CVE-2022-3320: Bypassing Cloudflare Zero Trust policies using warp-cli set-custom-endpoint command
First published: Fri Oct 28 2022(Updated: )
It was possible to bypass policies configured for Zero Trust Secure Web Gateway by using warp-cli 'set-custom-endpoint' subcommand. Using this command with an unreachable endpoint caused the WARP Client to disconnect and allowed bypassing administrative restrictions on a Zero Trust enrolled endpoint.
Credit: cna@cloudflare.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cloudflare Warp | <2022.8.857.0 | |
| Cloudflare Warp | <2022.8.861.0 | |
| Cloudflare Warp | <2022.8.936 |
Remedy
Upgrade to specified patched versions.
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Frequently Asked Questions
What is CVE-2022-3320?
CVE-2022-3320 is a vulnerability that allowed bypassing policies configured for Zero Trust Secure Web Gateway by using the warp-cli 'set-custom-endpoint' subcommand.
How does CVE-2022-3320 affect Cloudflare Warp?
CVE-2022-3320 affects Cloudflare Warp versions up to 2022.8.857.0 for Windows, 2022.8.861.0 for macOS, and 2022.8.936 for Linux Kernel.
What is the severity of CVE-2022-3320?
CVE-2022-3320 has a severity rating of 9.8 (Critical).
How can CVE-2022-3320 be exploited?
CVE-2022-3320 can be exploited by using the warp-cli 'set-custom-endpoint' subcommand with an unreachable endpoint.
How can I fix CVE-2022-3320 in Cloudflare Warp?
To fix CVE-2022-3320 in Cloudflare Warp, update to a version higher than 2022.8.857.0 for Windows, 2022.8.861.0 for macOS, or 2022.8.936 for Linux Kernel.
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