Vulnerability Details : CVE-2023-2754
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.
Products affected by CVE-2023-2754
- cpe:2.3:a:cloudflare:warp:*:*:*:*:*:windows:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-2754
0.06%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 25 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-2754
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.4
|
HIGH | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N |
2.2
|
5.2
|
Cloudflare, Inc. | |
|
6.8
|
MEDIUM | CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N |
1.6
|
5.2
|
NIST |
CWE ids for CVE-2023-2754
-
The product transmits sensitive or security-critical data in cleartext in a communication channel that can be sniffed by unauthorized actors.Assigned by:
- cna@cloudflare.com (Secondary)
- nvd@nist.gov (Primary)
References for CVE-2023-2754
-
https://github.com/cloudflare/advisories/security/advisories/GHSA-mv6g-7577-vq4w
Plaintext transmission of DNS requests in Windows 1.1.1.1 WARP client · Advisory · cloudflare/advisories · GitHubVendor Advisory
-
https://install.appcenter.ms/orgs/cloudflare/apps/1.1.1.1-windows-1/distribution_groups/release
App CenterRelease Notes
-
https://developers.cloudflare.com/warp-client/
Cloudflare WARP client · Cloudflare WARP client docsProduct
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