CVE-2023-37400
📋 TL;DR
IBM Aspera Faspex versions 5.0.0 through 5.0.7 have a local privilege escalation vulnerability due to insecure credential storage, allowing a local user to gain elevated privileges. This affects systems running these vulnerable versions, potentially compromising the integrity and confidentiality of the Aspera Faspex environment.
💻 Affected Systems
- IBM Aspera Faspex
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
A local attacker gains administrative access to the Aspera Faspex system, leading to complete compromise of data, unauthorized access to sensitive files, and potential lateral movement within the network.
Likely Case
A local user with limited privileges escalates to higher privileges, enabling unauthorized access to restricted functions or data within the Aspera Faspex application.
If Mitigated
With proper access controls and monitoring, impact is limited to isolated privilege escalation within the application, but data exposure risk remains if credentials are misused.
🎯 Exploit Status
Exploitation requires local access to the system, but details are not publicly disclosed; complexity is low due to the nature of insecure storage.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 5.0.8 or later
Vendor Advisory: https://www.ibm.com/support/pages/node/7148631
Restart Required: Yes
Instructions:
1. Download the latest version (5.0.8 or higher) from IBM's support site. 2. Backup current configuration and data. 3. Install the update following IBM's installation guide. 4. Restart the Aspera Faspex service to apply changes.
🔧 Temporary Workarounds
Restrict Local Access
allLimit local user access to the Aspera Faspex system to reduce attack surface.
Use OS-specific access controls (e.g., sudoers, user groups) to restrict non-essential users.
🧯 If You Can't Patch
- Implement strict access controls to minimize local user privileges and monitor for suspicious activity.
- Isolate the Aspera Faspex system from critical network segments to contain potential breaches.
🔍 How to Verify
Check if Vulnerable:
Check the Aspera Faspex version via the admin interface or by running the version command in the installation directory.Check Version:
On Linux: cat /opt/aspera/faspex/version.txt or similar path; on Windows: check the installation directory for version files.Verify Fix Applied:
Verify the version is 5.0.8 or higher and confirm no unauthorized privilege changes in system logs.📡 Detection & Monitoring
Log Indicators:
- Unusual privilege escalation events in Aspera Faspex logs or system audit logs.
Network Indicators:
- None, as this is a local exploit with no network traffic indicators.
SIEM Query:
Search for events like 'privilege escalation' or 'unauthorized access' in Aspera Faspex application logs.