CVE-2022-4428

support_uri validation missing in WARP client for Windows

Description

support_uri parameter in the WARP client local settings file (mdm.xml) lacked proper validation which allowed for privilege escalation and launching an arbitrary executable on the local machine upon clicking on the "Send feedback" option. An attacker with access to the local file system could use a crafted XML config file pointing to a malicious file or set a local path to the executable using Cloudflare Zero Trust Dashboard (for Zero Trust enrolled clients).

Remediation

Solution:

  • Update WARP client for Windows to the latest available version.

Category

8.9
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.17%
Third-Party Advisory github.com
Affected: Cloudflare WARP
Published at:
Updated at:

References

Link Tags
https://github.com/cloudflare/advisories/security/advisories/GHSA-h3j3-fhqg-66rh third party advisory product

Frequently Asked Questions

What is the severity of CVE-2022-4428?
CVE-2022-4428 has been scored as a high severity vulnerability.
How to fix CVE-2022-4428?
To fix CVE-2022-4428: Update WARP client for Windows to the latest available version.
Is CVE-2022-4428 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-4428 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-4428?
CVE-2022-4428 affects Cloudflare WARP.
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