Description

Dell Cloud Disaster Recovery, versions 20.2 and prior, contain an Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability in the REST API. A high privileged attacker with remote access could potentially exploit this vulnerability, leading to Remote execution.

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "7.2",
  "pubDate": "2026-08-26T19:16:57.647Z",
  "pubdate": "2026-08-26T19:16:57.647Z",
  "executiveSummary": "Dell Cloud Disaster Recovery, versions 20.2 and prior, are susceptible to an OS Command Injection vulnerability residing within the REST API interface.\nThis vulnerability is categorized as an Improper Neutralization of Special Elements used in an OS Command (CWE-77).\nThe security flaw enables a remote attacker with high-level administrative privileges to execute arbitrary OS commands on the underlying host operating system.\nSuccessful exploitation bypasses intended application boundaries, resulting in full system compromise.\nThe risk is severe, as the vulnerability facilitates remote code execution (RCE), potentially leading to unauthorized data access, system disruption, or persistence within the disaster recovery environment.\nExploitation requires authenticated access with high-level privileges, limiting the initial attack surface to authorized users or compromised administrative accounts.",
  "technicalDetails": "The vulnerability originates from a failure to properly sanitize user-supplied input before passing it to system-level calls within the REST API of Dell Cloud Disaster Recovery versions 20.2 and prior.\nSpecifically, the application interface fails to neutralize shell metacharacters, allowing an attacker to escape the intended context of the API call and inject arbitrary OS commands.\nThe attack flow commences with the adversary interacting with the vulnerable REST API endpoints. By crafting a malicious payload containing shell control characters (e.g., ';', '&', '|', '`', '$( )'), the attacker can append unintended commands to the legitimate API request parameters.\nWhen the backend component processes these inputs, the command interpreter executes the injected instructions with the privileges of the application process.\nGiven that administrative privileges are required to interface with the vulnerable API methods, this vulnerability effectively allows a compromised or malicious high-privileged account to escalate their control to the operating system level.\nThe impact of successful exploitation includes, but is not limited to, the execution of arbitrary system commands, unauthorized modification of configurations, potential exfiltration of sensitive disaster recovery data, and the deployment of secondary malware or persistence mechanisms.\nSince the vulnerability exists within the REST API, the exposure is inherently network-facing, meaning any remote actor with the necessary authentication credentials can trigger the flaw.\nThe lack of input validation and output encoding in the API’s request handling logic serves as the primary technical root cause, indicating that the application blindly trusts data passed via API parameters before interacting with the system's command shell."
}