Path Traversal in RuoYi Code Generator

Executive Summary

This vulnerability is a path traversal flaw in the RuoYi framework up to version 4.8.3. It exists in the VelocityUtils.getFileName function where manipulating the className argument allows an attacker to access files outside intended directories. The attack can be executed remotely.

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Detection Guidance

Detecting this vulnerability requires checking for path traversal attempts in the VelocityUtils.getFileName function of RuoYi up to version 4.8.3. Monitor logs for unusual file access patterns or requests containing path traversal sequences like '../' in the className argument. Inspect network traffic for suspicious input to the Code Generator component.

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Impact Analysis

An attacker could read sensitive files on the server, including configuration files, source code, or other restricted data. This may lead to further attacks like privilege escalation or data theft depending on the exposed files.

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Compliance Impact

The vulnerability allows path traversal via manipulation of the className argument in VelocityUtils.getFileName, which could lead to unauthorized file access or manipulation. This may violate data protection requirements under GDPR (e.g., unauthorized access to personal data) and HIPAA (e.g., unauthorized access to protected health information).

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Mitigation Strategies

Upgrade RuoYi to a version beyond 4.8.3 where the vulnerability is patched. If upgrading is not possible, restrict access to the Code Generator component and monitor for unusual file access patterns.

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