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Path Normalization

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Architect's Tech Stack

Jun 2, 2021 · Backend Development

Spring Boot %2e Path Normalization Trick and Authentication Bypass in Versions ≤2.3.0.RELEASE

The article explains how Spring Boot versions up to 2.3.0.RELEASE normalize request paths—including decoding %2e and handling directory traversal—which can be exploited to bypass authentication, and shows the code differences that cause this behavior in newer releases.

Authentication BypassInterceptorJava

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Spring Boot %2e Path Normalization Trick and Authentication Bypass in Versions ≤2.3.0.RELEASE

Laravel Tech Community

Jul 30, 2020 · Backend Development

PHP realpath() Function: Description, Parameters, Return Value, and Examples

This article explains PHP's realpath() function, detailing its purpose of returning a normalized absolute pathname, describing its parameters and return values, and providing two practical code examples that demonstrate path resolution on Unix and Windows systems.

BackendPath Normalizationfilesystem

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PHP realpath() Function: Description, Parameters, Return Value, and Examples