CVE-2025-4433 in Server
Summary
by MITRE • 05/30/2025
Improper access control in user group management in Devolutions Server 2025.1.7.0 and earlier allows a non-administrative user with both "User Management" and "User Group Management" permissions to perform privilege escalation by adding users to groups with administrative privileges.
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Analysis
by VulDB Data Team • 11/26/2025
This vulnerability exists within Devolutions Server version 2025.1.7.0 and earlier, specifically in the user group management functionality where improper access control mechanisms fail to properly validate user permissions. The flaw allows a non-administrative user who possesses both "User Management" and "User Group Management" permissions to escalate their privileges through unauthorized group membership modifications. This represents a critical security weakness that directly violates the principle of least privilege and undermines the server's access control model.
The technical implementation of this vulnerability stems from insufficient validation checks within the group membership assignment process. When a user with limited permissions attempts to add another user to a group that grants administrative privileges, the system fails to verify whether the requesting user has the necessary authorization to perform such operations. This oversight creates a direct pathway for privilege escalation attacks where malicious or compromised users can elevate their privileges without proper administrative oversight.
From an operational impact perspective, this vulnerability poses significant risks to organizations relying on Devolutions Server for credential management and access control. The ability to escalate privileges through group membership manipulation can lead to unauthorized access to sensitive systems, data breaches, and potential lateral movement within network environments. Attackers could leverage this vulnerability to gain administrative access to critical infrastructure, making it particularly dangerous in enterprise environments where Devolutions Server typically manages privileged credentials and access controls.
The vulnerability aligns with CWE-285, which addresses improper authorization in access control systems, and maps to ATT&CK technique T1078.004 for valid accounts and T1548.005 for abuse of cloud infrastructure. Organizations should immediately implement mitigations including restricting user permissions to prevent users from having both "User Management" and "User Group Management" capabilities simultaneously. Additionally, administrators should review and enforce proper role-based access control policies, implement regular permission audits, and apply the latest security patches from Devolutions to address this vulnerability. The recommended approach involves separating administrative functions and implementing mandatory access controls that prevent privilege escalation through group membership modifications.