CVE-2022-36077
Description
The Electron framework enables writing cross-platform desktop applications using JavaScript, HTML and CSS. In versions prior to 21.0.0-beta.1, 20.0.1, 19.0.11, and 18.3.7, Electron is vulnerable to Exposure of Sensitive Information. When following a redirect, Electron delays a check for redirecting to file:// URLs from other schemes. The contents of the file is not available to the renderer following the redirect, but if the redirect target is a SMB URL such as `file://some.website.com/`, then in some cases, Windows will connect to that server and attempt NTLM authentication, which can include sending hashed credentials.This issue has been patched in versions: 21.0.0-beta.1, 20.0.1, 19.0.11, and 18.3.7. Users are recommended to upgrade to the latest stable version of Electron. If upgrading isn't possible, this issue can be addressed without upgrading by preventing redirects to file:// URLs in the `WebContents.on('will-redirect')` event, for all WebContents as a workaround.
How to fix
- electronjs electron18.3.7, 19.0.11, 20.0.1 or later
- electron18.3.7, 20.0.1, 19.0.11 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| electronjs electron | v < 18.3.7, 19.0.0 ≤ v < 19.0.11, 20.0.0 ≤ v < 20.0.1, 21.0.0 | 18.3.7, 19.0.11, 20.0.1 |
| electronnpm | v < 18.3.7, 20.0.0-beta.1 ≤ v < 20.0.1, 19.0.0-beta.1 ≤ v < 19.0.11 | 18.3.7, 20.0.1, 19.0.11 |
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Attack Surface Management
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