QID 982936

QID 982936: Python (pip) Security Update for pysaml2 (GHSA-5p3x-r448-pc62)

Security update has been released for pysaml2 to fix the vulnerability.

Note: The preceding description block is extracted directly from the security advisory. Using automation, we have attempted to clean and format it as much as possible without introducing additional issues.

All users of pysaml2 that use the default `CryptoBackendXmlSec1` backend and need to verify signed SAML documents are impacted. `pysaml2 <= 6.4.1` does not ensure that a signed SAML document is correctly signed. The default `CryptoBackendXmlSec1` backend is using the `xmlsec1` binary to verify the signature of signed SAML documents, but by default, `xmlsec1` accepts any type of key found within the given document. `xmlsec1` needs to be configured explicitly to only use only _x509 certificates_ for the verification process of the SAML document signature.

  • CVSS V3 rated as High - 6.5 severity.
  • CVSS V2 rated as Medium - 4.3 severity.
    • Solution
    Users should upgrade to pysaml2 `v6.5.0`.Workaround:
    No workaround provided at this point.
    Vendor References

    CVEs related to QID 982936

    CVE-2021-21239 |
    Software Advisories
    Advisory ID Software Component Link
    GHSA-5p3x-r448-pc62 pysaml2 URL Logo github.com/advisories/GHSA-5p3x-r448-pc62
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