ghsa-gxh7-wv9q-fwfr
Vulnerability from github
Impact
A Content-Security-Policy that disables eval, specifically setting a script-src directive and not providing unsafe-eval in that directive, is not respected in renderers that have sandbox and contextIsolation disabled. i.e. sandbox: false and contextIsolation: false in the webPreferences object.
This resulted in incorrectly allowing usage of methods like eval() and new Function, which can result in an expanded attack surface.
Patches
This issue only ever affected the 22 and 23 major versions of Electron and has been fixed in the latest versions of those release lines. Specifically, these versions contain the fixes:
- 22.0.1
- 23.0.0-alpha.2
We recommend all apps upgrade to the latest stable version of Electron, especially if they use sandbox: false or contextIsolation: false.
Workarounds
If upgrading isn't possible, this issue can be addressed without upgrading by enabling at least one of sandbox: true or contextIsolation: true on all renderers.
js
const mainWindow = new BrowserWindow({
webPreferences: {
sandbox: true,
}
});
For more information
If you have any questions or comments about this advisory, email us at security@electronjs.org.
Credit
Thanks to user @andreasdj for reporting this issue.
{
"affected": [
{
"package": {
"ecosystem": "npm",
"name": "electron"
},
"ranges": [
{
"events": [
{
"introduced": "22.0.0-beta.1"
},
{
"fixed": "22.0.1"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "npm",
"name": "electron"
},
"ranges": [
{
"events": [
{
"introduced": "23.0.0-alpha.1"
},
{
"fixed": "23.0.0-alpha.2"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2023-23623"
],
"database_specific": {
"cwe_ids": [
"CWE-670"
],
"github_reviewed": true,
"github_reviewed_at": "2023-09-06T18:42:17Z",
"nvd_published_at": "2023-09-06T21:15:08Z",
"severity": "HIGH"
},
"details": "### Impact\nA Content-Security-Policy that disables eval, specifically setting a `script-src` directive and _not_ providing `unsafe-eval` in that directive, is not respected in renderers that have sandbox and contextIsolation disabled. i.e. `sandbox: false` and `contextIsolation: false` in the `webPreferences` object.\n\nThis resulted in incorrectly allowing usage of methods like `eval()` and `new Function`, which can result in an expanded attack surface.\n\n### Patches\nThis issue only ever affected the 22 and 23 major versions of Electron and has been fixed in the latest versions of those release lines. Specifically, these versions contain the fixes:\n\n- 22.0.1\n- 23.0.0-alpha.2\n\nWe recommend all apps upgrade to the latest stable version of Electron, especially if they use `sandbox: false` or `contextIsolation: false`.\n\n### Workarounds\nIf upgrading isn\u0027t possible, this issue can be addressed without upgrading by enabling at least one of `sandbox: true` or `contextIsolation: true` on all renderers.\n\n```js\nconst mainWindow = new BrowserWindow({\n webPreferences: {\n sandbox: true,\n }\n});\n```\n\n### For more information\nIf you have any questions or comments about this advisory, email us at [security@electronjs.org](mailto:security@electronjs.org).\n\n### Credit\nThanks to user @andreasdj for reporting this issue.",
"id": "GHSA-gxh7-wv9q-fwfr",
"modified": "2023-09-06T18:42:17Z",
"published": "2023-09-06T18:42:17Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/electron/electron/security/advisories/GHSA-gxh7-wv9q-fwfr"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-23623"
},
{
"type": "WEB",
"url": "https://github.com/electron/electron/pull/36667"
},
{
"type": "WEB",
"url": "https://github.com/electron/electron/pull/36668"
},
{
"type": "WEB",
"url": "https://github.com/electron/electron/commit/9e7fbc7021d8d716c43782249a552e55289c35db"
},
{
"type": "PACKAGE",
"url": "https://github.com/electron/electron"
},
{
"type": "WEB",
"url": "https://github.com/electron/electron/releases/tag/v22.0.1"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
],
"summary": "Electron\u0027s Content-Secrity-Policy disabling eval not applied consistently in renderers with sandbox disabled"
}
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.