Weaknesses of type CWE-345

557 results

Verificação Insuficiente da Autenticidade de Dados

O software recebe dados de uma fonte externa (requisição HTTP, arquivo, API, mensagem) mas não valida adequadamente se eles realmente vêm de quem diz vir, ou se não foram alterados no caminho. Isso permite que um atacante falsifique ou modifique dados e o sistema os processe como legítimos, causando desde injeção de código até manipulação de lógica de negócio.

Example

Uma API de pagamento que recebe um JSON com status='pagamento confirmado' mas não verifica assinatura HMAC ou JWT. Um atacante intercepta a resposta, altera o status para 'aprovado' e envia de volta; o servidor processa como válido. Outro caso: um formulário que aceita um 'user_id' do cliente sem validar se aquele usuário é quem está fazendo a requisição.

How to mitigate

Use assinaturas criptográficas (HMAC-SHA256, RSA, ECDSA) ou tokens assinados (JWT) para dados críticos; valide origem com CORS e referer headers; nunca confie em dados do cliente sem verificação no servidor; implemente rate limiting e detecção de anomalias para detectar tentativas de manipulação em tempo real.

CVE-2021-36367HIGHPuTTY through 0.75 proceeds with establishing an SSH session even if it has never sent a substantive authentication response. This makes it EPSS 1.1%CVE-2024-39689HIGHCertifi removes GLOBALTRUST root certificateEPSS 1.0%CVE-2021-20267—A flaw was found in openstack-neutron's default Open vSwitch firewall rules. By sending carefully crafted packets, anyone in control of a seEPSS 1.0%CVE-2024-37968HIGHWindows DNS Spoofing VulnerabilityEPSS 1.0%CVE-2019-8921MEDIUMAn issue was discovered in bluetoothd in BlueZ through 5.48. The vulnerability lies in the handling of a SVC_ATTR_REQ by the SDP implementatEPSS 1.0%CVE-2017-13083MEDIUMAkeo Consulting Rufus prior to version 2.17.1187 does not adequately validate the integrity of updates downloaded over HTTP, allowing an attEPSS 1.0%CVE-2026-85430HIGHMOOS essential-moos through 10.0.1 pShare Unauthenticated UDP Datagram RepublishingEPSS 1.0%CVE-2015-3956—Hospira Plum A+ Infusion System version 13.4 and prior, Plum A+3 Infusion System version 13.6 and prior, and Symbiq Infusion System, versionEPSS 1.0%CVE-2021-21320LOWUser content sandbox can be confused into opening arbitrary documentsEPSS 0.9%CVE-2026-41432HIGHNew API: Stripe Webhook Signature Bypass via Empty Secret Enables Unlimited Quota FraudEPSS 0.9%CVE-2015-5236—It was discovered that the IcedTea-Web used codebase attribute of the <applet> tag on the HTML page that hosts Java applet in the Same OrigiEPSS 0.8%CVE-2026-62869HIGHAzure Entra ID Spoofing VulnerabilityEPSS 0.8%CVE-2025-43865HIGHReact Router allows pre-render data spoofing on React-Router framework modeEPSS 0.8%CVE-2021-20271—A flaw was found in RPM's signature check functionality when reading a package file. This flaw allows an attacker who can convince a victim EPSS 0.8%CVE-2024-38198HIGHWindows Print Spooler Elevation of Privilege VulnerabilityEPSS 0.8%CVE-2024-37370HIGHIn MIT Kerberos 5 (aka krb5) before 1.21.3, an attacker can modify the plaintext Extra Count field of a confidential GSS krb5 wrap token, caEPSS 0.7%CVE-2023-27748CRITICALBlackVue DR750-2CH LTE v.1.012_2022.10.26 does not employ authenticity check for uploaded firmware. This can allow attackers to upload craftEPSS 0.7%CVE-2019-18905MEDIUMDeprecated functionality in autoyast2 automatically imports gpg keys without checking themEPSS 0.7%CVE-2024-23601CRITICALA code injection vulnerability exists in the scan_lib.bin functionality of AutomationDirect P3-550E 1.2.10.9. A specially crafted scan_lib.bEPSS 0.7%CVE-2020-10137—Z-Wave devices based on Silicon Labs 700 series chipsets using S2 do not adequately authenticate or encrypt FIND_NODE_IN_RANGE frames, allowEPSS 0.7%