Privilege Escalation via IDOR: Arbitrary Admin Password Reset

Vulnerability Overview Vulnerability Title: Logic Vulnerability: Arbitrary Administrator Password Modification Vulnerability Type: Improper Access Control / Privilege Escalation / Arbitrary Administrator Password Modification CWE ID: CWE-269: Improper Privilege Management Vulnerability Location: Vulnerability Description: The backend administrator editing interface has a privilege control flaw. While this method restricts status modifications for the super administrator with , it lacks effective validation of whether the currently logged-in administrator has the authority to modify the target administrator. An attacker with a regular administrator account can modify other administrator account information, including the password of the super administrator account, by crafting a request. Since the interface directly trusts parameters like , , and from the request, a regular administrator can change the target administrator's to the super administrator's and submit a new password, thereby resetting the super administrator account's password. This issue is a typical backend privilege escalation logic vulnerability, which can lead to regular administrators elevating their privileges or even completely taking over the backend management system. Vulnerability Cause Analysis: The method has the following issues: 1. Only restricts status modification when ; 2. Does not validate whether the current administrator has permission to edit the target administrator; 3. Does not restrict regular administrators from modifying other administrator accounts; 4. Does not restrict regular administrators from modifying super administrator accounts; 5. Does not implement privilege-based access control for sensitive fields, such as: - - - - 6. The server does not perform object-level permission checks based on the current logged-in user's role. Therefore, a regular administrator can edit any administrator account by modifying the parameter in the request. Impact Scope Affected Interface: Affected Functionality: Backend administrator editing functionality Affected Accounts: All administrator accounts, including the super administrator account Remediation Plan Remediation Recommendations: 1. Add permission validation logic in the method to ensure that the currently logged-in administrator can only edit their own account or administrator accounts for which they have appropriate permissions. 2. Implement privilege-based access control for sensitive fields (such as , , , ), allowing only administrators with appropriate permissions to modify these fields. 3. The server should perform object-level permission checks based on the current logged-in user's role to prevent privilege escalation. 4. Log modification operations on administrator accounts for auditing and tracking purposes. POC Code Reproduction Result After the request is submitted successfully, the super administrator account password is changed to: Subsequently, the super administrator account and the new password can be used to log in to the backend, proving that a regular administrator can escalate privileges to modify the super administrator's password. Vulnerability Impact An attacker exploiting this vulnerability may cause the following impacts: 1. A regular administrator can modify any administrator's password; 2. A regular administrator can reset the super administrator's password; 3. An attacker can take over the super administrator account; 4. Further modifications to system configurations, user data, and business data are possible; 5. New high-privilege accounts can be created; 6. Critical backend data can be deleted or tampered with; 7. Combined with features like file upload and template editing, server privileges can be further obtained. Risk Level Recommended Risk Level: High / Critical Reasons: The vulnerability can lead to a regular administrator directly taking over the super administrator account; It affects the core privilege system of the backend; The exploitation conditions are low, requiring only regular administrator privileges; Successful exploitation can result in complete loss of system control.

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Privilege Escalation via IDOR: Arbitrary Admin Password Reset

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