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The CVE-2025-XXXX vulnerability in Electron allows attackers to bypass ASAR integrity checks by simply modifying the contents of ASAR files. This affects applications that have both `embeddedAsarIntegrityValidation` and `onlyLoadAppFromAsar` fuses enabled. The exploit works by altering the ASAR file contents on a filesystem where the attacker has write access (e.g., Windows systems). Since ASAR files are used to package application resources, tampering can lead to arbitrary code execution. The issue stems from insufficient validation when loading modified ASAR files, allowing attackers to inject malicious payloads.
DailyCVE Form:
Platform: Electron
Version: 30.0.0-alpha.1 – 30.0.4, 31.0.0-alpha.1 – 31.0.0-beta.1
Vulnerability: ASAR Integrity Bypass
Severity: Critical
Date: Jul 1, 2025
Prediction: Patch expected by Jul 10, 2025
What Undercode Say:
Check Electron version electron --version Verify ASAR integrity npm audit --production Patch command npm update [email protected]
How Exploit:
- Attacker modifies ASAR file contents.
- Bypasses integrity checks on Windows.
- Triggers malicious payload execution.
Protection from this CVE:
- Update to Electron 30.0.5 or 31.0.0-beta.1.
- Disable write access to app directories.
- Enable strict filesystem permissions.
Impact:
- Arbitrary code execution.
- Compromised app security.
- Windows-specific exploitation.
Sources:
Reported By: github.com
Extra Source Hub:
Undercode
