{"id":"GHSA-j8j8-348v-wfm3","summary":"Python-saml allows manipulation of SAML data without invalidation of cryptographic signature","details":"OneLogin PythonSAML 2.3.0 and earlier may incorrectly utilize the results of XML DOM traversal and canonicalization APIs in such a way that an attacker may be able to manipulate the SAML data without invalidating the cryptographic signature, allowing the attack to potentially bypass authentication to SAML service providers.","aliases":["CVE-2017-11427","PYSEC-2019-198"],"modified":"2024-10-25T21:25:35.106871Z","published":"2019-07-05T21:11:26Z","database_specific":{"cwe_ids":["CWE-287"],"severity":"HIGH","github_reviewed":true,"github_reviewed_at":"2020-06-16T21:42:49Z","nvd_published_at":null},"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2017-11427"},{"type":"WEB","url":"https://github.com/SAML-Toolkits/python-saml/commit/fad881b4432febea69d70691dfed51c93f0de10f"},{"type":"WEB","url":"https://duo.com/blog/duo-finds-saml-vulnerabilities-affecting-multiple-implementations"},{"type":"PACKAGE","url":"https://github.com/SAML-Toolkits/python-saml"},{"type":"ADVISORY","url":"https://github.com/advisories/GHSA-j8j8-348v-wfm3"},{"type":"WEB","url":"https://github.com/pypa/advisory-database/tree/main/vulns/python-saml/PYSEC-2019-198.yaml"},{"type":"WEB","url":"https://www.kb.cert.org/vuls/id/475445"}],"affected":[{"package":{"name":"python-saml","ecosystem":"PyPI","purl":"pkg:pypi/python-saml"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.0"}]}],"versions":["2.0.0","2.0.1","2.0.2","2.1.0","2.1.1","2.1.2","2.1.3","2.1.4","2.1.5","2.1.6","2.1.7","2.1.8","2.1.9","2.2.0","2.2.1","2.2.2","2.2.3","2.3.0"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2019/07/GHSA-j8j8-348v-wfm3/GHSA-j8j8-348v-wfm3.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N"}]}