CVE-2024-39698
Description
electron-updater allows for automatic updates for Electron apps. The file packages/electron-updater/src/windowsExecutableCodeSignatureVerifier.ts implements the signature validation routine for Electron applications on Windows. Because of the surrounding shell, a first pass by cmd.exe expands any environment variable found in command-line above. This creates a situation where verifySignature() can be tricked into validating the certificate of a different file than the one that was just downloaded. If the step is successful, the malicious update will be executed even if its signature is invalid. This attack assumes a compromised update manifest (server compromise, Man-in-the-Middle attack if fetched over HTTP, Cross-Site Scripting to point the application to a malicious updater server, etc.). The patch is available starting from 6.3.0-alpha.6.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
electron-updaternpm | < 6.3.0-alpha.6 | 6.3.0-alpha.6 |
Affected products
9- Range: < 6.3.0-alpha.6
cpe:2.3:a:electron:electron-builder:*:*:*:*:*:node.js:*:*+ 6 more
- cpe:2.3:a:electron:electron-builder:*:*:*:*:*:node.js:*:*range: <6.3.0
- cpe:2.3:a:electron:electron-builder:6.3.0:alpha0:*:*:*:node.js:*:*
- cpe:2.3:a:electron:electron-builder:6.3.0:alpha1:*:*:*:node.js:*:*
- cpe:2.3:a:electron:electron-builder:6.3.0:alpha2:*:*:*:node.js:*:*
- cpe:2.3:a:electron:electron-builder:6.3.0:alpha3:*:*:*:node.js:*:*
- cpe:2.3:a:electron:electron-builder:6.3.0:alpha4:*:*:*:node.js:*:*
- cpe:2.3:a:electron:electron-builder:6.3.0:alpha5:*:*:*:node.js:*:*
Patches
Vulnerability mechanics
References
6- github.com/electron-userland/electron-builder/commit/ac2e6a25aa491c1ef5167a552c19fc2085cd427fnvdPatchWEB
- github.com/electron-userland/electron-builder/pull/8295nvdIssue TrackingPatchWEB
- github.com/electron-userland/electron-builder/security/advisories/GHSA-9jxc-qjr9-vjxqnvdExploitVendor AdvisoryWEB
- github.com/advisories/GHSA-9jxc-qjr9-vjxqghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2024-39698ghsaADVISORY
- github.com/electron-userland/electron-builder/blob/140e2f0eb0df79c2a46e35024e96d0563355fc89/packages/electron-updater/src/windowsExecutableCodeSignatureVerifier.tsnvdProductWEB
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