Fallos del tipo CWE-287

2803 resultados

Autenticação inadequada ou ausente

A aplicação não valida ou valida de forma insuficiente a identidade de quem tenta acessá-la. Quando um usuário diz ser quem é, o sistema acredita sem verificar corretamente, permitindo que atacantes se façam passar por outros usuários ou contas legítimas.

Ejemplo

Um sistema que aceita login apenas com nome de usuário, sem senha. Ou uma API que confia no header 'User-ID' enviado pelo cliente sem validar se aquele usuário realmente existe ou tem sessão ativa. Um atacante simplesmente altera o header e acessa dados de outra conta.

Cómo mitigar

Implemente autenticação robusta: exija múltiplos fatores (senha forte + MFA), valide credenciais contra base de dados segura, use sessões com token assinado e com expiração, nunca confie em dados enviados pelo cliente como prova de identidade. Revise regularmente logs de acesso para detectar abusos.

CVE-2021-43444HIGHONLYOFFICE all versions as of 2021-11-08 is affected by Incorrect Access Control. Signed document download URLs can be forged due to a weak EPSS 1.2%CVE-2023-24831CRITICALApache IoTDB grafana-connector Login Bypass VulnerabilityEPSS 1.2%CVE-2023-6248CRITICALData leakage and arbitrary remote code execution in Syrus cloud devicesEPSS 1.2%CVE-2022-44244MEDIUMAn authentication bypass in Lin-CMS v0.2.1 allows attackers to escalate privileges to Super Administrator.EPSS 1.2%CVE-2023-6483CRITICALImproper Authentication Vulnerability in ADiTaaS EPSS 1.2%CVE-2023-43809HIGHSoft Serve Public Key Authentication Bypass Vulnerability when Keyboard-Interactive SSH Authentication is EnabledEPSS 1.2%CVE-2024-49076HIGHWindows Virtualization-Based Security (VBS) Enclave Elevation of Privilege VulnerabilityEPSS 1.2%CVE-2023-4562CRITICALInformation Disclosure, Information Tampering and Authentication Bypass Vulnerability in MELSEC-F Series main moduleEPSS 1.2%CVE-2019-6527—PR100088 Modbus gateway versions prior to Release R02 (or Software Version 1.1.13166) may allow an attacker to be able to change the passworEPSS 1.2%CVE-2022-2133—OAuth Single Sign On < 6.22.6 - Authentication BypassEPSS 1.2%CVE-2025-7862MEDIUMTOTOLINK T6 Telnet Service cstecgi.cgi setTelnetCfg missing authenticationEPSS 1.2%CVE-2021-41312HIGHAffected versions of Atlassian Jira Server and Data Center allow a remote attacker who has had their access revoked from Jira Service ManageEPSS 1.2%CVE-2020-24675CRITICALWeak Authentication in Symphony PlusEPSS 1.2%CVE-2023-6907MEDIUMcodelyfe Stupid Simple CMS Deletion Interface delete.php improper authenticationEPSS 1.2%CVE-2022-2765MEDIUMSourceCodester Company Website CMS settings improper authenticationEPSS 1.2%CVE-2021-22796—A CWE-287: Improper Authentication vulnerability exists that could allow remote code execution when a malicious file is uploaded. Affected PEPSS 1.2%CVE-2020-15243CRITICALWebApi Authentication attribute missing in SmartstoreEPSS 1.2%CVE-2025-49831CRITICALConjur OSS and Secrets Manager, Self-Hosted (formerly Conjur Enterprise) vulnerable to IAM Authenticator Bypass via Mis-configured Network DeviceEPSS 1.2%CVE-2022-39387CRITICALXWiki OIDC Authenticator vulnerable to OpenID login bypass due to improper authentication EPSS 1.2%CVE-2025-30430CRITICALThis issue was addressed through improved state management. This issue is fixed in iOS 18.4 and iPadOS 18.4, macOS Sequoia 15.4, visionOS 2.EPSS 1.2%