cwe-732-improper-file-permissions

Remediate CWE-732 Java vulnerabilities by enforcing owner-only file permissions.

3|1|Updated Mar 6, 2026

Search Tags:#security #remediation #java #sast #file permissions #cwe-732

Ready to run

npx skills add https://github.com/DevelopersCoffee/java-cwe-security-skills --skill cwe-732-improper-file-permissions

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: cwe-732-improper-file-permissions
Source: https://github.com/DevelopersCoffee/java-cwe-security-skills/tree/main/cwe-732-improper-file-permissions
Command: npx skills add https://github.com/DevelopersCoffee/java-cwe-security-skills --skill cwe-732-improper-file-permissions

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill addresses the critical security vulnerability of Improper File Permissions in Java applications, ensuring sensitive files and directories are not accessible beyond authorized users.

Core Features & Use Cases

Vulnerability Identification: Detects patterns of overly permissive file operations (e.g., world-readable/writable, 777 permissions).
Deterministic Remediation: Provides exact, secure code implementations using Java's java.nio.file API to set owner-only permissions (600 for files, 700 for directories).
Use Case: When a SAST tool flags a Java application for CWE-732, this Skill can be used to automatically refactor the vulnerable code sections to enforce strict, owner-only file access controls.

Quick Start

Use the cwe-732-improper-file-permissions skill to secure the file permissions for '/app/config/secrets.conf'.

Frequently Asked Questions about cwe-732-improper-file-permissions

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

How do I fix CWE-732 improper file permissions flagged by a SAST tool in Java?▼

Fix CWE-732 improper file permissions by refactoring vulnerable Java code to use the `java.nio.file` API and `PosixFilePermission` to enforce strict owner-only read, write, and execute access controls for sensitive files.

What is the best way to set secure owner-only file permissions in Java?▼

The best way to set secure owner-only file permissions in Java is using the `java.nio.file.attribute.PosixFilePermission` API to enforce 600 permissions for files and 700 for directories, preventing unauthorized world-readable or writable access.

How do I prevent overly permissive world-readable file operations in Java applications?▼

Prevent overly permissive world-readable file operations in Java by detecting vulnerable patterns and applying deterministic remediation with `java.nio.file` to restrict access strictly to the file owner.

Does this remediation approach work with standard Java NIO file permission APIs?▼

Yes, this remediation approach works directly with standard Java NIO file permission APIs, specifically requiring `java.nio.file` and `java.nio.file.attribute.PosixFilePermission` to establish secure file system operations.

When do I need to enforce PosixFilePermission for Java file system operations?▼

You need to enforce `PosixFilePermission` for Java file system operations when a security review identifies overly permissive access controls, such as 777 permissions, that leave sensitive configuration files and directories accessible to unauthorized users.