CVE-2019-5402
📋 TL;DR
A remote authorization bypass vulnerability in HPE 3PAR StoreServ Management and Core Software allows attackers to bypass authentication mechanisms and gain unauthorized access to storage management functions. This affects all systems running versions prior to 3.5.0.1 of the HPE 3PAR StoreServ software.
💻 Affected Systems
- HPE 3PAR StoreServ Management and Core Software Media
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of storage infrastructure, allowing attackers to delete, modify, or exfiltrate sensitive data, disrupt storage operations, or use the system as a pivot point to attack other network resources.
Likely Case
Unauthorized access to storage management functions, potentially leading to data exposure, configuration changes, or service disruption.
If Mitigated
Limited impact if proper network segmentation and access controls prevent external access to management interfaces.
🎯 Exploit Status
The vulnerability allows remote authorization bypass, suggesting relatively straightforward exploitation once the attack vector is identified.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 3.5.0.1 or later
Vendor Advisory: https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbst03946en_us
Restart Required: Yes
Instructions:
1. Download the 3.5.0.1 or later software update from HPE Support. 2. Follow HPE's documented upgrade procedures for 3PAR StoreServ systems. 3. Apply the update during a maintenance window as system restart is required. 4. Verify the update completed successfully.
🔧 Temporary Workarounds
Network Segmentation
allRestrict access to the 3PAR management interface to only trusted administrative networks
Access Control Lists
allImplement strict firewall rules to limit which IP addresses can access the management interface
🧯 If You Can't Patch
- Implement strict network segmentation to isolate the 3PAR management interface from untrusted networks
- Monitor all access attempts to the management interface and alert on any unauthorized access patterns
🔍 How to Verify
Check if Vulnerable:
Check the software version via the 3PAR management interface or CLI. If version is below 3.5.0.1, the system is vulnerable.Check Version:
showversion (from 3PAR CLI) or check System Information in the management GUIVerify Fix Applied:
After patching, verify the software version shows 3.5.0.1 or higher and test that authentication mechanisms are functioning properly.📡 Detection & Monitoring
Log Indicators:
- Failed authentication attempts followed by successful access
- Unauthorized access to management functions from unexpected IP addresses
- Configuration changes from unauthenticated or unauthorized users
Network Indicators:
- Unusual traffic patterns to the management interface
- Access attempts from non-administrative networks
- Authentication bypass attempts
SIEM Query:
source="3par*" AND (event_type="auth_failure" OR event_type="config_change") AND src_ip NOT IN (admin_networks)