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CWE-306 (关键功能的认证机制缺失) — Vulnerability Class 1920

1920 vulnerabilities classified as CWE-306 (关键功能的认证机制缺失). AI Chinese analysis included.

CWE-306 represents a critical authentication weakness where software fails to verify user identity before executing sensitive operations or consuming substantial resources. Attackers typically exploit this vulnerability by directly invoking administrative endpoints, initiating high-cost processes, or accessing restricted data without valid credentials, effectively bypassing security controls. This oversight allows unauthorized users to perform actions intended only for authenticated individuals, leading to privilege escalation, data breaches, or denial of service through resource exhaustion. To mitigate this risk, developers must implement robust access control mechanisms that strictly enforce authentication checks on all critical functions. This involves integrating secure session management, validating tokens for every request, and applying the principle of least privilege to ensure that only verified users with appropriate permissions can trigger sensitive operations or consume significant system resources.

MITRE CWE Description
The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.
Common Consequences (1)
Access Control, Other Gain Privileges or Assume Identity, Varies by Context
Exposing critical functionality essentially provides an attacker with the privilege level of that functionality. The consequences will depend on the associated functionality, but they can range from reading or modifying sensitive data, accessing administrative or other privileged functionality, or p…
Mitigations (5)
Architecture and Design Divide the software into anonymous, normal, privileged, and administrative areas. Identify which of these areas require a proven user identity, and use a centralized authentication capability. Identify all potential communication channels, or other means of interaction with the software, to ensure that all channels are appropriately protected, including those channels that are assumed to be access…
Architecture and Design For any security checks that are performed on the client side, ensure that these checks are duplicated on the server side, in order to avoid CWE-602. Attackers can bypass the client-side checks by modifying values after the checks have been performed, or by changing the client to remove the client-side checks entirely. Then, these modified values would be submitted to the server.
Architecture and Design Where possible, avoid implementing custom, "grow-your-own" authentication routines and consider using authentication capabilities as provided by the surrounding framework, operating system, or environment. These capabilities may avoid common weaknesses that are unique to authentication; support automatic auditing and tracking; and make it easier to provide a clear separation between authentication…
Architecture and Design Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid. For example, consider using libraries with authentication capabilities such as OpenSSL or the ESAPI Authenticator [REF-45].
Implementation, System Configuration, Operation When storing data in the cloud (e.g., S3 buckets, Azure blobs, Google Cloud Storage, etc.), use the provider's controls to require strong authentication for users who should be allowed to access the data [REF-1297] [REF-1298] [REF-1302].
Examples (2)
In the following Java example the method createBankAccount is used to create a BankAccount object for a bank management application.
public BankAccount createBankAccount(String accountNumber, String accountType, String accountName, String accountSSN, double balance) { BankAccount account = new BankAccount(); account.setAccountNumber(accountNumber); account.setAccountType(accountType); account.setAccountOwnerName(accountName); account.setAccountOwnerSSN(accountSSN); account.setBalance(balance); return account; }
Bad · Java
