GHSA-p2jh-44qj-pf2v

Source

https://github.com/advisories/GHSA-p2jh-44qj-pf2v

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/11/GHSA-p2jh-44qj-pf2v/GHSA-p2jh-44qj-pf2v.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-p2jh-44qj-pf2v

Aliases

CVE-2022-36077

Related

CVE-2022-36077

Published

2022-11-10T12:38:57Z

Modified

2023-11-08T04:09:59.820649Z

Severity

5.4 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:L CVSS Calculator

Summary

Exfiltration of hashed SMB credentials on Windows via file:// redirect

Details

Impact

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.

Patches

This issue has been fixed in all current stable versions of Electron. Specifically, these versions contain the fixes:

21.0.0-beta.1
20.0.1
19.0.11
18.3.7

We recommend all apps upgrade to the latest stable version of Electron.

Workarounds

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:

app.on('web-contents-created', (e, webContents) => {
  webContents.on('will-redirect', (e, url) => {
    if (/^file:/.test(url)) e.preventDefault()
  })
})

For more information

If you have any questions or comments about this advisory, email us at security@electronjs.org.

Credit

Thanks to user @coolcoolnoworries for reporting this issue.

Database specific

{
    "github_reviewed_at": "2022-11-10T12:38:57Z",
    "github_reviewed": true,
    "nvd_published_at": "2022-11-08T07:15:00Z",
    "cwe_ids": [
        "CWE-200",
        "CWE-522"
    ],
    "severity": "MODERATE"
}

References

Affected packages

npm / electron

Package

Name: electron; View open source insights on deps.dev
Purl: pkg:npm/electron

Affected ranges

Type: SEMVER
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

18.3.7