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CVE-2023-2754

Plaintext transmission of DNS requests in Windows 1.1.1.1 WARP client

Published: Aug 3, 2023Updated: Nov 21, 2024 Sources: CVE List NVDCWE-319
NVD MITRE
7.4CVSSHIGH
EPSS Score
0.7%
Top 50.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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 Vector Breakdown

AV:NAC:HPR:NUI:NS:UC:HI:HA:N
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-319

Affected Products

warpcloudflare
Desktop App
Security Products / secure-gateway-vpn
WARPCloudflare
Desktop App
Security Products / secure-gateway-vpn
cloudflarecommercialUSSecurity Productsaka warp, octorpki, quiche

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available
Workaround Available

MITRE ATT&CK

2 techniques
Collection
Credential Access
View detailed technique mapping

References

https://developers.cloudflare.com/warp-client/
developers.cloudflare.com
https://github.com/cloudflare/advisories/security/advisories/GHSA-mv6g-7577-vq4w
github.com
https://install.appcenter.ms/orgs/cloudflare/apps/1.1.1.1-windows-1/distribution_groups/release
install.appcenter.ms

Timeline

Published
Aug 3, 2023
Last Updated
Nov 21, 2024

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