Security restrictions bypass in ASP.NET Core MVC and Microsoft .NET Framework - CVE-2018-8356

 

Security restrictions bypass in ASP.NET Core MVC and Microsoft .NET Framework - CVE-2018-8356

Published: July 10, 2018 / Updated: July 10, 2018


Vulnerability identifier: #VU13769
CSH Severity: Low
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2018-8356
CWE-ID: CWE-264
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to bypass security restrictions on the target system.

The vulnerability exists due to  improper validation of certificates by .NET Framework components. A remote unauthenticated attacker can present expired certificates when challenged and bypass security restrictions to conduct further attacks.


Affected software

ASP.NET Core MVC
Microsoft .NET Framework

How to mitigate CVE-2018-8356

Install updates from vendor's website.


External References

Related Security Bulletins