Overview
A critical vulnerability denoted as CVE-2025-26389 has been identified within OZW672 and OZW772 versions predating V8.0. The vulnerability affects the web service in these devices, specifically the `exportDiagramPage` endpoint which fails to sufficiently sanitize input parameters. This vulnerability is significant as it could potentially allow unauthenticated remote attackers to execute arbitrary code with root privileges. Considering the widespread use of these devices, this vulnerability is of considerable concern to network administrators, cybersecurity professionals, and organizations at large.
Vulnerability Summary
CVE ID: CVE-2025-26389
Severity: Critical (CVSS: 10.0)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Potential system compromise and data leakage
Affected Products
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Product | Affected Versions
OZW672 | < V8.0 OZW772 | < V8.0 How the Exploit Works
The vulnerability arises from the improper sanitization of input parameters required for the `exportDiagramPage` endpoint in the affected devices. An attacker could exploit this vulnerability by sending a crafted request to the vulnerable endpoint. If the request is processed, it could result in the execution of arbitrary code with root privileges on the device. This could potentially lead to a full system compromise, given the elevated level of access obtained by the attacker.
Conceptual Example Code
Below is a conceptual example of how an attack exploiting this vulnerability might look. This example uses a maliciously crafted HTTP POST request:
POST /exportDiagramPage HTTP/1.1
Host: target.example.com
Content-Type: application/json
{ "input_parameters": "malicious_payload;rm -rf /" }In the above example, the “malicious_payload” stands for any malicious code that the attacker wants to execute. The `rm -rf /` command is an example of a destructive command that an attacker could use to delete all files on the system if the exploit is successful.
Mitigation Guidance
It’s strongly recommended that users of the affected devices update to version V8.0 or later as soon as possible. If an immediate system upgrade is not feasible, users should consider employing a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) as temporary mitigation against potential attacks exploiting this vulnerability. These measures, while not a full solution, can help detect and block malicious traffic aimed at exploiting this vulnerability.