CVE-2023-0652 Local Privilege Escalation in Cloudflare WARP Installer (Windows)
A local attacker can exploit hardlink creation during repair or installation to overwrite SYSTEM files and escalate privileges on Windows.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2023-0652?
CVE-2023-0652 is a high-severity vulnerability in Cloudflare WARP, published on 6 Apr 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Due to a hardlink created in the ProgramData folder during the repair process of the software, the installer (MSI) of WARP Client for Windows (<= 2022.12.582.0) allowed a malicious attacker to forge the destination of the hardlink and escalate privileges, overwriting SYSTEM protected files. As Cloudflare WARP client for Windows (up to version 2022.5.309.0) allowed creation of mount points from its ProgramData folder, during installation of the WARP client, it was possible to escalate privileges and overwrite SYSTEM protected files.
Weakness: CWE-59
Which versions are affected by CVE-2023-0652?
It affects 1 product.
Products include Cloudflare Warp.
How do I fix CVE-2023-0652?
No fix has been published for CVE-2023-0652 yet. Limit exposure of the affected software until one is available.
Is CVE-2023-0652 being exploited?
There is no known exploitation of CVE-2023-0652 in the wild and no public exploit code.
Other vulnerabilities in Cloudflare WARP
- CVE-2022-4428 support_uri validation missing in WARP client for Windows
- 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-2023-1412 Local Privilege Escalation Vulnerability in WARP's MSI Installer