Internet Bug Bounty · Report #1787810

Electron CVE-2022-35954 Delimiter Injection Vulnerability in exportVariable

Validstatus

mediumseverity

12upvotes

14 Dec 2022disclosed

How it was found

Describe the summary:

The Electron Website provides a set of packages to make creating actions easier. The core.exportVariable function uses a well known delimiter that attackers can use to break out of that specific variable and assign values to other arbitrary variables. Workflows that write untrusted values to the GITHUB_ENV file may cause the path or other environment variables to be modified without the intention of the workflow or action author. Users should upgrade to @actions/core v1.9.1. If you are unable to upgrade the @actions/core package, you can modify your action to ensure that any user input does not contain the delimiter _GitHubActionsFileCommandDelimeter_ before calling core.exportVariable.

Impact

CVE-2022-35954 CWE-74 CWE-77 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:N

This report was disclosed publicly on HackerOne and belongs to its author and the program. See the original