CVE-2025-21111

7.5 HIGH

📋 TL;DR

Dell VxRail versions 8.0.000 through 8.0.311 store passwords in plaintext, allowing high-privileged attackers with local access to read sensitive credentials. This vulnerability exposes authentication information that could be used for further system compromise. Only organizations running affected VxRail versions are impacted.

💻 Affected Systems

Products:
  • Dell VxRail
Versions: 8.0.000 through 8.0.311
Operating Systems: VxRail-specific OS
Default Config Vulnerable: ⚠️ Yes
Notes: Requires local access and high privileges to exploit.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

An attacker with local administrative access could extract plaintext passwords, potentially gaining access to other systems or escalating privileges across the infrastructure.

🟠

Likely Case

A malicious insider or compromised administrator account could harvest credentials stored in plaintext, leading to lateral movement within the environment.

🟢

If Mitigated

With proper access controls and monitoring, the impact is limited to credential exposure without immediate system takeover.

🌐 Internet-Facing: LOW
🏢 Internal Only: HIGH

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: MEDIUM

Exploitation requires local access and high privileges, making it more suitable for insider threats or post-compromise scenarios.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Update to VxRail version 8.0.312 or later

Vendor Advisory: https://www.dell.com/support/kbdoc/en-us/000269958/dsa-2025-025-security-update-for-dell-vxrail-for-multiple-vulnerabilities

Restart Required: No

Instructions:

1. Review Dell advisory DSA-2025-025. 2. Apply the VxRail update to version 8.0.312 or later. 3. Verify the update was successful.

🔧 Temporary Workarounds

Restrict Local Access

all

Limit local administrative access to VxRail systems to only necessary personnel.

Enhanced Monitoring

all

Implement strict monitoring of local administrative activities on VxRail systems.

🧯 If You Can't Patch

  • Implement strict access controls to limit local administrative access to VxRail systems.
  • Monitor for unusual local administrative activity and credential access attempts.

🔍 How to Verify

Check if Vulnerable:

Check VxRail version via the VxRail Manager interface or CLI. If version is between 8.0.000 and 8.0.311, the system is vulnerable.

Check Version:

vxrail version

Verify Fix Applied:

Confirm VxRail version is 8.0.312 or later after applying the update.

📡 Detection & Monitoring

Log Indicators:

  • Unusual local administrative access to VxRail systems
  • Access to files containing credential information

Network Indicators:

  • N/A - local access vulnerability

SIEM Query:

source="vxrail" AND (event_type="local_login" OR file_access="*password*")

🔗 References

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