ASP.NET Core Spoofing Vulnerability

CVE-2019-1075
Security Vulnerability

Released: Jul 9, 2019

Assigning CNA
Microsoft
CVE.org link
CVE-2019-1075

Executive Summary

A spoofing vulnerability exists in ASP.NET Core that could lead to an open redirect. An attacker who successfully exploited the vulnerability could redirect a targeted user to a malicious website.

To exploit the vulnerability, an attacker could send a link that has a specially crafted URL, and convince the user to click the link.

The update addresses the vulnerability by correcting how ASP.NET Core parses URLs.

Exploitability

The following table provides an exploitability assessment for this vulnerability at the time of original publication.

Publicly disclosed
No
Exploited
No
Exploitability assessment
Exploitation Less Likely

Acknowledgements

  • Ifrah Iman (@IfrahIman_)
Microsoft recognizes the efforts of those in the security community who help us protect customers through coordinated vulnerability disclosure. See Acknowledgements for more information.

Security Updates

To determine the support lifecycle for your software, see the Microsoft Support Lifecycle.

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Disclaimer

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Revisions

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