saml-toolkits/python-saml · Security
Python-saml allows manipulation of SAML data without invalidation of cryptographic signature
- GHSA ID
- GHSA-j8j8-348v-wfm3
- CVE ID
- CVE-2017-11427
- Severity
- high
- Published
- Updated
- CVSS
- 7.7 · CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
- CVSS v3
- 7.7 · CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
- CVSS v4
- 8.3 · 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
Description
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.
CWEs
- CWE-287 · Improper Authentication
References
- https://nvd.nist.gov/vuln/detail/CVE-2017-11427 ↗
- https://duo.com/blog/duo-finds-saml-vulnerabilities-affecting-multiple-implementations ↗
- https://github.com/advisories/GHSA-j8j8-348v-wfm3 ↗
- https://www.kb.cert.org/vuls/id/475445 ↗
- https://github.com/SAML-Toolkits/python-saml/commit/fad881b4432febea69d70691dfed51c93f0de10f ↗
- https://github.com/pypa/advisory-database/tree/main/vulns/python-saml/PYSEC-2019-198.yaml ↗