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CWE-284 (访问控制不恰当) — Vulnerability Class 2612

2612 vulnerabilities classified as CWE-284 (访问控制不恰当). AI Chinese analysis included.

CWE-284 represents a critical security weakness where software fails to properly restrict access to sensitive resources, allowing unauthorized actors to interact with data or functions they should not reach. This flaw typically arises when developers neglect to implement robust authentication or authorization checks, enabling attackers to bypass security controls through direct URL manipulation, token forgery, or privilege escalation techniques. Exploitation often leads to severe consequences, including data breaches, unauthorized system modifications, or complete service disruption. To mitigate this risk, developers must enforce strict access control policies at every layer of the application architecture. This involves implementing comprehensive identity verification, applying the principle of least privilege, and rigorously validating user permissions before granting access to any protected resource, ensuring that only authenticated and authorized users can perform specific actions.

MITRE CWE Description
The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. Access control involves the use of several protection mechanisms such as: Authentication (proving the identity of an actor) Authorization (ensuring that a given actor can access a resource), and Accountability (tracking of activities that were performed) When any mechanism is not applied or otherwise fails, attackers can compromise the security of the product by gaining privileges, reading sensitive information, executing commands, evading detection, etc. There are two distinct behaviors that can introduce access control weaknesses: Specification: incorrect privileges, permissions, ownership, etc. are explicitly specified for either the user or the resource (for example, setting a password file to be world-writable, or giving administrator capabilities to a guest user). This action could be performed by the program or the administrator. Enforcement: the mechanism contains errors that prevent it from properly enforcing the specified access control requirements (e.g., allowing the user to specify their own privileges, or allowing a syntactically-incorrect ACL to produce insecure settings). This problem occurs within the program itself, in that it does not actually enforce the intended security policy that the administrator specifies.
Common Consequences (1)
Other Varies by Context
Mitigations (2)
Architecture and Design, Operation Very carefully manage the setting, management, and handling of privileges. Explicitly manage trust zones in the software.
Architecture and Design Compartmentalize the system to have "safe" areas where trust boundaries can be unambiguously drawn. Do not allow sensitive data to go outside of the trust boundary and always be careful when interfacing with a compartment outside of the safe area. Ensure that appropriate compartmentalization is built into the system design, and the compartmentalization allows for and reinforces privilege separatio…
Examples (2)
This code temporarily raises the program's privileges to allow creation of a new user folder.
def makeNewUserDir(username): if invalidUsername(username): #avoid CWE-22 and CWE-78 print('Usernames cannot contain invalid characters') return False try: raisePrivileges() os.mkdir('/home/' + username) lowerPrivileges() except OSError: print('Unable to create new user directory for user:' + username) return False return True
Bad · Python
This function runs an arbitrary SQL query on a given database, returning the result of the query.
function runEmployeeQuery($dbName, $name){ mysql_select_db($dbName,$globalDbHandle) or die("Could not open Database".$dbName); //Use a prepared statement to avoid CWE-89 $preparedStatement = $globalDbHandle->prepare('SELECT * FROM employees WHERE name = :name'); $preparedStatement->execute(array(':name' => $name)); return $preparedStatement->fetchAll(); } /.../ $employeeRecord = runEmployeeQuery('EmployeeDB',$_GET['EmployeeName']);
