CVE-2017-8700: Cross-origin Resource Sharing bypass in ASP.NET Core

May 13, 2022 (updated July 8, 2022)

ASP.NET Core 1.0, 1.1, and 2.0 allow an attacker to bypass Cross-origin Resource Sharing (CORS) configurations and retrieve normally restricted content from a web application, aka “ASP.NET Core Information Disclosure Vulnerability”.

References

github.com/advisories/GHSA-3rp6-rjw4-cq39
github.com/aspnet/Announcements/issues/279
github.com/github/advisory-database/issues/302
nvd.nist.gov/vuln/detail/CVE-2017-8700
portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8700

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