Vulnerability in Microsoft Asp.net Core
CVE-2018-8356
A security feature bypass vulnerability exists when Microsoft .NET Framework components do not correctly validate certificates, aka ".NET Framework Security Feature Bypass Vulnerability." This affects .NET Framework 4.7.2, Microsoft .NET Framework 3.0, Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2, ASP.NET Core 1.1, Microsoft .NET Framework 4.5.2, ASP.NET Core 2.0, ASP.NET Core 1.0, .NET Core 1.1, Microsoft .NET Framework 3.5, Microsoft .NET Framework 3.5.1, Microsoft .NET Framework 4.6/4.6.1/4.6.2, .NET Core 1.0, .NET Core 2.0, Microsoft .NET Framework 4.6, Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2, Microsoft .NET Framework 4.7.2.
Vulnerability class: Improper Certificate Validation
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.007 (54.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 54th percentile — 54.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000
Affected products
- Microsoft Asp.net Core — versions 1.0, 1.1, 2.0
- Microsoft Asp.net Core — versions 1.0, 1.1, 2.0
- Microsoft .Net Framework — versions 3.0 Service Pack 2 on Windows Server 2008 for 32-bit Systems Service Pack 2, 3.0 Service Pack 2 on Windows Server 2008 for Itanium-Based Systems Service Pack 2, 3.0 Service Pack 2 on Windows Server 2008 for x64-based Systems Service Pack 2
- Microsoft .Net Core — versions 1.0, 1.1, 2.0
- Microsoft .Net Core — versions 1.0, 1.1, 2.0
- Microsoft .Net Framework — versions 4.7.2 Developer Pack
- Microsoft .Net Framework — versions 3.0, 3.5, 3.5.1
- Microsoft .Net Framework Developer Pack — versions 4.7.2
- Microsoft Powershell Core — versions 6.0, 6.1
- Microsoft Windows 10 — versions 1607, 1703, 1709
Weakness classification (CWE)
References
- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8356 (Patch, Vendor Advisory)
- www.securityfocus.com/bid/104664 (VDB Entry, Third Party Advisory, vdb-entry)
- www.securitytracker.com/id/1041257 (VDB Entry, Third Party Advisory, vdb-entry)
Frequently asked questions
- What is CVE-2018-8356?
- CVE-2018-8356 is a medium-severity vulnerability in Microsoft Asp.net Core, classified under Improper Certificate Validation. CVSS score: 5.5/10. Published 2018-07-11.
- How severe is CVE-2018-8356?
- Medium severity. CVSS v3 base score is 5.5 out of 10.