CVE-2024-39025
📋 TL;DR
CVE-2024-39025 is an incorrect access control vulnerability in the /users endpoint of Cpacker MemGPT v0.3.17 that allows attackers to access sensitive user data without proper authorization. This affects all deployments running the vulnerable version of Cpacker MemGPT. Attackers can exploit this to view potentially confidential information stored in user accounts.
💻 Affected Systems
- Cpacker MemGPT
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Attackers gain unauthorized access to all user data including potentially sensitive personal information, credentials, or private content, leading to data breach and privacy violations.
Likely Case
Unauthenticated or low-privileged users access user data they shouldn't have permission to view, compromising data confidentiality.
If Mitigated
With proper network segmentation and access controls, impact is limited to authorized users accessing only their own data as intended.
🎯 Exploit Status
The vulnerability involves improper access control on an API endpoint, making exploitation straightforward once the endpoint is discovered.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: v0.3.18 or later
Vendor Advisory: https://github.com/letta-ai/letta/releases/tag/0.3.17
Restart Required: Yes
Instructions:
1. Upgrade to Cpacker MemGPT v0.3.18 or later. 2. Restart the MemGPT service. 3. Verify the /users endpoint now requires proper authentication and authorization.
🔧 Temporary Workarounds
Network Access Restriction
linuxRestrict network access to the MemGPT service to only trusted IP addresses or networks.
# Example using iptables: iptables -A INPUT -p tcp --dport [MEMGPT_PORT] -s [TRUSTED_IP] -j ACCEPT
# iptables -A INPUT -p tcp --dport [MEMGPT_PORT] -j DROP
Web Application Firewall Rule
allConfigure WAF to block unauthorized access to /users endpoint.
# WAF specific configuration depends on vendor
🧯 If You Can't Patch
- Implement strict network segmentation to isolate the MemGPT instance from untrusted networks.
- Deploy a reverse proxy with authentication and authorization checks before forwarding requests to the /users endpoint.
🔍 How to Verify
Check if Vulnerable:
Attempt to access the /users endpoint without proper authentication. If user data is returned, the system is vulnerable.Check Version:
Check the MemGPT version in the application interface or configuration files.Verify Fix Applied:
After patching, attempt to access the /users endpoint without authentication. It should return an authentication error or no data.📡 Detection & Monitoring
Log Indicators:
- Unauthorized access attempts to /users endpoint
- Multiple failed authentication attempts followed by successful /users access
Network Indicators:
- Unusual traffic patterns to /users endpoint from unexpected sources
- HTTP requests to /users without proper authentication headers
SIEM Query:
source="memgpt.logs" AND (url_path="/users" AND NOT (user_authenticated="true" AND user_authorized="true"))