CVE-2023-0652— Local Privilege Escalation in Cloudflare WARP Installer (Windows)
Quick assessment
Affected
Cloudflare WARP
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Cloudflare WARP（Cloudflare Vpn）是美国Cloudflare公司的一个用于安全连接的客户端应用软件。 Cloudflare WARP 2023.3.381.0之前版本存在安全漏洞，该漏洞源于在软件修复过程中创建了一个硬链接，允许恶意攻击者伪造硬链接的目的地并提升权限，覆盖 系统保护的文件。
Possible ATT&CK Techniques 1 AI
T1055 · Process Injection
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I. Basic Information for CVE-2023-0652
Vulnerability Information
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Vulnerability Title
Local Privilege Escalation in Cloudflare WARP Installer (Windows)
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
在文件访问前对链接解析不恰当(链接跟随)
Source: CVE Program / CVE List V5
Vulnerability Title
Cloudflare WARP 后置链接漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cloudflare WARP（Cloudflare Vpn）是美国Cloudflare公司的一个用于安全连接的客户端应用软件。 Cloudflare WARP 2023.3.381.0之前版本存在安全漏洞，该漏洞源于在软件修复过程中创建了一个硬链接，允许恶意攻击者伪造硬链接的目的地并提升权限，覆盖 系统保护的文件。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Cloudflare | WARP | 0 ~ 2022.5.309.0 | - |
|
II. Public POCs for CVE-2023-0652
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2023-0652 (1)
Other References for CVE-2023-0652 (2)
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V. Comments for CVE-2023-0652
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