CVE-2023-1412 — An unprivileged (non-admin) user can exploit an Improper Access Control vulnerab
An unprivileged (non-admin) user can exploit an Improper Access Control vulnerability in the Cloudflare WARP Client for Windows (<= 2022.12.582.0) to perform privileged operations with SYSTEM context by working with a combination of opportunistic locks (oplock) and symbolic li
Published
2023-04-05T15:22:56.317Z
Last modified
2025-02-10T18:02:41.160Z
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
01What is this vulnerability?
An unprivileged (non-admin) user can exploit an Improper Access Control vulnerability in the Cloudflare WARP Client for Windows (<= 2022.12.582.0) to perform privileged operations with SYSTEM context by working with a combination of opportunistic locks (oplock) and symbolic links (which can both be created by an unprivileged user).
02Affected products
| Vendor | Product | Versions |
|---|
| Cloudflare | WARP | 0 |
03Active exploitation status
Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.
04Recommended remediation
- Patch to a fixed version listed in the vendor advisory (see references below).
- Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
- Hunt historical logs for exploitation indicators — see Detection signatures below.
05Technical details
For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.
06Detection signatures
Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.
07Related CVEs
No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.
08Timeline
- Published: 2023-04-05T15:22:56.317Z
- Last modified: 2025-02-10T18:02:41.160Z
09References
- github.com — https://github.com/cloudflare/advisories/security/advisories/GHSA-hgxh-48m3-3gq7
- install.appcenter.ms — https://install.appcenter.ms/orgs/cloudflare/apps/1.1.1.1-windows-1/distribution…
- developers.cloudflare.com — https://developers.cloudflare.com/warp-client/get-started/windows/
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