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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-2021-46270 JFrog Artifactory 安全漏洞 — JFrog Artifactory 2.7 Low 2022-03-02
CVE-2021-45074 JFrog Artifactory 安全漏洞 — JFrog Artifactory 4.3 Medium 2022-03-02
CVE-2022-0824 Improper Access Control to Remote Code Execution in webmin/webmin — webmin/webmin 8.8 - 2022-03-02
CVE-2021-24688 Orange Form <= 1.0.1 - Unauthenticated Arbitrary Post Deletion — Orange Form 4.3 - 2022-02-28
CVE-2021-3967 Improper Access Control in zulip/zulip — zulip/zulip 8.8 - 2022-02-26
CVE-2020-14504 Rockwell Automation 1734-AENTR 授权问题漏洞 — 1734-AENTR 7.5 - 2022-02-24
CVE-2022-0732 TheSpyApp 访问控制错误漏洞 — Copy9 7.5 - 2022-02-24
CVE-2022-0731 Improper Access Control (IDOR) in dolibarr/dolibarr — dolibarr/dolibarr 7.1 - 2022-02-23
CVE-2022-0727 Improper Access Control in chocobozzz/peertube — chocobozzz/peertube 5.4 - 2022-02-23
CVE-2022-23981 WordPress Perfect Brands for WooCommerce plugin <= 2.0.4 - Set Featured Brand vulnerability — Perfect Brands for WooCommerce (WordPress plugin) 4.3 Medium 2022-02-18
CVE-2021-4201 Pre-authentication session hijacking — Access Management 9.6 Critical 2022-02-14
CVE-2022-24924 Google Android 安全漏洞 — LiveWallpaper 2.2 Low 2022-02-11
CVE-2022-24923 Google Android 安全漏洞 — SearchWidget 4.0 Medium 2022-02-11
CVE-2022-23997 Samsung Wear Os 安全漏洞 — Samsung Wearable Devices 4.0 Medium 2022-02-11
CVE-2022-23996 Samsung Wear Os 访问控制错误漏洞 — Samsung Wearable Devices 4.0 Medium 2022-02-11
CVE-2022-23994 SAMSUNG Wear Os 安全漏洞 — Samsung Wearable Devices 3.3 Low 2022-02-11
CVE-2022-23995 Samsung Wear OS 访问控制错误漏洞 — Samsung Wearable Devices 4.0 Medium 2022-02-11
CVE-2022-23433 SAMSUNG Device 安全漏洞 — Reminder 4.3 Medium 2022-02-11
CVE-2020-13677 Drupal 安全漏洞 — Core 5.9 - 2022-02-11
CVE-2020-13676 Drupal 访问控制错误漏洞 — Core 6.5 - 2022-02-11
CVE-2020-13675 Drupal 代码问题漏洞 — Core 9.1 - 2022-02-11
CVE-2022-21825 Citrix Systems Workspace App 安全漏洞 — Citrix Workspace App for Linux 7.8 - 2022-02-09
CVE-2022-21816 Nvidia vGPU Software 访问控制错误漏洞 — NVIDIA Virtual GPU Software and NVIDIA Cloud Gaming 5.5 Medium 2022-02-07
CVE-2022-21813 Nvidia GPU Display Driver for Linux 安全漏洞 — NVIDIA GPU Display Driver 6.1 Medium 2022-02-07
CVE-2021-21964 Sealevel Systems SeaConnect 370W 访问控制错误漏洞 — Sealevel 8.6 - 2022-02-04
CVE-2021-21965 Sealevel Systems SeaConnect 370w 授权问题漏洞 — Sealevel 8.6 - 2022-02-04
CVE-2022-0273 Improper Access Control in janeczku/calibre-web — janeczku/calibre-web 6.5 - 2022-01-30
CVE-2021-40416 Reolink Rlc-410W 访问控制错误漏洞 — n/a 8.8 - 2022-01-28
CVE-2021-40415 Reolink Rlc-410W 访问控制错误漏洞 — n/a 6.5 - 2022-01-28
CVE-2021-40413 Reolink Rlc-410W 访问控制错误漏洞 — n/a 8.2 - 2022-01-28

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.