CVE-2025-43943 in Cloud Disaster Recovery
Summary
by MITRE • 09/25/2025
Dell Cloud Disaster Recovery, version(s) prior to 19.20, contain(s) an Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability. A high privileged attacker with local access could potentially exploit this vulnerability to execute arbitrary commands with root privileges.
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Analysis
by VulDB Data Team • 09/25/2025
The vulnerability identified as CVE-2025-43943 affects Dell Cloud Disaster Recovery software versions prior to 19.20 and represents a critical operating system command injection flaw that could enable attackers to execute arbitrary code with elevated privileges. This vulnerability resides within the command execution handling mechanisms of the disaster recovery platform, where insufficient input validation and sanitization allows malicious commands to be injected and subsequently executed within the operating system context. The flaw specifically manifests when the application processes user-supplied input without proper neutralization of special elements that could be interpreted as operating system commands by the underlying shell or command processor.
The technical implementation of this vulnerability stems from improper input validation within the application's command processing pipeline, which fails to adequately sanitize or escape special characters that could be interpreted by the operating system. According to CWE-77, this represents a classic command injection vulnerability where attacker-controlled input flows directly into system command execution contexts without proper sanitization. The vulnerability is particularly concerning because it requires only local access from a high-privileged attacker, meaning that an attacker who has already gained administrative access to the system could leverage this flaw to escalate their privileges further or execute arbitrary code with root-level permissions. The attack vector typically involves crafting malicious input that contains shell metacharacters or command separators that are then passed to system commands without proper filtering.
The operational impact of this vulnerability extends beyond simple command execution, as it provides a potential pathway for attackers to compromise the entire disaster recovery infrastructure. In enterprise environments where Dell Cloud Disaster Recovery is deployed for critical backup and recovery operations, successful exploitation could result in complete system compromise, data exfiltration, or disruption of business continuity processes. The vulnerability affects the core functionality of the disaster recovery platform, potentially allowing attackers to manipulate backup operations, modify recovery procedures, or gain unauthorized access to sensitive data stored within the recovery environment. This type of vulnerability aligns with ATT&CK technique T1059.001 for command and scripting interpreter, where adversaries use legitimate system tools to execute malicious commands and establish persistence within the target environment.
Mitigation strategies for CVE-2025-43943 should prioritize immediate software updates to version 19.20 or later, which contains the necessary patches to address the command injection vulnerability. Organizations should implement comprehensive input validation and sanitization measures across all application interfaces that process user input, particularly those that interface with system commands or shell operations. The principle of least privilege should be enforced to limit the impact of potential exploitation, ensuring that applications operate with minimal required permissions. Network segmentation and access controls should be implemented to restrict local access to the disaster recovery system, while monitoring solutions should be deployed to detect anomalous command execution patterns. Additionally, organizations should conduct thorough security assessments of their disaster recovery environments to identify similar vulnerabilities in other components and ensure that all system components are regularly updated and patched according to vendor security advisories and industry best practices for maintaining secure system configurations.