CVE-2025-46365

5.3 MEDIUM

📋 TL;DR

Dell CloudLink versions before 8.1.1 contain a command injection vulnerability that allows authenticated attackers to execute arbitrary commands on affected systems. This affects organizations using Dell CloudLink for cloud management and requires attacker authentication to exploit.

💻 Affected Systems

Products:
  • Dell CloudLink
Versions: All versions prior to 8.1.1
Operating Systems: Not specified - likely appliance-based
Default Config Vulnerable: ⚠️ Yes
Notes: Requires authenticated access to the CloudLink interface. Applies to all deployment modes (on-premises, cloud, hybrid).

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Full system compromise allowing attacker to execute arbitrary commands with system privileges, potentially leading to data theft, lateral movement, or ransomware deployment.

🟠

Likely Case

Limited command execution within the application context, potentially allowing data exfiltration, service disruption, or installation of backdoors.

🟢

If Mitigated

No impact if proper network segmentation, authentication controls, and patching are implemented.

🌐 Internet-Facing: MEDIUM - While authentication is required, exposed CloudLink instances could be targeted by credential stuffing or if credentials are compromised.
🏢 Internal Only: MEDIUM - Authenticated internal users or compromised accounts could exploit this for lateral movement or data exfiltration.

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: LOW - Command injection vulnerabilities typically have straightforward exploitation paths once authenticated.

Authentication requirement reduces immediate exploitability but doesn't eliminate risk from compromised accounts or insider threats.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 8.1.1

Vendor Advisory: https://www.dell.com/support/kbdoc/en-us/000384363/dsa-2025-374-security-update-for-dell-cloudlink-multiple-security-vulnerabilities

Restart Required: Yes

Instructions:

1. Backup current configuration. 2. Download Dell CloudLink version 8.1.1 from Dell support portal. 3. Follow Dell's upgrade documentation for your deployment type. 4. Apply the update. 5. Restart services/reboot as required. 6. Verify successful update.

🔧 Temporary Workarounds

Network Segmentation

all

Restrict access to CloudLink management interface to authorized administrative networks only.

Enhanced Authentication Controls

all

Implement multi-factor authentication, strong password policies, and account lockout mechanisms.

🧯 If You Can't Patch

  • Implement strict network access controls to limit CloudLink interface access to trusted IPs only
  • Enable detailed logging and monitoring for suspicious command execution patterns

🔍 How to Verify

Check if Vulnerable:

Check CloudLink version via web interface or CLI. Versions below 8.1.1 are vulnerable.

Check Version:

Check web interface dashboard or use CloudLink CLI command specific to your deployment

Verify Fix Applied:

Confirm version is 8.1.1 or higher and test that command injection attempts are properly sanitized/blocked.

📡 Detection & Monitoring

Log Indicators:

  • Unusual command execution patterns
  • Multiple failed authentication attempts followed by successful login
  • Suspicious process creation from CloudLink service

Network Indicators:

  • Unusual outbound connections from CloudLink server
  • Traffic to unexpected ports or IPs

SIEM Query:

source="cloudlink" AND (command="*;*" OR command="*|*" OR command="*`*" OR command="*$(*" OR command="*&*" OR command="*||*")

🔗 References

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