private boolean isUserAuthentic = false; // authenticate user, // if user is authenticated then set variable to true // otherwise set variable to false public boolean authenticateUser(String username, String password) { ... } public BankAccount createNewBankAccount(String accountNumber, String accountType, String accountName, String accountSSN, double balance) { BankAccount account = null; if (isUserAuthentic) { account = new BankAccount(); account.setAccountNumber(accountNumber); account.setAccountType(accountType); account.setAccountOwnerName(accountName); account.setAccountOwnerSSN(accountS
Good · Java
In 2022, the OT:ICEFALL study examined products by 10 different Operational Technology (OT) vendors. The researchers reported 56 vulnerabilities and said that the products were "insecure by design" [REF-1283]. If exploited, these vulnerabilities often allowed adversaries to change how the products operated, ranging from denial of service to changing the code that the products executed. Since these…
CVE ID Title CVSS Severity Published
CVE-2025-5719 Vivo wallet 安全漏洞 — Wallet 9.1AI Critical AI 2025-06-06
CVE-2025-47272 PhoenixCart Vulnerable to Account Deletion Without Password Confirmation — PhoenixCart 5.5 Medium 2025-06-02
CVE-2025-1907 Instantel Micromate Missing Authentication for Critical Function — Micromate 9.8 Critical 2025-05-29
CVE-2025-22252 Fortinet FortiOS 访问控制错误漏洞 — FortiProxy 9.0 Critical 2025-05-28
CVE-2025-32440 NetAlertX Vulnerable to Authentication Bypass — NetAlertX 10.0 Critical 2025-05-27
CVE-2025-41651 Weidmueller: Missing Authentication Vulnerability in Industrial Ethernet Switches — IE-SW-VL05M-5TX 9.8 Critical 2025-05-27
CVE-2025-2407 Missing Authentication & Authorization in Web-API allows adversary unrestricted access — AMX MTAPI 9.4AI Critical AI 2025-05-27
CVE-2025-48742 SIGB PMB 访问控制错误漏洞 — PMB 5.4 Medium 2025-05-27
CVE-2025-40664 Missing authentication vulnerability in TCMAN GIM v11 — GIM 9.8AI Critical AI 2025-05-26
CVE-2025-41655 PEPPERL+FUCHS: Attacker can cause a DoS via URL — Profinet Gateway FB8122A.1.EL 7.5 High 2025-05-26
CVE-2025-41654 PEPPERL+FUCHS: Profinet Gateway LB8122A.1.EL – Device is affected by information disclosure via the SNMP protocol — Profinet Gateway FB8122A.1.EL 8.2 High 2025-05-26
CVE-2025-36535 AutomationDirect MB-Gateway Missing Authentication for Critical Function — MB-Gateway 10.0 Critical 2025-05-21
CVE-2025-27803 Missing Authentication in eCharge Hardy Barth cPH2 / cPP2 charging stations — cPH2 / cPP2 charging stations 9.8AI Critical AI 2025-05-21
CVE-2025-47850 JetBrains YouTrack 访问控制错误漏洞 — YouTrack 4.3 Medium 2025-05-20
CVE-2025-48391 JetBrains YouTrack 访问控制错误漏洞 — YouTrack 7.7 High 2025-05-20
CVE-2025-32738 I-O Data HDL-T 访问控制错误漏洞 — HDL-TC1 5.3 Medium 2025-05-15
CVE-2025-0132 Cortex XDR Broker VM: Unauthenticated User Can Disable Internal Services — Cortex XDR Broker VM 5.3AI Medium AI 2025-05-14
CVE-2024-23815 Siemens Desigo CC 访问控制错误漏洞 — Desigo CC 7.5 High 2025-05-13
CVE-2024-46506 NetAlertX 安全漏洞 — NetAlertX 10.0 Critical 2025-05-13
CVE-2025-4560 Netvision ISOinsight - Missing Authentication — ISOinsight 6.5 Medium 2025-05-12
CVE-2025-4557 ZONG YU Parking Management System - Missing Authentication — Parking Management System 9.1 Critical 2025-05-12
CVE-2025-4555 ZONG YU Okcat Parking Management Platform - Missing Authentication — Okcat Parking Management Platform 9.8 Critical 2025-05-12
CVE-2025-4382 Grub2: grub allow access to encrypted device through cli once root device is unlocked via tpm 5.9 Medium 2025-05-09
CVE-2025-3759 Missing Authentication for Changing Device Configuration in WF2220 — WF2220 9.8AI Critical AI 2025-05-08
CVE-2025-3758 Exposure of Device Configuration without Authentication in WF2220 — WF2220 7.5AI High AI 2025-05-08
CVE-2025-20210 Cisco Catalyst Center Unprotected API Endpoint — Cisco Digital Network Architecture Center (DNA Center) 7.3 High 2025-05-07
CVE-2025-4268 TOTOLINK A720R cstecgi.cgi missing authentication — A720R 5.3 Medium 2025-05-05
CVE-2025-1495 IBM Business Automation Workflow missing authentication — IBM Business Automation Workflow 4.3 Medium 2025-05-03
CVE-2025-4019 20120630 Novel-Plus GeneratorController.java genCode missing authentication — Novel-Plus 7.3 High 2025-04-28
CVE-2025-4018 20120630 Novel-Plus CrawlController.java addCrawlSource missing authentication — Novel-Plus 5.3 Medium 2025-04-28

Vulnerabilities classified as CWE-306 (关键功能的认证机制缺失) represent 1920 CVEs. The CWE taxonomy describes the weakness; review individual CVEs for product-specific impact.