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GSA_kwCzR0hTQS1yNHBmLTN2N3ItaGg1Nc4AA5wC

High EPSS: 0.00082% (0.2492 Percentile) EPSS:
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electron-builder's NSIS installer - execute arbitrary code on the target machine (Windows only)

Affected Packages Affected Versions Fixed Versions
npm:app-builder-lib < 24.13.2 24.13.2
65 Dependent packages
29,768 Dependent repositories
2,340,484 Downloads last month

Affected Version Ranges

All affected versions

20.24.0, 20.24.2, 20.24.3, 20.24.4, 20.24.5, 20.25.0, 20.26.0, 20.26.1, 20.27.0, 20.27.1, 20.28.0, 20.28.1, 20.28.2, 20.28.3, 20.28.4, 20.29.0, 20.29.1, 20.30.0, 20.31.0, 20.31.1, 20.31.2, 20.31.3, 20.32.0, 20.32.1, 20.32.2, 20.33.0, 20.33.1, 20.33.2, 20.34.0, 20.35.0, 20.36.0, 20.36.1, 20.36.2, 20.37.0, 20.38.0, 20.38.1, 20.38.2, 20.38.3, 20.38.4, 20.38.5, 20.39.0, 20.40.0, 20.40.1, 20.40.2, 20.41.0, 20.42.0, 20.43.0, 20.44.0, 20.44.1, 20.44.2, 20.44.3, 20.44.4, 21.0.0, 21.0.1, 21.0.2, 21.0.3, 21.0.4, 21.0.5, 21.0.6, 21.0.7, 21.0.8, 21.0.9, 21.0.10, 21.0.11, 21.0.12, 21.0.13, 21.0.14, 21.0.15, 21.0.16, 21.1.0, 21.1.1, 21.1.2, 21.1.3, 21.1.4, 21.1.5, 21.1.6, 21.2.0, 22.0.0, 22.1.0, 22.2.0, 22.3.0, 22.3.1, 22.3.2, 22.3.3, 22.3.4, 22.3.5, 22.3.6, 22.4.0, 22.4.1, 22.5.0, 22.5.1, 22.6.0, 22.6.1, 22.7.0, 22.8.0, 22.8.1, 22.9.0, 22.9.1, 22.10.0, 22.10.1, 22.10.2, 22.10.3, 22.10.4, 22.10.5, 22.11.0, 22.11.1, 22.11.2, 22.11.3, 22.11.4, 22.11.5, 22.11.6, 22.11.7, 22.11.8, 22.11.9, 22.11.10, 22.11.11, 22.12.0, 22.12.1, 22.13.0, 22.13.1, 22.14.0, 22.14.1, 22.14.2, 22.14.3, 22.14.4, 22.14.5, 22.14.6, 22.14.7, 22.14.8, 22.14.9, 22.14.10, 22.14.11, 22.14.12, 22.14.13, 23.0.0, 23.0.1, 23.0.2, 23.0.3, 23.0.4, 23.0.6, 23.0.7, 23.0.8, 23.0.9, 23.1.0, 23.2.0, 23.3.0, 23.3.1, 23.3.2, 23.3.3, 23.4.0, 23.5.0, 23.5.1, 23.6.0, 24.0.0, 24.1.0, 24.1.1, 24.1.2, 24.1.3, 24.2.0, 24.2.1, 24.3.0, 24.4.0, 24.5.0, 24.5.1, 24.5.2, 24.6.0, 24.6.1, 24.6.2, 24.6.3, 24.6.4, 24.6.5, 24.7.0, 24.8.0, 24.8.1, 24.9.0, 24.9.1, 24.9.2, 24.9.3, 24.9.4, 24.10.0, 24.11.0, 24.12.0, 24.13.0, 24.13.1

All unaffected versions

24.13.2, 24.13.3, 25.0.0, 25.0.1, 25.0.2, 25.0.3, 25.0.4, 25.0.5, 25.0.6, 25.1.1, 25.1.2, 25.1.3, 25.1.4, 25.1.5, 25.1.6, 25.1.7, 25.1.8, 26.0.0, 26.0.1, 26.0.2, 26.0.3, 26.0.4, 26.0.5, 26.0.6, 26.0.7, 26.0.8, 26.0.9, 26.0.10, 26.0.11, 26.0.12, 26.0.13, 26.0.14, 26.0.15, 26.0.16, 26.0.17, 26.0.18, 26.0.19

Impact

Windows-Only: 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.

Patches

Fixed in https://github.com/electron-userland/electron-builder/pull/8059

Workarounds

None, it 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.

References

https://cwe.mitre.org/data/definitions/426.html
https://cwe.mitre.org/data/definitions/427

References:

Identifiers

GHSA-r4pf-3v7r-hh55

CVE-2024-27303

Risk

Severity

High

EPSS

EPSS Percentage: 0.00082

EPSS Percentile: 0.2492

Classification

General

Source

GitHub Advisory Database

Origin

Unspecified

Repository

https://github.com/electron-userland/electron-builder

Date and time

Published

over 1 year ago

Updated

over 1 year ago

API

JSON