Overview
The vulnerability, identified as CVE-2025-27022, is a significant path traversal vulnerability that affects the WebGUI HTTP endpoint in Infinera G42 version R6.1.3. This vulnerability is significant as it allows remote authenticated users to potentially download all OS files via HTTP requests, highlighting a potential risk of system compromise and data leakage.
Vulnerability Summary
CVE ID: CVE-2025-27022
Severity: High (7.5 CVSS)
Attack Vector: Network
Privileges Required: User level
User Interaction: Required
Impact: System compromise, data leakage
Affected Products
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Product | Affected Versions
Infinera G42 | R6.1.3
How the Exploit Works
The exploit leverages a path traversal vulnerability in the WebGUI HTTP endpoint. This vulnerability stems from a lack of sufficient validation of user-supplied input. The flaw allows authenticated users to access all files on the target machine file system that are readable to the user account used to run the httpd service. This means that a malicious authenticated user could potentially download all readable files on the system via HTTP requests.
Conceptual Example Code
The vulnerability might be exploited using a crafted HTTP request like the one below:
GET /../../../etc/passwd HTTP/1.1
Host: target.example.com
Authorization: Basic [Base64-encoded-credentials]In this example, the “GET” request attempts to traverse the file system to reach the “/etc/passwd” file, a common target for attacks due to its sensitive content. The “Authorization” header includes Base64-encoded credentials for an authenticated user.
