services / Azure / Web App connection string

Connection strings of an Azure App Service web app that embed credentials for backing databases and storage services.

Connection strings by definition contain database/storage credentials (passwords, account keys, SAS tokens) returned in cleartext; credential material.

Microsoft.​Web/​Sites/​config/​web/​connectionstrings/​read

Reading a connection string returns embedded backing-store credentials in cleartext, exportable for direct authenticated access to the data store.

Risks

1. Cryptographic exfiltration (CRITICAL)
2. Lateral movement (BOOST)

Scope: CRITICAL

This privilege may grant access to sensitive data from a significant fraction of organizational functions, allow interruption of critical organizational services, or its exploit could lead to significant privilege escalation.

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