CVE-2025-48501

9.8 CRITICAL

📋 TL;DR

This CVE describes an OS command injection vulnerability in Nimesa Backup and Recovery software versions 2.3 and 2.4. Attackers can execute arbitrary operating system commands on the server where the product is installed, potentially leading to complete system compromise. Organizations using these vulnerable versions are affected.

💻 Affected Systems

Products:
  • Nimesa Backup and Recovery
Versions: v2.3 and v2.4
Operating Systems: All supported OS platforms
Default Config Vulnerable: ⚠️ Yes
Notes: All installations of affected versions are vulnerable regardless of configuration.

⚠️ Manual Verification Required

This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.

Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).

🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.

Recommended Actions:
  1. Review the CVE details at NVD
  2. Check vendor security advisories for your specific version
  3. Test if the vulnerability is exploitable in your environment
  4. Consider updating to the latest version as a precaution

⚠️ Risk & Real-World Impact

🔴

Worst Case

Full system compromise with attacker gaining root/admin privileges, data exfiltration, ransomware deployment, and persistent backdoor installation.

🟠

Likely Case

Initial foothold leading to privilege escalation, lateral movement within the network, and data theft from backup repositories.

🟢

If Mitigated

Limited impact if proper network segmentation, least privilege principles, and monitoring are in place, though system integrity may still be compromised.

🌐 Internet-Facing: HIGH
🏢 Internal Only: HIGH

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

Command injection vulnerabilities typically have low exploitation complexity, especially when unauthenticated.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: v2.5 or later

Vendor Advisory: https://aws.amazon.com/marketplace/seller-profile?id=08fb48d1-5d60-4feb-93c6-c0c219278a2c

Restart Required: Yes

Instructions:

1. Download the latest version from the vendor. 2. Backup current configuration. 3. Stop the Nimesa service. 4. Install the updated version. 5. Restart the service. 6. Verify functionality.

🔧 Temporary Workarounds

Network Segmentation

all

Isolate Nimesa servers from internet and restrict internal network access

Input Validation Enhancement

all

Implement additional input validation at network perimeter if possible

🧯 If You Can't Patch

  • Immediately isolate affected systems from network access
  • Implement strict network controls and monitor for suspicious command execution

🔍 How to Verify

Check if Vulnerable:

Check Nimesa version via web interface or configuration files

Check Version:

Check web interface dashboard or consult product documentation for version command

Verify Fix Applied:

Verify version is 2.5 or higher and test backup functionality

📡 Detection & Monitoring

Log Indicators:

  • Unusual command execution in system logs
  • Suspicious process creation from Nimesa service
  • Failed authentication attempts followed by command execution

Network Indicators:

  • Unexpected outbound connections from Nimesa server
  • Command and control traffic patterns

SIEM Query:

source="nimesa" AND (process_execution OR command_injection OR suspicious_command)

🔗 References

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