CVE-2023-1862: Remote access to warp-svc.exe in Cloudflare WARP
First published: Tue Jun 20 2023(Updated: )
Cloudflare WARP client for Windows (up to v2023.3.381.0) allowed a malicious actor to remotely access the warp-svc.exe binary due to an insufficient access control policy on an IPC Named Pipe. This would have enabled an attacker to trigger WARP connect and disconnect commands, as well as obtaining network diagnostics and application configuration from the target's device. It is important to note that in order to exploit this, a set of requirements would need to be met, such as the target's device must've been reachable on port 445, allowed authentication with NULL sessions or otherwise having knowledge of the target's credentials.
Credit: cna@cloudflare.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cloudflare Warp | <=2023.3.381.0 |
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Reference Links
Frequently Asked Questions
What is CVE-2023-1862?
CVE-2023-1862 is a vulnerability in the Cloudflare WARP client for Windows (up to v2023.3.381.0) that allowed a malicious actor to remotely access the warp-svc.exe binary due to an insufficient access control policy on an IPC Named Pipe.
How does CVE-2023-1862 affect Cloudflare WARP client for Windows?
CVE-2023-1862 affects Cloudflare WARP client for Windows (up to v2023.3.381.0) by allowing a malicious actor to remotely access the warp-svc.exe binary.
What is the severity of CVE-2023-1862?
CVE-2023-1862 has a severity rating of 7.3 (high).
How can I fix CVE-2023-1862?
To fix CVE-2023-1862, it is recommended to update the Cloudflare WARP client for Windows to a version beyond v2023.3.381.0.
Where can I find more information about CVE-2023-1862?
More information about CVE-2023-1862 can be found at the following references: [Link 1](https://developers.cloudflare.com/warp-client/get-started/windows/), [Link 2](https://github.com/cloudflare/advisories/security/advisories/GHSA-q55r-53c8-5642), [Link 3](https://install.appcenter.ms/orgs/cloudflare/apps/1.1.1.1-windows-1/distribution_groups/release).
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