id: PYSEC-2019-198
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.
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
references:
- type: WEB
  url: https://www.kb.cert.org/vuls/id/475445
- type: ARTICLE
  url: https://duo.com/blog/duo-finds-saml-vulnerabilities-affecting-multiple-implementations
- type: ADVISORY
  url: https://github.com/advisories/GHSA-j8j8-348v-wfm3
aliases:
- CVE-2017-11427
- GHSA-j8j8-348v-wfm3
modified: '2021-08-27T03:22:18.581552Z'
published: '2019-04-17T14:29:00Z'