Falhas do tipo CWE-306

3.055 resultados

Falta de autenticação em funcionalidades críticas

O software não valida a identidade do usuário antes de executar operações sensíveis ou que consomem recursos significativos (processamento, armazenamento, banda). Qualquer pessoa, autenticada ou não, consegue acessar e usar essas funcionalidades, criando risco de abuso, consumo não autorizado de recursos ou acesso a dados protegidos.

Exemplo

Uma API de relatórios que permite gerar análises pesadas sem verificar credenciais, permitindo um atacante disparar gerações de relatório em loop para derrubar o servidor. Ou um endpoint de backup que qualquer pessoa consegue chamar sem login, expondo dados sensíveis.

Como mitigar

Implemente verificação obrigatória de identidade (autenticação) em toda funcionalidade sensível ou cara computacionalmente. Use controles de sessão, tokens JWT ou OAuth, e combine com autorização (verificar se o usuário autenticado tem permissão específica para aquela ação).

CVE-2019-18230—Honeywell equIP and Performance series IP cameras, multiple versions, A vulnerability exists where the affected product allows unauthenticatEPSS 1.1%CVE-2023-27747HIGHBlackVue DR750-2CH LTE v.1.012_2022.10.26 does not employ authentication in its web server. This vulnerability allows attackers to access seEPSS 1.1%CVE-2025-3699CRITICALMissing Authentication for Critical Function vulnerability in Mitsubishi Electric Corporation G-50 all versions, G-50-W all versions, G-50A EPSS 1.1%CVE-2022-30230CRITICALA vulnerability has been identified in SICAM GridEdge (Classic) (All versions < V2.6.6). The affected application does not require authenticEPSS 1.1%CVE-2023-36851MEDIUMJunos OS: SRX Series: A vulnerability in J-Web allows an unauthenticated attacker to upload and download arbitrary filesEPSS 1.1%KEVCVE-2025-4268MEDIUMTOTOLINK A720R cstecgi.cgi missing authenticationEPSS 1.1%CVE-2026-86121CRITICALCua computer-server before 0.3.42 Unauthenticated RCE via Desktop ControlEPSS 1.1%CVE-2025-34130HIGHLILIN DVR Arbitrary File Read via net_html.cgiEPSS 1.1%CVE-2024-39273CRITICALA firmware update vulnerability exists in the fw_check.sh functionality of Wavlink AC3000 M33A8.V5030.210505. A specially crafted HTTP requeEPSS 1.1%CVE-2025-26342CRITICALA CWE-306 "Missing Authentication for Critical Function" in maxprofile/accounts/routes.lua in Q-Free MaxTime less than or equal to version 2EPSS 1.1%CVE-2025-26344CRITICALA CWE-306 "Missing Authentication for Critical Function" in maxprofile/guest-mode/routes.lua in Q-Free MaxTime less than or equal to versionEPSS 1.1%CVE-2025-26345CRITICALA CWE-306 "Missing Authentication for Critical Function" in maxprofile/menu/routes.lua in Q-Free MaxTime less than or equal to version 2.11.EPSS 1.1%CVE-2025-26347CRITICALA CWE-306 "Missing Authentication for Critical Function" in maxprofile/menu/routes.lua in Q-Free MaxTime less than or equal to version 2.11.EPSS 1.1%CVE-2025-26339CRITICALA CWE-306 "Missing Authentication for Critical Function" in maxtime/handleRoute.lua in Q-Free MaxTime less than or equal to version 2.11.0 aEPSS 1.1%CVE-2025-26341CRITICALA CWE-306 "Missing Authentication for Critical Function" in maxprofile/accounts/routes.lua in Q-Free MaxTime less than or equal to version 2EPSS 1.1%CVE-2021-20998CRITICALWAGO: Managed Switches: Unauthorized creation of user accountsEPSS 1.1%CVE-2022-41272CRITICALAn unauthenticated attacker over the network can attach to an open interface exposed through JNDI by the User Defined Search (UDS) of SAP NeEPSS 1.1%CVE-2026-72776CRITICALAgenticSeek Unauthenticated RCE via /query API EndpointEPSS 1.1%CVE-2026-69111HIGHMilvus 2.6.22, 3.0.0 Unauthenticated Denial of Service via /management/stopEPSS 1.1%CVE-2023-23452CRITICALMissing Authentication for Critical Function in SICK FX0-GPNT v3 Firmware Version V3.04 and V3.05 allows an unprivileged remote attacker to EPSS 1.1%