CVE-2023-2754

medium

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.

References

https://install.appcenter.ms/orgs/cloudflare/apps/1.1.1.1-windows-1/distribution_groups/release

https://github.com/cloudflare/advisories/security/advisories/GHSA-mv6g-7577-vq4w

https://developers.cloudflare.com/warp-client/

Details

Source: Mitre, NVD

Published: 2023-08-03

Updated: 2023-08-09

Risk Information

CVSS v2

Base Score: 6.2

Vector: CVSS2#AV:A/AC:H/Au:N/C:C/I:C/A:N

Severity: Medium

CVSS v3

Base Score: 6.8

Vector: CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Severity: Medium

EPSS

EPSS: 0.0044