Vulnerability · Published Sep 7, 2023 · Assigned by cloudflare

CVE-2023-3747Insufficient Validation on Override Codes for Always-Enabled WARP Mode

Medium 5.5

In plain English

A medium-severity security flaw in WARP Client from Cloudflare. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 10% of all known vulnerabilities).

Severity (CVSS 3.1)5.5Medium
Exploit odds (30 days)0.2%top 90.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

Zero Trust Administrators have the ability to disallow end users from disabling WARP on their devices. Override codes can also be created by the Administrators to allow a device to temporarily be disconnected from WARP, however, due to lack of server side validation, an attacker with local access to the device, could extend the maximum allowed disconnected time of WARP client granted by an override code by changing the date & time on the local device where WARP is running.

Affected products (as reported)

VendorProductVersions
Cloudflare WARP Client 0 – before 6.29

Weakness: CWE-602 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

References