Spoofing attack in Microsoft products - CVE-2019-0657
Published: February 12, 2019 / Updated: February 13, 2019
Vulnerability identifier: #VU17638
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2019-0657
CWE-ID: CWE-451
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Microsoft
Affected software:
Microsoft .NET Framework
ASP.NET Core MVC
Visual Studio
Microsoft .NET Framework
ASP.NET Core MVC
Visual Studio
Detailed vulnerability description
The vulnerability allows a remote attacker to conduct spoofing attack.
The vulnerability exists in thev .Net Framework API's and Visual Studio in the way they parse URL's. A remote attacker can provide a URL string to an application that attempts to verify that the URL belongs to a specific hostname or to a subdomain of that hostname, bypass security logic intended to ensure that a user-provided URL belonged to a specific hostname or a subdomain of that hostname to cause privileged communication to be made to an untrusted service as if it was a trusted service.
How to mitigate CVE-2019-0657
Install updates from vendor's website.