Federation, Entitlements and Web Services Security. OpenAM up to version 14.7.2 does not properly validate the signature of SAML responses received as part of the SAMLv1.x Single Sign-On process. Attackers can use this fact to impersonate any OpenAM user, including the administrator, by sending a specially crafted SAML response to the SAMLPOSTProfileServlet servlet. This problem has been patched in  OpenAM 14.7.3-SNAPSHOT and later. User unable to upgrade should comment servlet `SAMLPOSTProfileServlet` from their pom file. See the linked GHSA for details.","status":"published","published":"2023-07-20T16:53:23.977Z","modified":"2024-10-24T14:53:39.21Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"critical","assessor":"cna"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:35:16.126506Z"}],"euvd":[{"id":"EUVD-2023-1953","description":"Open Access Management (OpenAM) is an access management solution that includes Authentication, SSO, Authorization, Federation, Entitlements and Web Services Security. OpenAM up to version 14.7.2 does not properly validate the signature of SAML responses received as part of the SAMLv1.x Single Sign-On process. Attackers can use this fact to impersonate any OpenAM user, including the administrator, by sending a specially crafted SAML response to the SAMLPOSTProfileServlet servlet. This problem has been patched in  OpenAM 14.7.3-SNAPSHOT and later. User unable to upgrade should comment servlet `SAMLPOSTProfileServlet` from their pom file. See the linked GHSA for details.","status":"published","published":"2023-07-20T16:53:23Z","modified":"2024-10-24T14:53:39Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"critical"}],"updated_at":"2026-11-03T00:05:20.595169Z"}],"ghsa":[{"id":"GHSA-4mh8-9wq6-rjxg","title":"OpenAM vulnerable to user impersonation using SAMLv1.x SSO process","description":"### Impact\nOpenAM up to version 14.7.2 does not properly validate the signature of SAML responses received as part of the SAMLv1.x Single Sign-On process. Attackers can use this fact to impersonate any OpenAM user, including the administrator, by sending a specially crafted SAML response to the SAMLPOSTProfileServlet servlet.\n\n### Patches\nThis problem has been patched in  OpenAM 14.7.3-SNAPSHOT and later\n\n### Workarounds\nOne should comment servlet `SAMLPOSTProfileServlet` in web.xml or disable SAML in OpenAM\n```xml\n\u003cservlet\u003e\n    \u003cdescription\u003eSAMLPOSTProfileServlet\u003c/description\u003e\n    \u003cservlet-name\u003eSAMLPOSTProfileServlet\u003c/servlet-name\u003e\n    \u003cservlet-class\u003ecom.sun.identity.saml.servlet.SAMLPOSTProfileServlet\u003c/servlet-class\u003e\n\u003c/servlet\u003e\n...\n\u003cservlet-mapping\u003e\n    \u003cservlet-name\u003eSAMLSOAPReceiver\u003c/servlet-name\u003e\n    \u003curl-pattern\u003e/SAMLSOAPReceiver\u003c/url-pattern\u003e\n\u003c/servlet-mapping\u003e\n```\n\n### References\n#624\n","status":"published","published":"2023-07-20T18:54:13Z","modified":"2023-11-11T05:04:27Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"critical"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:37:20.311836Z"}],"nvd":[{"id":"CVE-2023-37471","description":"Open Access Management (OpenAM) is an access management solution that includes Authentication, SSO, Authorization, Federation, Entitlements and Web Services Security. OpenAM up to version 14.7.2 does not properly validate the signature of SAML responses received as part of the SAMLv1.x Single Sign-On process. Attackers can use this fact to impersonate any OpenAM user, including the administrator, by sending a specially crafted SAML response to the SAMLPOSTProfileServlet servlet. This problem has been patched in  OpenAM 14.7.3-SNAPSHOT and later. User unable to upgrade should comment servlet `SAMLPOSTProfileServlet` from their pom file. See the linked GHSA for details.","status":"published","published":"2023-07-20T17:15:10.917Z","modified":"2026-06-17T06:08:17.127Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"critical","assessor":"secondary"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:08:17.044696Z"}],"osv":[{"id":"CVE-2023-37471","title":"User impersonation using SAMLv1.x SSO in Open Access Management ","description":"Open Access Management (OpenAM) is an access management solution that includes Authentication, SSO, Authorization, Federation, Entitlements and Web Services Security. OpenAM up to version 14.7.2 does not properly validate the signature of SAML responses received as part of the SAMLv1.x Single Sign-On process. Attackers can use this fact to impersonate any OpenAM user, including the administrator, by sending a specially crafted SAML response to the SAMLPOSTProfileServlet servlet. This problem has been patched in  OpenAM 14.7.3-SNAPSHOT and later. User unable to upgrade should comment servlet `SAMLPOSTProfileServlet` from their pom file. See the linked GHSA for details.","status":"published","published":"2023-07-20T16:53:23.977Z","modified":"2026-10-28T10:33:09.910643074Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"critical"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T15:44:32.510144Z"},{"id":"GHSA-4mh8-9wq6-rjxg","title":"OpenAM vulnerable to user impersonation using SAMLv1.x SSO process","description":"### Impact\nOpenAM up to version 14.7.2 does not properly validate the signature of SAML responses received as part of the SAMLv1.x Single Sign-On process. Attackers can use this fact to impersonate any OpenAM user, including the administrator, by sending a specially crafted SAML response to the SAMLPOSTProfileServlet servlet.\n\n### Patches\nThis problem has been patched in  OpenAM 14.7.3-SNAPSHOT and later\n\n### Workarounds\nOne should comment servlet `SAMLPOSTProfileServlet` in web.xml or disable SAML in OpenAM\n```xml\n\u003cservlet\u003e\n    \u003cdescription\u003eSAMLPOSTProfileServlet\u003c/description\u003e\n    \u003cservlet-name\u003eSAMLPOSTProfileServlet\u003c/servlet-name\u003e\n    \u003cservlet-class\u003ecom.sun.identity.saml.servlet.SAMLPOSTProfileServlet\u003c/servlet-class\u003e\n\u003c/servlet\u003e\n...\n\u003cservlet-mapping\u003e\n    \u003cservlet-name\u003eSAMLSOAPReceiver\u003c/servlet-name\u003e\n    \u003curl-pattern\u003e/SAMLSOAPReceiver\u003c/url-pattern\u003e\n\u003c/servlet-mapping\u003e\n```\n\n### References\n#624\n","status":"published","published":"2023-07-20T18:54:13Z","modified":"2026-09-10T03:49:42.56557054Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"critical"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T15:46:37.148947Z"}]}}