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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-2019-11896 Incorrect pviilege assignment in the 3rd party pairing mechanism of the Bosch Smart Home Controller (SHC) — Smart Home Controller 7.1 - 2019-05-29
CVE-2019-11895 Improper access control in the JSON-RPC interface of the Bosch Smart Home Controller (SHC) — Smart Home Controller 4.8 - 2019-05-29
CVE-2019-11894 Improper access control in the backup mechanism of the Bosch Smart Home Controller (SHC) — Smart Home Controller 6.5 - 2019-05-29
CVE-2019-11892 Improper access control in the JSON-RPC interface of the Bosch Smart Home Controller (SHC) — Smart Home Controller 8.0 - 2019-05-29
CVE-2019-1649 Cisco Secure Boot Hardware Tampering Vulnerability — Cisco Routers 6.7 - 2019-05-13
CVE-2019-3566 Facebook WhatsApp for Android 信息泄露漏洞 — WhatsApp for Android 6.5 - 2019-05-10
CVE-2019-6566 GE Communicator 访问控制错误漏洞 — GE Communicator 8.8 - 2019-05-09
CVE-2019-6544 GE Communicator 访问控制错误漏洞 — GE Communicator 7.0 - 2019-05-09
CVE-2019-5014 Winco Fireworks FireFly FW-1007 访问控制错误漏洞 — Winco Firefly 6.5 - 2019-05-08
CVE-2019-1695 Cisco Adaptive Security Appliance and Firepower Threat Defense Software Layer 2 Filtering Bypass Vulnerability — Cisco Adaptive Security Appliance (ASA) Software 6.5 - 2019-05-03
CVE-2019-3936 Crestron Electronics AM-100和Crestron Electronics AM-101 输入验证错误漏洞 — Crestron AirMedia 7.5 - 2019-04-30
CVE-2019-3935 Crestron AM-101 安全漏洞 — Crestron AirMedia 6.5 - 2019-04-30
CVE-2019-3934 Crestron Electronics AM-100和Crestron Electronics AM-101 访问控制错误漏洞 — Crestron AirMedia 5.3 - 2019-04-30
CVE-2019-3933 Crestron Electronics AM-100和Crestron Electronics AM-101 访问控制错误漏洞 — Crestron AirMedia 5.3 - 2019-04-30
CVE-2019-3928 Crestron Electronics AM-101 安全漏洞 — Crestron AirMedia 6.5 - 2019-04-30
CVE-2019-3927 Crestron Electronics AM-100和Crestron Electronics AM-101 授权问题漏洞 — Crestron AirMedia 9.8 - 2019-04-30
CVE-2019-10950 多款Fujifilm产品访问控制错误漏洞 — Fujifilm FCR Capsula X/ Carbon X 9.8 - 2019-04-30
CVE-2019-7476 SonicWall Global Management System 加密问题漏洞 — Global Management System (GMS) 8.1 - 2019-04-26
CVE-2019-1805 Cisco Wireless LAN Controller Secure Shell Unauthorized Access Vulnerability — Cisco Wireless LAN Controller (WLC) 7.6 - 2019-04-18
CVE-2019-1686 Cisco ASR 9000 Series Aggregation Services Routers ACL Bypass Vulnerability — Cisco IOS XR Software 8.6 - 2019-04-17
CVE-2019-3845 Red Hat Satellite 安全漏洞 — qpid-dispatch-router 8.8 - 2019-04-11
CVE-2019-0041 Junos OS: EX4300-MP Series: IP transit traffic can reach the control plane via loopback interface. — Junos OS 8.6 - 2019-04-10
CVE-2019-0036 Junos OS: Firewall filter terms named "internal-1" and "internal-2" being ignored — Junos OS 9.8 - 2019-04-10
CVE-2019-6140 Forcepoint Email Security 权限许可和访问控制问题漏洞 — Forcepoint Email Security 9.8 - 2019-04-09
CVE-2019-8456 Check Point Software Technologies IKEv2 IPsec VPN 权限许可和访问控制问题漏洞 — Check Point IPsec VPN 5.9 - 2019-04-09
CVE-2018-15631 Odoo 访问控制错误漏洞 — Odoo Community - - 2019-04-09
CVE-2018-15640 Odoo 访问控制错误漏洞 — Odoo Enterprise 8.8 - 2019-04-09
CVE-2017-7912 Hanwha Techwin SRN-4000 授权问题漏洞 — SRN-4000 9.8 - 2019-04-08
CVE-2019-6554 Advantech WebAccess/SCADA 访问控制错误漏洞 — WebAccess/SCADA 7.5 - 2019-04-05
CVE-2019-7475 SonicWall SonicOS 访问控制错误漏洞 — SonicOS 9.4 - 2019-04-02

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.