SAML XML Signature wrapping
CVE-2021-21238

6.5MEDIUM

Key Information:

Vendor

Identitypython

Status
Pysaml2
Vendor
CVE Published:
21 January 2021

What is 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.

Human OS v1.0:
Ageing Is an Unpatched Zero-Day Vulnerability.

Remediate biological technical debt. Prime Ageing uses 95% high-purity SIRT6 activation to maintain genomic integrity and bolster systemic resilience.

Deploy the Patch

Affected Version(s)

pysaml2 < 6.5.0

References

https://pypi.org/project/pysaml2
x_refsource_MISC
https://github.com/IdentityPython/pysaml2/releases/tag/v6...
x_refsource_MISC
https://github.com/IdentityPython/pysaml2/security/adviso...
x_refsource_CONFIRM

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
.