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CWE-306 (关键功能的认证机制缺失) — Vulnerability Class 1119

1119 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, OtherGain 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 DesignDivide 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 DesignFor 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 DesignWhere 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 DesignUse 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, OperationWhen 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 IDTitleCVSSSeverityPublished
CVE-2026-3207 TIBCO BPM Enterprise Remote Code Execution (RCE) Vulnerability — TIBCO BPM Enterprise 9.8AICriticalAI2026-03-17
CVE-2026-32297 Angeet ES3 KVM unauthenticated arbitrary file write — ES3 KVM 7.5 High2026-03-17
CVE-2026-32296 Sipeed NanoKVM unauthenticated Wi-Fi configuration endpoint — NanoKVM 8.2 High2026-03-17
CVE-2026-32291 GL-iNet Comet (GL-RM1) KVM unauthenticated root access via UART serial console — Comet KVM 6.8 Medium2026-03-17
CVE-2026-4312 DrangSoft|GCB/FCB Audit Software - Missing Authentication — GCB/FCB Audit Software 9.8 Critical2026-03-17
CVE-2017-20222 Telesquare SKT LTE Router SDT-CS3B1 Unauthenticated Remote Reboot — SDT-CS3B1 7.5 High2026-03-16
CVE-2026-4187 Tiandy Easy7 Integrated Management Platform Device Identifier UpdateLocalDevInfo.jsp missing authentication — Easy7 Integrated Management Platform 5.3 Medium2026-03-15
CVE-2017-20220 Serviio PRO 1.8 Unauthenticated Password Change via REST API — Serviio PRO 7.5 High2026-03-15
CVE-2017-20217 Serviio PRO 1.8 REST API Information Disclosure — Serviio PRO 7.5 High2026-03-15
CVE-2026-2491 Socomec DIRIS A-40 HTTP API Authentication Bypass Vulnerability — DIRIS A-40 8.8AIHighAI2026-03-13
CVE-2026-3558 Philips Hue Bridge HomeKit Accessory Protocol Transient Pairing Mode Authentication Bypass Vulnerability — Hue Bridge 8.8AIHighAI2026-03-13
CVE-2026-32594 Parse Server GraphQL WebSocket endpoint bypasses security middleware — parse-server 9.1AICriticalAI2026-03-13
CVE-2026-31944 LibreChat MCP OAuth callback does not validate browser session — allows token theft via redirect link — LibreChat 7.6 High2026-03-13
CVE-2026-31882 Dagu SSE Authentication Bypass in Basic Auth Mode — dagu 7.5 High2026-03-13
CVE-2025-13779 Configuration Data Spill — AWIN GW100 rev.2 8.3 High2026-03-13
CVE-2025-13778 Device Reboot Control — AWIN GW100 rev.2 6.5 Medium2026-03-13
CVE-2025-15515 Vivo EasyShare 安全漏洞 — Easyshare 4.7 -2026-03-13
CVE-2026-22192 Voltronic Power SNMP Web Pro 1.1 Authentication Bypass via localStorage — SNMP Web Pro 9.9 Critical2026-03-13
CVE-2026-3611 Honeywell IQ4x BMS Controller Missing authentication for critical function — IQ4E 10.0 Critical2026-03-12
CVE-2026-32231 ZeptoClaw: Generic webhook channel trusts caller-supplied identity fields; allowlist is checked against untrusted payload data — zeptoclaw 8.2 High2026-03-12
CVE-2026-31881 Runtipi unauthenticated /api/auth/reset-password allows operator account takeover during active reset window — runtipi 7.7 High2026-03-11
CVE-2019-25483 Comtrend AR-5310 GE31-412SSG-C01_R10.A2pG039u.d24k Restricted Shell Escape — AR-5310 8.4 High2026-03-11
CVE-2026-23662 Azure IoT Explorer Information Disclosure Vulnerability — Azure IoT Explorer 7.5 High2026-03-10
CVE-2026-2339 RCE in TUBITAK BILGEM's Liderahenk — Liderahenk 7.5 High2026-03-10
CVE-2026-1919 Booktics <= 1.0.16 - Missing Authorization to Get Items via REST API endpoints — Booktics – Booking Calendar for Appointments and Service Businesses 5.3 Medium2026-03-10
CVE-2026-1920 Booktics <= 1.0.16 - Missing Authorization to Addon Plugin Installation — Booktics – Booking Calendar for Appointments and Service Businesses 5.3 Medium2026-03-10
CVE-2026-30885 WWBN AVideo - Unauthenticated IDOR - Playlist Information Disclosure — AVideo 5.3AIMediumAI2026-03-09
CVE-2026-30824 Flowise: Missing Authentication on NVIDIA NIM Endpoints — Flowise 10.0 -2026-03-07
CVE-2026-25071 XikeStor SKS8310-8X switch_config.src Missing Authentication — XikeStor SKS8310-8X 5.3 -2026-03-07
CVE-2026-30846 Wekan Exposes All Global Webhook Integrations through globalwebhooks Publication — Wekan 7.5 -2026-03-06

Vulnerabilities classified as CWE-306 (关键功能的认证机制缺失) represent 1119 CVEs. The CWE taxonomy describes the weakness; review individual CVEs for product-specific impact.