CVE-2021-36302
📋 TL;DR
This vulnerability allows a remote attacker with standard JEA (Just Enough Administration) credentials to escalate privileges and potentially take over Dell EMC Integrated System for Microsoft Azure Stack Hub. All versions of this system are affected. Attackers could gain full administrative control of the Azure Stack Hub environment.
💻 Affected Systems
- Dell EMC Integrated System for Microsoft Azure Stack Hub
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system takeover with administrative privileges, allowing data theft, service disruption, and lateral movement within the Azure Stack Hub environment.
Likely Case
Privilege escalation leading to unauthorized administrative access, configuration changes, and potential data exposure.
If Mitigated
Limited impact if proper network segmentation, access controls, and monitoring are in place to detect and block exploitation attempts.
🎯 Exploit Status
Exploitation requires valid JEA credentials but is described as potentially exploitable by remote malicious users.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Apply Dell Security Advisory DSA-2021-178 update
Restart Required: Yes
Instructions:
1. Review Dell Security Advisory DSA-2021-178. 2. Download the security update from Dell support. 3. Apply the update following Dell's deployment procedures. 4. Restart affected systems as required.
🔧 Temporary Workarounds
Restrict JEA Access
allLimit standard JEA credential access to only trusted users and systems.
Network Segmentation
allIsolate Azure Stack Hub management interfaces from untrusted networks.
🧯 If You Can't Patch
- Implement strict access controls and monitor all JEA credential usage
- Segment the Azure Stack Hub management network and restrict remote access
🔍 How to Verify
Check if Vulnerable:
Check if your system is running Dell EMC Integrated System for Microsoft Azure Stack Hub without the DSA-2021-178 update applied.Check Version:
Check Dell system management tools or Azure Stack Hub administrative interfaces for installed updates and version information.Verify Fix Applied:
Verify the DSA-2021-178 security update has been successfully installed and systems have been restarted.📡 Detection & Monitoring
Log Indicators:
- Unusual JEA credential usage patterns
- Privilege escalation attempts in system logs
- Unauthorized administrative actions
Network Indicators:
- Suspicious connections to Azure Stack Hub management interfaces
- Unexpected authentication attempts
SIEM Query:
Search for JEA authentication events followed by privilege escalation or administrative command execution within short timeframes.🔗 References
- https://www.dell.com/support/kbdoc/en-us/000191165/dsa-2021-178-dell-emc-integrated-solution-for-microsoft-azure-stack-hub-security-update-for-a-just-enough-administration-jea-vulnerability
- https://www.dell.com/support/kbdoc/en-us/000191165/dsa-2021-178-dell-emc-integrated-solution-for-microsoft-azure-stack-hub-security-update-for-a-just-enough-administration-jea-vulnerability
