Vulnerability Description
The Cloudflare WARP client for Windows assigns loopback IPv4 addresses for the DNS Servers, since WARP acts as local DNS server that performs DNS queries in a secure manner, however, if a user is connected to WARP over an IPv6-capable network, te WARP client did not assign loopback IPv6 addresses but Unique Local Addresses, which under certain conditions could point towards unknown devices in the same local network which enables an Attacker to view DNS queries made by the device.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Cloudflare | Warp | < 2023.7.160.0 |
Related Weaknesses (CWE)
References
- https://developers.cloudflare.com/warp-client/Product
- https://github.com/cloudflare/advisories/security/advisories/GHSA-mv6g-7577-vq4wVendor Advisory
- https://install.appcenter.ms/orgs/cloudflare/apps/1.1.1.1-windows-1/distributionRelease Notes
- https://developers.cloudflare.com/warp-client/Product
- https://github.com/cloudflare/advisories/security/advisories/GHSA-mv6g-7577-vq4wVendor Advisory
- https://install.appcenter.ms/orgs/cloudflare/apps/1.1.1.1-windows-1/distributionRelease Notes
FAQ
What is CVE-2023-2754?
CVE-2023-2754 is a vulnerability with a CVSS score of 7.4 (HIGH). The Cloudflare WARP client for Windows assigns loopback IPv4 addresses for the DNS Servers, since WARP acts as local DNS server that performs DNS queries in a secure manner, however, if a user is conn...
How severe is CVE-2023-2754?
CVE-2023-2754 has been rated HIGH with a CVSS base score of 7.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-2754?
Check the references section above for vendor advisories and patch information. Affected products include: Cloudflare Warp.