CVE-2019-1006: Improper Certificate Validation

July 15, 2019 (updated August 24, 2020)

An authentication bypass vulnerability exists in Windows Communication Foundation (WCF) and Windows Identity Foundation (WIF), allowing signing of SAML tokens with arbitrary symmetric keys, aka ‘WCF/WIF SAML Token Authentication Bypass Vulnerability’.

References

nvd.nist.gov/vuln/detail/CVE-2019-1006
portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1006

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