Vulnerability Monitor

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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.

Security Impact Summary

This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 5.5, requiring local system access to exploit with relatively low complexity without requiring user interaction requiring only low-level privileges . The vulnerability impacts integrity (unauthorized modifications), for affected systems. Impacting 13 products from microsoft, from microsoft, from microsoft and 10 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

First disclosed in 2018, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.

Published

2018-07-11T00:29:02.587

Last Modified

2024-11-21T04:13:40.677

Status

Modified

Source

[email protected]

Severity

CVSSv3.0: 5.5 (MEDIUM)

CVSSv2 Vector

AV:L/AC:L/Au:N/C:N/I:P/A:N

  • Access Vector: LOCAL
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: NONE
  • Integrity Impact: PARTIAL
  • Availability Impact: NONE
Exploitability Score

3.9

Impact Score

2.9

Weaknesses
  • Type: Primary
    CWE-295
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application microsoft .net_framework 3.0 Yes
Operating System microsoft windows_server_2008 - No
Application microsoft .net_framework 3.5 Yes
Operating System microsoft windows_10 - No
Operating System microsoft windows_10 1607 No
Operating System microsoft windows_10 1703 No
Operating System microsoft windows_10 1709 No
Operating System microsoft windows_10 1803 No
Operating System microsoft windows_8.1 * No
Operating System microsoft windows_server 1803 No
Operating System microsoft windows_server_2012 * No
Operating System microsoft windows_server_2012 r2 No
Operating System microsoft windows_server_2016 * No
Application microsoft .net_framework 3.5.1 Yes
Operating System microsoft windows_7 - No
Operating System microsoft windows_server_2008 r2 No
Application microsoft .net_framework 4.5.2 Yes
Operating System microsoft windows_7 - No
Operating System microsoft windows_8.1 * No
Operating System microsoft windows_rt_8.1 - No
Operating System microsoft windows_server_2008 * No
Operating System microsoft windows_server_2008 r2 No
Operating System microsoft windows_server_2012 * No
Operating System microsoft windows_server_2012 r2 No
Application microsoft .net_framework 4.6 Yes
Operating System microsoft windows_server_2008 * No
Application microsoft .net_framework 4.6.2 Yes
Application microsoft .net_framework 4.7 Yes
Application microsoft .net_framework 4.7.1 Yes
Application microsoft .net_framework 4.7.2 Yes
Operating System microsoft windows_10 1607 No
Operating System microsoft windows_server_2016 - No
Application microsoft .net_framework 4.6 Yes
Application microsoft .net_framework 4.6.1 Yes
Application microsoft .net_framework 4.6.2 Yes
Operating System microsoft windows_10 - No
Application microsoft .net_framework 4.6 Yes
Application microsoft .net_framework 4.6.1 Yes
Application microsoft .net_framework 4.6.2 Yes
Application microsoft .net_framework 4.7 Yes
Application microsoft .net_framework 4.7.1 Yes
Application microsoft .net_framework 4.7.2 Yes
Operating System microsoft windows_7 - No
Operating System microsoft windows_8.1 * No
Operating System microsoft windows_rt_8.1 - No
Operating System microsoft windows_server_2008 r2 No
Operating System microsoft windows_server_2012 * No
Operating System microsoft windows_server_2012 r2 No
Application microsoft .net_framework 4.7.2 Yes
Operating System microsoft windows_10 1803 No
Operating System microsoft windows_server 1803 No
Application microsoft powershell_core 6.0 Yes
Application microsoft powershell_core 6.1 Yes
Application microsoft .net_core 1.0 Yes
Application microsoft .net_core 1.1 Yes
Application microsoft .net_core 2.0 Yes
Application microsoft .net_framework_developer_pack 4.7.2 Yes
Application microsoft asp.net_core 1.0 Yes
Application microsoft asp.net_core 1.1 Yes
Application microsoft asp.net_core 2.0 Yes
References

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For microsoft's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.