CVE-2025-37093: HPE StoreOnce Authentication Bypass Flaw

CVE-2025-37093 Overview

An authentication bypass vulnerability exists in HPE StoreOnce Software. This critical security flaw allows unauthenticated remote attackers to bypass authentication mechanisms, potentially gaining unauthorized access to the backup and recovery management system. HPE StoreOnce systems are enterprise-grade data protection solutions used for backup, deduplication, and disaster recovery operations, making this vulnerability particularly concerning for organizations relying on these systems to protect critical data.

Critical Impact

Unauthenticated attackers can bypass authentication controls to gain unauthorized access to HPE StoreOnce systems, potentially compromising backup data integrity, confidentiality, and availability across the enterprise environment.

Affected Products

• HPE StoreOnce System

Discovery Timeline

• 2025-06-02 - CVE-2025-37093 published to NVD
• 2025-07-02 - Last updated in NVD database

Technical Details for CVE-2025-37093

Vulnerability Analysis

This vulnerability is classified under CWE-287 (Improper Authentication), indicating a fundamental flaw in how the HPE StoreOnce software validates user credentials or session tokens. Authentication bypass vulnerabilities of this nature typically allow attackers to circumvent login mechanisms entirely, gaining access to protected functionality without providing valid credentials.

The network-accessible nature of this vulnerability means that attackers can exploit it remotely without requiring any prior access or privileges on the target system. No user interaction is necessary for exploitation, and the attack complexity is low, making this vulnerability straightforward to exploit once identified.

Successful exploitation could result in complete compromise of the confidentiality, integrity, and availability of the HPE StoreOnce system. Given that these systems manage enterprise backup operations, an attacker could potentially access, modify, or delete critical backup data, compromising an organization's disaster recovery capabilities.

Root Cause

The vulnerability stems from improper authentication handling (CWE-287) within the HPE StoreOnce Software. This weakness occurs when the application fails to properly verify the identity of users attempting to access protected resources. The specific implementation flaw allows authentication checks to be bypassed, enabling unauthorized access to the system's management interfaces and functionality.

Attack Vector

The attack vector is network-based, allowing remote exploitation. An attacker with network access to the HPE StoreOnce management interface can send specially crafted requests that bypass the authentication mechanism. The vulnerability requires no prior authentication, no special privileges, and no user interaction, making it highly accessible to potential attackers.

Organizations exposing HPE StoreOnce management interfaces to untrusted networks are at heightened risk. The attack can be executed directly against the management interface without requiring any form of credential compromise or social engineering.

Detection Methods for CVE-2025-37093

Indicators of Compromise

• Unexpected administrative sessions or logins to the HPE StoreOnce management interface without corresponding valid authentication events
• Anomalous API requests or management commands issued without proper session establishment
• Unusual access patterns to backup data or configuration changes outside normal operational windows
• Authentication logs showing requests that bypass expected login workflows

Detection Strategies

• Monitor HPE StoreOnce authentication logs for sessions initiated without proper credential validation
• Implement network traffic analysis to identify requests to management interfaces that lack expected authentication headers or tokens
• Deploy anomaly detection for administrative actions that occur without preceding successful login events
• Configure alerts for configuration changes or data access operations during non-business hours

Monitoring Recommendations

• Enable verbose logging on HPE StoreOnce systems to capture detailed authentication and session information
• Integrate HPE StoreOnce logs with SIEM solutions for centralized monitoring and correlation
• Establish baseline metrics for normal authentication patterns and alert on deviations
• Regularly audit user sessions and administrative activity for signs of unauthorized access

How to Mitigate CVE-2025-37093

Immediate Actions Required

• Apply the security patch from HPE immediately to all affected StoreOnce systems
• Restrict network access to HPE StoreOnce management interfaces to trusted administrative networks only
• Implement additional network segmentation to isolate backup infrastructure from general network traffic
• Review authentication logs for any signs of unauthorized access that may have occurred prior to patching

Patch Information

HPE has released a security advisory addressing this vulnerability. Organizations should consult the HPE Security Advisory for detailed patch information and upgrade instructions. Applying the vendor-provided security update is the definitive remediation for this vulnerability.

Workarounds

• Implement strict network access controls to limit connectivity to HPE StoreOnce management interfaces to authorized administrative workstations only
• Deploy a VPN or jump server requirement for all administrative access to backup infrastructure
• Enable additional logging and monitoring to detect potential exploitation attempts while awaiting patch deployment
• Consider temporarily disabling remote management access if operationally feasible until the patch can be applied

# Network access restriction example (firewall configuration)
# Restrict access to HPE StoreOnce management interface to admin network only
# Replace ADMIN_NETWORK with your authorized administrative subnet
# Replace STOREONCE_IP with your HPE StoreOnce management IP address

# Example iptables rules (Linux firewall)
iptables -A INPUT -s ADMIN_NETWORK -d STOREONCE_IP -p tcp --dport 443 -j ACCEPT
iptables -A INPUT -d STOREONCE_IP -p tcp --dport 443 -j DROP