PySAML2 before 5.0.0 does not check that the signature in a SAML document is enveloped and thus signature wrapping is effective, i.e., it is affected by XML Signature Wrapping (XSW). The signature information and the node/object that is signed can be in different places and thus the signature verification will succeed, but the wrong data will be used. This specifically affects the verification of assertion that have been signed.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2020-01-13T18:11:37

Updated: 2024-08-04T08:30:23.936Z

Reserved: 2020-01-03T00:00:00

Link: CVE-2020-5390

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2020-01-13T19:15:12.413

Modified: 2023-02-01T17:08:55.967

Link: CVE-2020-5390

cve-icon Redhat

Severity : Important

Publid Date: 2020-01-13T00:00:00Z

Links: CVE-2020-5390 - Bugzilla