Weaknesses of type CWE-22

5,831 results

Traversal de diretório (path traversal)

A aplicação recebe um caminho de arquivo fornecido pelo usuário e o usa para acessar arquivos sem validar adequadamente se o resultado fica dentro do diretório permitido. Um atacante injeta sequências como '../' ou '..' para "escapar" do diretório esperado e acessar arquivos sensíveis do sistema.

Example

Um site permite download de arquivos do diretório /uploads passando o nome via URL: download.php?file=documento.pdf. Um atacante envia file=../../etc/passwd e consegue ler arquivos fora de /uploads, porque o código não neutraliza a sequência '..'.

How to mitigate

Valide e canonicalize todo caminho fornecido pelo usuário antes de usá-lo: implemente uma whitelist de nomes permitidos, normalize caminhos para sua forma canônica, verifique se o resultado está dentro do diretório esperado, e use APIs de segurança da linguagem (ex: Path.normalize() + validação de prefix em Java, pathlib em Python).

CVE-2017-16157—censorify.tanisjr is a simple web server and API RESTful service. censorify.tanisjr is vulnerable to a directory traversal issue, giving an EPSS 2.0%CVE-2017-16171—hcbserver is a static file server. hcbserver is vulnerable to a directory traversal issue, giving an attacker access to the filesystem by plEPSS 2.0%CVE-2017-16181—wintiwebdev is a static file server. wintiwebdev is vulnerable to a directory traversal issue, giving an attacker access to the filesystem bEPSS 2.0%CVE-2017-16192—getcityapi.yoehoehne is a web server. getcityapi.yoehoehne is vulnerable to a directory traversal issue, giving an attacker access to the fiEPSS 2.0%CVE-2017-16105—serverwzl is a simple http server. serverwzl is vulnerable to a directory traversal issue, giving an attacker access to the filesystem by plEPSS 2.0%CVE-2017-16189—sly07 is an API for censoring text. sly07 is vulnerable to a directory traversal issue, giving an attacker access to the filesystem by placiEPSS 2.0%CVE-2017-16103—serveryztyzt is a simple http server. serveryztyzt is vulnerable to a directory traversal issue, giving an attacker access to the filesystemEPSS 2.0%CVE-2017-16177—chatbyvista is a file server. chatbyvista is vulnerable to a directory traversal issue, giving an attacker access to the filesystem by placiEPSS 2.0%CVE-2017-16120—liyujing is a static file server. liyujing is vulnerable to a directory traversal issue, giving an attacker access to the filesystem by placEPSS 2.0%CVE-2017-16195—pytservce is a static file server. pytservce is vulnerable to a directory traversal issue, giving an attacker access to the filesystem by plEPSS 2.0%CVE-2017-16182—serverxxx is a static file server. serverxxx is vulnerable to a directory traversal issue, giving an attacker access to the filesystem by plEPSS 2.0%CVE-2017-16089—serverlyr is a simple http server. serverlyr is vulnerable to a directory traversal issue, giving an attacker access to the filesystem by plEPSS 2.0%CVE-2017-16037—`gomeplus-h5-proxy` is vulnerable to a directory traversal issue, allowing attackers to access any file in the system by placing '../' in thEPSS 2.0%CVE-2017-16149—zwserver is a weather web server. zwserver is vulnerable to a directory traversal issue, giving an attacker access to the filesystem by placEPSS 2.0%CVE-2026-71209HIGHaudiobookshelf - %2F Encoding Discrepancy Bypasses Cover/Image Auth Exemption Regex, Enabling Unauthenticated Path TraversalEPSS 2.0%CVE-2017-16143—commentapp.stetsonwood is an http server. commentapp.stetsonwood is vulnerable to a directory traversal issue, giving an attacker access to EPSS 2.0%CVE-2017-16102—serverhuwenhui is a simple http server. serverhuwenhui is vulnerable to a directory traversal issue, giving an attacker access to the filesyEPSS 2.0%CVE-2017-16142—infraserver is a RESTful server. infraserver is vulnerable to a directory traversal issue, giving an attacker access to the filesystem by plEPSS 2.0%CVE-2017-16184—scott-blanch-weather-app is a sample Node.js app using Express 4. scott-blanch-weather-app is vulnerable to a directory traversal issue, givEPSS 2.0%CVE-2017-16106—tmock is a static file server. tmock is vulnerable to a directory traversal issue, giving an attacker access to the filesystem by placing ".EPSS 2.0%