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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-2024-43477 Microsoft Entra ID Elevation of Privilege Vulnerability — Microsoft Entra 7.5 High 2024-08-23
CVE-2024-3127 Improper Access Control in GitLab — GitLab 4.3 Medium 2024-08-22
CVE-2024-43780 Unauthorized channel file upload — Mattermost 4.3 Medium 2024-08-22
CVE-2024-40884 Unauthorized disabling of invite URL — Mattermost 2.7 Low 2024-08-22
CVE-2024-42497 Insufficient permissions checks on teams — Mattermost 6.0 Medium 2024-08-22
CVE-2024-8071 System Role with edit access to permissions can elevate themselves to system admin — Mattermost 4.7 Medium 2024-08-22
CVE-2024-43813 IDOR when marking read a user's channel — Mattermost 4.3 Medium 2024-08-22
CVE-2024-32939 Email addresses of remote users visible in props regardless of server settings — Mattermost 4.3 Medium 2024-08-22
CVE-2024-38175 Azure Managed Instance for Apache Cassandra Elevation of Privilege Vulnerability — Azure Managed Instance for Apache Cassandra 9.6 Critical 2024-08-20
CVE-2024-27187 [20240804] - Core - Improper ACL for backend profile view — Joomla! CMS 6.5AI Medium AI 2024-08-20
CVE-2024-43409 Ghost's improper authentication allows access to member information and actions — Ghost 6.5 Medium 2024-08-20
CVE-2024-43397 Potential unauthorized access issue in apollo-portal — apollo 4.3 Medium 2024-08-20
CVE-2024-43377 Umbraco CMS Improper Access Control vulnerability — Umbraco-CMS 5.4 Medium 2024-08-20
CVE-2024-7921 Anhui Deshun Intelligent Technology Jieshun JieLink+ JSOTC2016 GetDataList access control — Jieshun JieLink+ JSOTC2016 4.3 Medium 2024-08-19
CVE-2024-7920 Anhui Deshun Intelligent Technology Jieshun JieLink+ JSOTC2016 GetParkInThroughDeivces access control — Jieshun JieLink+ JSOTC2016 4.3 Medium 2024-08-19
CVE-2024-7919 Anhui Deshun Intelligent Technology Jieshun JieLink+ JSOTC2016 GetDataList access control — Jieshun JieLink+ JSOTC2016 5.3 Medium 2024-08-19
CVE-2024-6221 Improper Access Control in corydolphin/flask-cors — corydolphin/flask-cors 9.1AI Critical AI 2024-08-18
CVE-2024-39414 Being able to import/export tax rates without proper privileges — Adobe Commerce 4.3 Medium 2024-08-14
CVE-2024-38163 Windows Update Stack Elevation of Privilege Vulnerability — Windows Server 2022 7.8 High 2024-08-13
CVE-2024-38223 Windows Initial Machine Configuration Elevation of Privilege Vulnerability — Windows 10 Version 1809 6.8 Medium 2024-08-13
CVE-2024-38195 Azure CycleCloud Remote Code Execution Vulnerability — Azure CycleCloud 8.2.0 7.8 High 2024-08-13
CVE-2024-38162 Azure Connected Machine Agent Elevation of Privilege Vulnerability — Azure Connected Machine Agent 7.8 High 2024-08-13
CVE-2023-31341 AMD μProf 安全漏洞 — μProf Tool 7.3 High 2024-08-13
CVE-2024-36505 Fortinet FortiOS 访问控制错误漏洞 — FortiOS 4.7 Medium 2024-08-13
CVE-2024-41905 Siemens SINEC Traffic Analyzer 访问控制错误漏洞 — SINEC Traffic Analyzer 6.8 Medium 2024-08-13
CVE-2024-41732 Improper Access Control in SAP Netweaver Application Server ABAP — SAP NetWeaver Application Server ABAP 4.7 Medium 2024-08-13
CVE-2024-42480 Kamaji's RBAC Roles for `etcd` are not disjunct — kamaji 8.1 High 2024-08-12
CVE-2024-29082 Vonets WiFi Bridges Improper Access Control — VAR1200-H 8.6 High 2024-08-08
CVE-2024-0104 NVIDIA多款产品 安全漏洞 — Mellanox OS 4.2 Medium 2024-08-08
CVE-2024-42354 Shopware vulnerable to Improper Access Control with ManyToMany associations in store-api — shopware 5.3 Medium 2024-08-08

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.