Vulnerability in Microsoft Identitymodel
CVE-2019-1006
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 Vul…
Vulnerability class: Improper Certificate Validation
EPSS: 0.060 (92.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
Affected products
- Microsoft Identitymodel — versions 7.0.0
- Microsoft Microsoft.identitymodel — versions 7.0.0
- Microsoft .Net Framework 2.0 — versions Service Pack 2 on Windows Server 2008 for Itanium-Based Systems Service Pack 2, Service Pack 2 on Windows Server 2008 for 32-bit Systems Service Pack 2, Service Pack 2 on Windows Server 2008 for x64-based Systems Service Pack 2
- Microsoft .Net Framework 3.0 — versions Service Pack 2 on Windows Server 2008 for Itanium-Based Systems Service Pack 2, Service Pack 2 on Windows Server 2008 for 32-bit Systems Service Pack 2, Service Pack 2 on Windows Server 2008 for x64-based Systems Service Pack 2
- Microsoft .Net Framework 3.5 — versions Windows Server 2012, Windows Server 2012 (Server Core installation), Windows 8.1 for 32-bit systems
- Microsoft .Net Framework 3.5.1 — versions Windows 7 for 32-bit Systems Service Pack 1, Windows 7 for x64-based Systems Service Pack 1, Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
- Microsoft .Net Framework 3.5 And 4.7.2 On Windows 10 Version 1809 For 32-bit Systems — versions unspecified
- Microsoft .Net Framework 3.5 And 4.7.2 On Windows 10 Version 1809 For X64-based Systems — versions unspecified
- Microsoft .Net Framework 3.5 And 4.7.2 On Windows Server 2019 — versions unspecified
- Microsoft .Net Framework 3.5 And 4.7.2 On Windows Server 2019 (Server Core Installation) — versions unspecified
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secure@microsoft.com (Patch, x_refsource_MISC, Vendor Advisory)
Frequently asked questions
- What is CVE-2019-1006?
- CVE-2019-1006 is a high-severity vulnerability in Microsoft Identitymodel, classified under Improper Certificate Validation. CVSS score: 7.5/10. Published 2019-07-15.
- How severe is CVE-2019-1006?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2019-1006 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.