CVEvulnerability

CVE-2023-2754

6.8 MEDIUM Published 2023-08-03 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2023-08-03
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.4 HIGH — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
CVSS 3.1 ([email protected])
6.8 MEDIUM — CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Weaknesses
CWE-319

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.

Affected configurations

• cloudflare warp (< 2023.7.160.0)

Related

Weakness · CWE (1)

  • CWE-319 Cleartext Transmission of Sensitive Information weakness

References