Falhas do tipo CWE-611

646 resultados

Injeção de Entidade Externa XML (XXE)

Ocorre quando a aplicação parseia XML sem desabilitar o processamento de entidades externas, permitindo que um atacante injete referências a arquivos locais, servidores internos ou execute ataques de negação de serviço. O risco é crítico: vazamento de dados sensíveis, acesso a sistemas internos ou consumo excessivo de recursos.

Exemplo

Uma API que aceita XML em uma requisição POST parse o conteúdo diretamente com a biblioteca padrão. Um atacante envia um payload como `<!DOCTYPE foo [<!ENTITY xxe SYSTEM "file:///etc/passwd">]>` e consegue ler arquivos do servidor.

Como mitigar

Desabilite explicitamente o processamento de entidades externas na configuração do parser XML (ex: `XMLConstants.ACCESS_EXTERNAL_DTD` em Java, `resolve_external_entities = False` em Python). Valide e sanitize entrada XML antes do parse, prefira APIs mais seguras ou formatos como JSON quando possível.

CVE-2023-40506HIGHLG Simple Editor copyContent XML External Entity Processing Information Disclosure VulnerabilityEPSS 1.4%CVE-2023-40503HIGHLG Simple Editor saveXmlFile XML External Entity Processing Information Disclosure VulnerabilityEPSS 1.4%CVE-2018-17247—Elasticsearch Security versions 6.5.0 and 6.5.1 contain an XXE flaw in Machine Learning's find_file_structure API. If a policy allowing exteEPSS 1.4%CVE-2023-25926MEDIUMIBM Security Guardium Key Lifecycle Manager XML external entity injectionEPSS 1.4%CVE-2022-22486CRITICALIBM Tivoli Workload Scheduler XML external entity injectionEPSS 1.4%CVE-2021-3869HIGHImproper Restriction of XML External Entity Reference in stanfordnlp/corenlpEPSS 1.4%CVE-2023-27874CRITICALIBM Aspera Faspex XML external entity injectionEPSS 1.3%CVE-2020-15232CRITICALXML External Entity attack in mapfish-printEPSS 1.3%CVE-2023-39472MEDIUMInductive Automation Ignition SimpleXMLReader XML External Entity Processing Information Disclosure VulnerabilityEPSS 1.3%CVE-2023-24429CRITICALJenkins Semantic Versioning Plugin 1.14 and earlier does not restrict execution of an controller/agent message to agents, and implements no EPSS 1.3%CVE-2019-15983MEDIUMCisco Data Center Network Manager XML External Entity Read Access VulnerabilityEPSS 1.3%CVE-2021-40500—SAP BusinessObjects Business Intelligence Platform (Crystal Reports) - versions 420, 430, allows an unauthenticated attacker to exploit missEPSS 1.3%CVE-2023-49733—Apache Cocoon's StreamGenerator is vulnerable to XXE injectionEPSS 1.3%CVE-2025-2905CRITICALAn XML External Entity (XXE) vulnerability in Multiple WSO2 ProductsEPSS 1.3%CVE-2020-9044HIGHMetasys Improper Restriction of XML External Entity ReferenceEPSS 1.3%CVE-2022-38389HIGHIBM Tivoli Workload Scheduler XML external entity injectionEPSS 1.3%CVE-2020-3405MEDIUMCisco SD-WAN vManage Software XML External Entity VulnerabilityEPSS 1.3%CVE-2023-24430CRITICALJenkins Semantic Versioning Plugin 1.14 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks.EPSS 1.3%CVE-2022-23640CRITICALImproper Restriction of XML External Entity Reference in Excel-Streaming-ReaderEPSS 1.3%CVE-2021-22140—Elastic App Search versions after 7.11.0 and before 7.12.0 contain an XML External Entity Injection issue (XXE) in the App Search web crawleEPSS 1.3%