CVE-2025-24385: Dell Unity OS Command Injection Vulnerability

CVE-2025-24385 Overview

CVE-2025-24385 is an OS Command Injection vulnerability [CWE-78] affecting Dell Unity Operating Environment versions 5.4 and prior. The flaw stems from improper neutralization of special elements used in operating system commands. A low-privileged attacker with local access to an affected Dell Unity storage system can inject arbitrary commands into the underlying OS. Successful exploitation results in arbitrary code execution and elevation of privileges. Dell published advisory DSA-2025-116 addressing this issue alongside other vulnerabilities in Dell Unity, Dell UnityVSA, and Dell Unity XT storage platforms.

Critical Impact
An authenticated local attacker can execute arbitrary OS commands and escalate privileges on Dell Unity storage appliances, compromising confidentiality, integrity, and availability of stored data.

Affected Products

Dell Unity Operating Environment version 5.4 and prior
Dell UnityVSA (virtual storage appliance variants running affected OE)
Dell Unity XT platforms running affected OE versions

Discovery Timeline

2025-03-28 - CVE-2025-24385 published to the National Vulnerability Database (NVD)
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2025-24385

Vulnerability Analysis

CVE-2025-24385 is classified under [CWE-78], Improper Neutralization of Special Elements used in an OS Command. Dell Unity Operating Environment passes attacker-influenced input into an operating system command context without sufficient sanitization. An attacker with local, low-privileged access can insert shell metacharacters or command separators to break out of the intended command structure. The resulting execution occurs in the context of the invoking system process, which enables privilege elevation on the storage controller.

Because Dell Unity systems manage enterprise storage arrays, code execution on the appliance places block, file, and replication services at direct risk. Attackers gaining root-equivalent access can manipulate LUN configurations, exfiltrate stored data, tamper with snapshots, or disrupt replication targets.

Root Cause

The root cause is insufficient input validation and neutralization before user-supplied data is concatenated into an OS command string. Command construction that relies on shell interpretation without argument-vector isolation allows characters such as ;, |, &, and backticks to change the executed command. Dell has not publicly disclosed the specific vulnerable component or code path.

Attack Vector

Exploitation requires local access to the Dell Unity system with valid low-privileged credentials. No user interaction is required. The attacker submits crafted input to a management interface or utility that forwards the value into a shell-invoked command, causing the injected payload to run with elevated privileges. Refer to the Dell Security Update DSA-2025-116 for the vendor's technical description.

// No public proof-of-concept has been released for CVE-2025-24385.
// Refer to Dell advisory DSA-2025-116 for authoritative technical details.

Detection Methods for CVE-2025-24385

Indicators of Compromise

Unexpected child processes spawned by Dell Unity management daemons, particularly shells (sh, bash) invoked with argument strings containing ;, |, &&, or backtick sequences.
New or modified files in system directories, or unexpected cron entries and SUID binaries on the storage controller.
Authentication events from low-privileged Unity accounts immediately followed by root-context command execution in system logs.

Detection Strategies

Review Dell Unity audit logs and OS-level command history for CLI parameters containing shell metacharacters submitted by non-administrative accounts.
Compare running Dell Unity Operating Environment version against the fixed release listed in DSA-2025-116; systems on 5.4 or prior are exposed.
Correlate local login events with subsequent process-execution telemetry to identify privilege transitions inconsistent with normal administrative workflow.

Monitoring Recommendations

Forward Dell Unity syslog, audit, and command-execution logs to a central SIEM for retention and correlation.
Alert on any successful privilege escalation events originating from service or read-only accounts on storage appliances.
Monitor management-network traffic for unusual sessions targeting the Unity management IP outside of change windows.

How to Mitigate CVE-2025-24385

Immediate Actions Required

Apply the Dell Unity Operating Environment update referenced in Dell Security Update DSA-2025-116 to a fixed release above 5.4.
Audit all local accounts on affected Unity, UnityVSA, and Unity XT systems and remove or rotate credentials that are no longer required.
Restrict management-plane network access to a dedicated administrative VLAN or jump host.

Patch Information

Dell has released fixed versions of Dell Unity Operating Environment addressing CVE-2025-24385 as part of advisory DSA-2025-116. The advisory covers Dell Unity, Dell UnityVSA, and Dell Unity XT products. Administrators should consult the vendor advisory for the exact fixed OE build number applicable to their platform and follow Dell's upgrade procedure.

Workarounds

Enforce least privilege on all Dell Unity local and directory-integrated accounts to reduce the pool of users capable of exploiting the flaw.
Limit shell and CLI access on the storage controller to a narrowly scoped administrative group until the patch is deployed.
Isolate the Unity management interface behind network access controls to prevent lateral movement from compromised endpoints toward the appliance.

bash

# Example: restrict management access to Dell Unity via firewall ACL
# Replace <mgmt_ip> with the Unity management IP and <admin_subnet> with your admin range
iptables -A INPUT -p tcp -s <admin_subnet> -d <mgmt_ip> --dport 443 -j ACCEPT
iptables -A INPUT -p tcp -d <mgmt_ip> --dport 443 -j DROP