Bad · PHP
CVE ID Title CVSS Severity Published
CVE-2025-49692 Azure Connected Machine Agent Elevation of Privilege Vulnerability — Azure Connected Machine Agent 7.8 High 2025-09-09
CVE-2025-10072 Portabilis i-Educar enturmar access control — i-Educar 6.3 Medium 2025-09-07
CVE-2025-10071 Portabilis i-Educar cancelar-enturmacao-em-lote access control — i-Educar 6.3 Medium 2025-09-07
CVE-2025-10070 Portabilis i-Educar enturmacao-em-lote access control — i-Educar 6.3 Medium 2025-09-07
CVE-2025-53791 Microsoft Edge (Chromium-based) Security Feature Bypass Vulnerability — Microsoft Edge (Chromium-based) 4.7 Medium 2025-09-05
CVE-2025-10013 Portabilis i-Educar exportacao-para-o-seb access control — i-Educar 6.3 Medium 2025-09-05
CVE-2025-55238 Dynamics 365 FastTrack Implementation Assets Information Disclosure Vulnerability — Dynamics 365 FastTrack Implementation 7.5 High 2025-09-04
CVE-2025-54914 Azure Networking Elevation of Privilege Vulnerability — Networking 10.0 Critical 2025-09-04
CVE-2025-55244 Azure Bot Service Elevation of Privilege Vulnerability — Azure Bot Service 9.0 Critical 2025-09-04
CVE-2025-20335 Cisco Desk Phone 9800 Series, IP Phone 7800 and 8800 Series, and Video Phone 8875 with SIP Firmware Information Arbitrary File Write Vulnerability — Cisco Session Initiation Protocol (SIP) Software 5.3 Medium 2025-09-03
CVE-2025-57758 Contao has improper access control in the back end voters — contao 4.3 Medium 2025-08-28
CVE-2025-55741 unopim/unopim allows unauthorized product deletion via mass-delete endpoint — unopim 8.1 High 2025-08-22
CVE-2025-53763 Azure Databricks Elevation of Privilege Vulnerability — Microsoft Purview Data Governance 9.8 Critical 2025-08-21
CVE-2025-7051 N-central Syslog Configuration Insecure Direct Object Reference — N-central 8.3 High 2025-08-21
CVE-2025-20131 Cisco Identity Services Engine Arbitrary File Upload Vulnerability — Cisco Identity Services Engine Software 4.9 Medium 2025-08-20
CVE-2025-4962 IDOR Vulnerability in Template Creation via `projectId` Manipulation in lunary-ai/lunary — lunary-ai/lunary 4.3AI Medium AI 2025-08-18
CVE-2017-20199 Buttercup buttercup-browser-extension Vault access control — buttercup-browser-extension 3.1 Low 2025-08-15
CVE-2025-20219 Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software Access Control Bypass Vulnerability — Cisco Adaptive Security Appliance (ASA) Software 5.3 Medium 2025-08-14
CVE-2025-48861 BOSCH ctrlX OS 安全漏洞 — ctrlX OS - Setup 5.3 Medium 2025-08-14
CVE-2025-48860 Bosch Rexroth ctrlX OS 安全漏洞 — ctrlX OS - Setup 8.0 High 2025-08-14
CVE-2025-55196 External Secrets Operator Missing Namespace Restriction in PushSecret and SecretStore List() Calls Allows Unauthorized Secret Access — external-secrets 6.8AI Medium AI 2025-08-13
CVE-2025-49707 Azure Virtual Machines Spoofing Vulnerability — DCadsv5-series Azure VM 7.9 High 2025-08-12
CVE-2025-24999 Microsoft SQL Server Elevation of Privilege Vulnerability — Microsoft SQL Server 2016 Service Pack 3 (GDR) 8.8 High 2025-08-12
CVE-2025-53729 Microsoft Azure File Sync Elevation of Privilege Vulnerability — Azure File Sync 7.8 High 2025-08-12
CVE-2025-8795 LitmusChaos Litmus login access control — Litmus 6.3 Medium 2025-08-10
CVE-2025-46391 Emby MediaBrowser 访问控制错误漏洞 — MediaBrowser 6.5 Medium 2025-08-06
CVE-2025-27062 Improper Access Control in Automotive Multimedia — Snapdragon 7.8 High 2025-08-06
CVE-2025-54871 Electron Capture is Vulnerable to TCC Bypass via Misconfigured Node Fuses (macOS) — electroncapture 5.5 Medium 2025-08-05
CVE-2025-23277 NVIDIA GPU Display Driver 访问控制错误漏洞 — GPU Display Drivers 7.3 High 2025-08-02
CVE-2025-53113 GLPI technicians can access unauthorized information through external links — glpi 2.7 Low 2025-07-30

Vulnerabilities classified as CWE-284 (访问控制不恰当) represent 2612 CVEs. The CWE taxonomy describes the weakness; review individual CVEs for product-specific impact.