Spoofing attack in Microsoft products - CVE-2019-0657

Vulnerability details

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.

Affected software

How to mitigate CVE-2019-0657

External References

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0657

Related Security Bulletins

• Multiple vulnerabilities in Microsoft .NET Framework
• Multiple vulnerabilities in Microsoft Visual Studio