CVE-2021-22311
📋 TL;DR
This CVE describes an improper privilege assignment vulnerability in Huawei ManageOne management software where processes can run with higher privileges than intended. Successful exploitation could allow authenticated users to perform operations beyond their authorized permissions. Affected systems include Huawei ManageOne versions 8.0.0 and 8.0.1.
💻 Affected Systems
- Huawei ManageOne
📦 What is this software?
Manageone by Huawei
Manageone by Huawei
⚠️ Risk & Real-World Impact
Worst Case
Privilege escalation to administrative level allowing complete system compromise, data exfiltration, or service disruption.
Likely Case
Authenticated users gaining unauthorized access to sensitive functions or data they shouldn't have permissions for.
If Mitigated
Limited impact with proper access controls, network segmentation, and monitoring in place.
🎯 Exploit Status
Requires authenticated access. No public exploit code available. Huawei advisory provides limited technical details.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Update to version 8.0.2 or later
Vendor Advisory: https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20210203-01-manageone-en
Restart Required: Yes
Instructions:
1. Download the patch from Huawei support portal. 2. Follow Huawei's official upgrade guide for ManageOne. 3. Apply the patch to all affected systems. 4. Restart services as required.
🔧 Temporary Workarounds
Access Restriction
allRestrict access to ManageOne interface to only authorized administrative users
Network Segmentation
allIsolate ManageOne systems from general network access
🧯 If You Can't Patch
- Implement strict access controls and least privilege principles for all ManageOne users
- Enable detailed logging and monitoring for privilege escalation attempts
🔍 How to Verify
Check if Vulnerable:
Check ManageOne version via web interface or CLI: System > About or using Huawei management toolsCheck Version:
Specific commands not provided in advisory. Use Huawei-provided management tools or web interface.Verify Fix Applied:
Verify version is 8.0.2 or later and check Huawei security bulletin for patch confirmation📡 Detection & Monitoring
Log Indicators:
- Unusual privilege escalation attempts
- Unauthorized access to administrative functions
- Processes running with unexpected privileges
Network Indicators:
- Unusual authentication patterns to ManageOne interface
- Access from unauthorized IP addresses
SIEM Query:
source="manageone" AND (event_type="privilege_escalation" OR user_permission_change="true")