{"vulnerability": "CVE-2021-21238", "sightings": [{"uuid": "2011dd80-2903-4922-9ad1-237b291e4156", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-21238", "type": "seen", "source": "https://t.me/cibsecurity/22495", "content": "\u203c CVE-2021-21238 \u203c\n\nPySAML2 is a pure python implementation of SAML Version 2 Standard. PySAML2 before 6.5.0 has an improper verification of cryptographic signature vulnerability. All users of pysaml2 that need to validate signed SAML documents are impacted. The vulnerability is a variant of XML Signature wrapping because it did not validate the SAML document against an XML schema. This allowed invalid XML documents to be processed and such a document can trick pysaml2 with a wrapped signature. This is fixed in PySAML2 6.5.0.\n\n\ud83d\udcd6 Read\n\nvia \"National Vulnerability Database\".", "creation_timestamp": "2021-01-21T18:28:14.000000Z"}, {"uuid": "0a726401-7fca-4b7c-b728-7bd0c3d46c6c", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-21238", "type": "seen", "source": "https://t.me/arpsyndicate/4659", "content": "#ExploitObserverAlert\n\nCVE-2021-21238\n\nDESCRIPTION: Exploit Observer has 9 entries in 3 file formats related to CVE-2021-21238. PySAML2 is a pure python implementation of SAML Version 2 Standard. PySAML2 before 6.5.0 has an improper verification of cryptographic signature vulnerability. All users of pysaml2 that need to validate signed SAML documents are impacted. The vulnerability is a variant of XML Signature wrapping because it did not validate the SAML document against an XML schema. This allowed invalid XML documents to be processed and such a document can trick pysaml2 with a wrapped signature. This is fixed in PySAML2 6.5.0.\n\nFIRST-EPSS: 0.001070000\nNVD-IS: 3.6\nNVD-ES: 2.8\nARPS-EXPLOITABILITY: 0.6908515", "creation_timestamp": "2024-04-13T13:18:43.000000Z"}]}