Description

4MOSAn GCB Doctor developed by 4MOSAn Security Technology has a OS Command Injection vulnerability. Unauthenticated remote attackers can inject malicious commands through an unremoved ADOdb test page parameter, thereby executing arbitrary system commands on the server.

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "9.8",
  "pubDate": "2026-08-24T04:16:59.493Z",
  "pubdate": "2026-08-24T04:16:59.493Z",
  "executiveSummary": "An Operating System (OS) Command Injection vulnerability has been identified in 4MOSAn GCB Doctor, developed by 4MOSAn Security Technology.\nThe vulnerability resides within an unremoved ADOdb test page parameter left exposed in the application.\nUnauthenticated remote attackers can exploit this flaw to inject and execute arbitrary system commands directly on the underlying host operating system with the privileges of the web application server.\nSuccessful exploitation compromises the entire confidentiality, integrity, and availability of the affected server infrastructure, potentially allowing threat actors to establish persistent access, pivot within the internal network, or exfiltrate sensitive data.\nThe attack vector requires network connectivity to the vulnerable endpoint and does not necessitate prior authentication or specialized user interaction, significantly increasing the overall risk profile of the deployment.\nRemediation requires the immediate removal of legacy testing components and strict input validation controls to prevent command execution.",
  "technicalDetails": "The vulnerability is caused by insufficient sanitization and validation of user-supplied input passed to an unremoved ADOdb test page parameter within 4MOSAn GCB Doctor.\nThe vulnerable component exposes debugging or testing functionality intended for development environments that improperly passes raw parameters into system shell execution functions or database abstraction layers that permit OS-level command chaining.\nAttackers can leverage network exposure to transmit specifically crafted HTTP requests containing malicious shell metacharacters and operating system commands directly to the vulnerable parameter.\nUpon receiving the request, the underlying application processes the input without adequate filtering, passing the payload to the host operating system's command interpreter.\nThis results in the immediate execution of arbitrary system commands within the security context of the web server process.\nThe attack flow proceeds as follows: First, the unauthenticated remote attacker identifies the exposed ADOdb test page via directory enumeration or public intelligence. Second, the attacker crafts an HTTP request appending malicious command injection payloads to the vulnerable parameter. Third, the server processes the input and executes the injected commands via the underlying shell. Finally, the attacker achieves remote code execution, enabling reconnaissance, payload staging, and further system compromise.\nAuthentication is not required to execute this attack, as the endpoint is exposed globally without access controls.\nPrivilege requirements are limited to whatever permissions the web server daemon possesses on the host operating system.\nPost-exploitation impact includes full system takeover, unauthorized data access, lateral movement, and the installation of malware or backdoors."
}