CVE-2026-70419 in Cloud Disaster Recovery
Summary
by MITRE • 08/26/2026
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. A high privileged attacker with remote access could potentially exploit this vulnerability, leading to Command execution.
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Analysis
by VulDB Data Team • 08/26/2026
The identified security flaw resides within Dell Cloud Disaster Recovery software, specifically affecting versions 20.2 and earlier releases. This vulnerability is classified as an OS Command Injection, which corresponds to Common Weakness Enumeration identifier CWE-78. The core technical issue stems from the application's failure to properly neutralize or sanitize special elements that are used in operating system commands. In typical software architecture, when user-supplied input is passed directly to a shell interpreter without adequate validation, an attacker can manipulate this input to alter the intended command structure. This lack of rigorous input sanitization allows for the injection of arbitrary OS-level commands into the execution context of the application.
The operational impact of this vulnerability is severe due to the privilege requirements and access vector involved. Exploitation requires a high-privileged attacker who already possesses remote network access to the target system. While the requirement for elevated privileges might seem like a mitigating factor, it significantly lowers the barrier for exploitation in environments where administrative credentials have been compromised or are accessible via lateral movement from another breached host. Once an attacker achieves this level of access and successfully injects malicious commands, they can execute arbitrary code with the same permissions as the vulnerable application process. This typically results in a complete compromise of the underlying operating system, allowing for data exfiltration, installation of persistent backdoors, or further lateral movement within the network infrastructure.
From an offensive security perspective, this vulnerability aligns with several techniques documented in the MITRE ATT&CK framework. The initial exploitation phase maps to T1059 Command and Scripting Interpreter, as it involves executing system-level commands through a compromised application interface. If the attacker uses specific scripting languages or interpreters during the injection process, additional sub-techniques such as T1059.004 Unix Shell or T1059.007 PowerShell may apply depending on the target environment. The ultimate goal of achieving remote code execution often leads to techniques like T1053 Scheduled Task/Job for persistence or T1027 Obfuscated Files or Information if obfuscation is used during the attack chain, although the primary classification remains command injection.
To mitigate this risk, immediate action should be taken by upgrading Dell Cloud Disaster Recovery to a version later than 20.2 where these input validation issues have been addressed by the vendor. In scenarios where an upgrade is not immediately feasible, defense-in-depth strategies must be employed. This includes implementing strict network segmentation to limit remote access to only authorized administrative IPs and enforcing multi-factor authentication for all privileged accounts interacting with the system. Additionally, deploying Web Application Firewalls or API gateways that can detect and block common command injection patterns may provide a temporary layer of protection. Regular security audits focusing on input validation practices across all application interfaces are essential to prevent similar vulnerabilities from being introduced in future updates or custom integrations.