services / Azure / Web App domain ownership identifiers

Domain ownership identifiers are the custom-domain verification tokens/configuration that bind and assert ownership of custom hostnames for an App Service web app.

Govern which custom domains can be associated with the app; manipulating them affects public-facing hostname routing for a single application.

Microsoft.​Web/​Sites/​domainownershipidentifiers/​write

Creating/updating domain ownership identifiers alters the custom-domain verification binding, letting an attacker assert ownership and route a custom domain/subdomain to the app.

Risks

1. Domain takeover (CRITICAL)
2. Data manipulation (HIGH)

Scope: HIGH

This privilege may grant access to sensitive data from a single organizational function, or allow interruption of a service supporting a single organizational function.

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