CVE-2025-24053: Microsoft Dataverse Privilege Escalation

CVE-2025-24053 Overview

CVE-2025-24053 is a privilege escalation vulnerability in Microsoft Dataverse caused by improper authentication mechanisms. This flaw allows an authorized attacker with existing high-privilege access to elevate their privileges over a network, potentially gaining unauthorized control over sensitive data and system operations within the Dataverse environment.

Critical Impact

An attacker with network access and existing privileges could exploit this authentication bypass to escalate privileges, potentially compromising data integrity and confidentiality across the Microsoft Dataverse platform.

Affected Products

• Microsoft Dataverse

Discovery Timeline

• 2025-03-13 - CVE-2025-24053 published to NVD
• 2025-07-03 - Last updated in NVD database

Technical Details for CVE-2025-24053

Vulnerability Analysis

This vulnerability stems from improper authentication handling (CWE-285: Improper Authorization) within Microsoft Dataverse. The flaw exists in the authentication validation logic that fails to properly verify privilege boundaries for authorized users. When an attacker with existing high-privilege access interacts with the platform over the network, the improper authentication mechanism allows them to bypass authorization checks and escalate their privileges beyond their intended scope.

The attack requires no user interaction and can be executed with low complexity over the network. While the attacker must already possess high-level privileges, successful exploitation grants them elevated access that could result in unauthorized data access, modification, and potential system compromise.

Root Cause

The root cause lies in CWE-285 (Improper Authorization), where Microsoft Dataverse fails to properly enforce authorization boundaries. The authentication mechanism does not adequately validate that authenticated users are restricted to their assigned privilege levels, allowing privilege escalation through network-accessible interfaces.

Attack Vector

The vulnerability is exploited over a network by an attacker who already possesses high-level privileges within the Microsoft Dataverse environment. The attack process involves:

1. The attacker authenticates to Microsoft Dataverse with existing elevated credentials
2. Through crafted requests targeting the improper authentication mechanism, the attacker bypasses authorization checks
3. The flawed validation logic grants the attacker additional privileges beyond their intended access level
4. With escalated privileges, the attacker can access, modify, or exfiltrate sensitive data

The vulnerability manifests in the authentication and authorization handling within Microsoft Dataverse. For complete technical details, refer to the Microsoft Security Update for CVE-2025-24053.

Detection Methods for CVE-2025-24053

Indicators of Compromise

• Unusual privilege escalation events in Microsoft Dataverse audit logs
• Anomalous authentication patterns from high-privilege accounts attempting unauthorized operations
• Unexpected access to resources or data beyond assigned permission boundaries
• Authentication requests with malformed or suspicious authorization tokens

Detection Strategies

• Enable and monitor Microsoft Dataverse audit logging for privilege escalation attempts
• Implement alerts for users accessing resources outside their normal scope
• Review authentication logs for patterns indicative of authorization bypass attempts
• Deploy network-level monitoring to detect unusual API call patterns to Dataverse endpoints

Monitoring Recommendations

• Configure Microsoft Defender for Cloud Apps to monitor Dataverse activities
• Enable detailed logging for all authentication and authorization events
• Set up automated alerts for privilege changes and escalation attempts
• Regularly review access control lists and permission assignments

How to Mitigate CVE-2025-24053

Immediate Actions Required

• Review the Microsoft Security Update for CVE-2025-24053 for official guidance
• Audit all high-privilege accounts in Microsoft Dataverse for suspicious activity
• Implement additional monitoring for privilege escalation attempts
• Review and restrict network access to Microsoft Dataverse environments

Patch Information

Microsoft has addressed this vulnerability through their security update process. As Microsoft Dataverse is a cloud-based service, patches are typically applied automatically by Microsoft. Administrators should verify their environment is current and consult the Microsoft Security Response Center advisory for specific remediation steps and confirmation that updates have been applied.

Workarounds

• Apply the principle of least privilege to minimize the number of high-privilege accounts
• Implement network segmentation to limit access to Microsoft Dataverse environments
• Enable multi-factor authentication for all administrative accounts
• Review and audit service principal permissions and access tokens regularly

# PowerShell: Review high-privilege users in Power Platform Admin Center
# Connect to Power Platform and audit administrative accounts
Get-AdminPowerAppEnvironment | ForEach-Object {
    Get-AdminPowerAppEnvironmentRoleAssignment -EnvironmentName $_.EnvironmentName
} | Where-Object { $_.RoleType -eq "Admin" } | Export-Csv -Path "DataverseAdminAudit.csv"