CVE-2023-0652
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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.29%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.29% probability · 21th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-59
- Affected
- cloudflare/warp
- Source
- cna@cloudflare.com
References
- https://developers.cloudflare.com/warp-client/get-started/windows/Product
- https://github.com/cloudflare/advisories/security/advisories/GHSA-xmhj-9p83-xvw9Vendor Advisory
- https://install.appcenter.ms/orgs/cloudflare/apps/1.1.1.1-windows-1/distribution_groups/releaseRelease Notes
- https://developers.cloudflare.com/warp-client/get-started/windows/Product
- https://github.com/cloudflare/advisories/security/advisories/GHSA-xmhj-9p83-xvw9Vendor Advisory
- https://install.appcenter.ms/orgs/cloudflare/apps/1.1.1.1-windows-1/distribution_groups/releaseRelease Notes
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.