CVE-2022-4428: support_uri validation missing in WARP client for Windows
supporturi 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).
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Frequently Asked Questions
What is CVE-2022-4428?
CVE-2022-4428 is a vulnerability in the WARP client local settings file (mdm.xml) that allows privilege escalation and arbitrary code execution.
What is the severity of CVE-2022-4428?
CVE-2022-4428 has a severity level of high (8 out of 10).
How does CVE-2022-4428 affect Cloudflare Warp?
CVE-2022-4428 affects Cloudflare Warp version up to 2022.10.106.0 on Windows.
What is the impact of CVE-2022-4428?
The impact of CVE-2022-4428 is privilege escalation and the ability to execute arbitrary code on the affected machine.
Is there a fix available for CVE-2022-4428?
Cloudflare has released a fix for CVE-2022-4428. Users should update their Cloudflare Warp client to the latest version to mitigate the vulnerability.