CVE-2022-4428 support_uri validation missing in WARP client for Windows
An attacker with local file system access can escalate privileges and execute arbitrary code via a crafted support_uri in the WARP client settings.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2022-4428?
CVE-2022-4428 is a high-severity vulnerability in Cloudflare WARP, published on 11 Jan 2023. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official 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).
Weakness: CWE-20
Which versions are affected by CVE-2022-4428?
It affects 1 product.
Products include Cloudflare Warp.
How do I fix CVE-2022-4428?
No fix has been published for CVE-2022-4428 yet. Limit exposure of the affected software until one is available.
Is CVE-2022-4428 being exploited?
There is no known exploitation of CVE-2022-4428 in the wild and no public exploit code.
Other vulnerabilities in Cloudflare WARP
- CVE-2022-2225 Zero Trust Secure Web Gateway policies bypass using WARP client subcommands
- CVE-2023-2754 Plaintext transmission of DNS requests in Windows 1.1.1.1 WARP client
- CVE-2023-1862 Remote access to warp-svc.exe in Cloudflare WARP
- CVE-2023-0652 Local Privilege Escalation in Cloudflare WARP Installer (Windows)
- CVE-2023-1412 Local Privilege Escalation Vulnerability in WARP's MSI Installer