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CVE-2024-27303

7.3 · HIGH

electron-builder is a solution to package and build a ready for distribution Electron, Proton Native app for macOS, Windows and Linux.

Published Mar 6, 2024CWE-426EPSS 0.28%

Overview

CVE-2024-27303 is a high-severity vulnerability. It was published on March 6, 2024 and has a CVSS 3.1 base score of 7.3 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.3, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

electron-builder is a solution to package and build a ready for distribution Electron, Proton Native app for macOS, Windows and Linux. A vulnerability that only affects eletron-builder prior to 24.13.2 in Windows, the NSIS installer makes a system call to open cmd.exe via NSExec in the `.nsh` installer script. NSExec by default searches the current directory of where the installer is located before searching `PATH`. This means that if an attacker can place a malicious executable file named cmd.exe in the same folder as the installer, the installer will run the malicious file. Version 24.13.2 fixes this issue. No known workaround exists. The code executes at the installer-level before the app is present on the system, so there's no way to check if it exists in a current installer.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/electron-userland/electron-builder/commit/8f4acff3c2d45c1cb07779bb3fe79644408ee387GitHubgithub.com/electron-userland/electron-builder/pull/8059GitHubgithub.com/electron-userland/electron-builder/security/advisories/GHSA-r4pf-3v7r-hh55GitHubgithub.com/electron-userland/electron-builder/commit/8f4acff3c2d45c1cb07779bb3fe79644408ee387GitHubgithub.com/electron-userland/electron-builder/pull/8059GitHubgithub.com/electron-userland/electron-builder/security/advisories/GHSA-r4pf-3v7r-hh55

How CyberStrike helps

Frequently asked questions

What is CVE-2024-27303?

CVE-2024-27303 is a high-severity vulnerability. It was published on March 6, 2024 and has a CVSS 3.1 base score of 7.3 (HIGH).

How severe is CVE-2024-27303?

This vulnerability has a CVSS 3.1 base score of 7.3, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2024-27303?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2024-27303?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-27303 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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