App instance property lock is configured for all multitenant applications
Overview
Section titled “Overview”App instance property lock prevents changes to sensitive properties of a multitenant application after the application is provisioned in another tenant. Without a lock, critical properties such as application credentials can be maliciously or unintentionally modified, causing disruptions, increased risk, unauthorized access, or privilege escalations.
Remediation
Section titled “Remediation”Enable the app instance property lock for all multitenant applications and specify the properties to lock.
Run it
Section titled “Run it”The check runs as part of the whole assessment, with the ZeroTrustAssessment module installed:
Install-Module ZeroTrustAssessment -Scope CurrentUserConnect-MaesterInvoke-Maester -Pack ZTA -SkipBuiltInLeave out -SkipBuiltIn to run Maester’s own checks in the same run.
About this check
| Severity | High |
| Effort to fix | Low |
| Impact on users | Low |
| Pillar | Identity |
| Category | Access control |
| Product | Entra ID |
| Feature | Applications |
| Area | Applications and workload identities |
| ATT&CK | T1098.001 Additional Cloud Credentials |
| Licence | Free |
| Tenant | Workforce, External |
Product, feature, area and ATT&CK are Maester’s: the assessment does not record them, so Maester keeps them in the pack’s taxonomy.json.
A Microsoft check, part of the Zero Trust Assessment pack. Text from ZeroTrustAssessment 3.1.0, © Microsoft, MIT licence.