Azure App Services takeover via legacy API

Binary Security found two vulnerabilities in the legacy Azure Resource Manager (ARM) REST API.
The first vulnerability allowed an attacker with Reader access to an Azure Function, acting from
a Windows host, to get an admin token that could be exchanged for a master key granting access
to all operations in Kudu (the Functions deployment service). This would allow them to tamper
with the function by deploying malicious code to it. The other vulnerability allowed an attacker
with Reader access …

access api app arm azure binary function host key legacy manager master master key operations reader rest rest api security services takeover token vulnerabilities vulnerability windows