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Lab: File path traversal, validation of file extension with null byte bypass

PRACTITIONER

This lab contains a file path traversal vulnerability in the display of product images.

The application validates that the supplied filename ends with the expected file extension.

To solve the lab, retrieve the contents of the /etc/passwd file.

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All topics

SQL injection XSS CSRF Clickjacking DOM-based CORS XXE SSRF Request smuggling Command injection Server-side template injection Insecure deserialization Directory traversal Access control Authentication OAuth authentication Business logic vulnerabilities Web cache poisoning HTTP Host header attacks WebSockets Information disclosure File upload vulnerabilities JWT attacks Essential skills Prototype pollution
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