CVE-2025-45617
📋 TL;DR
This vulnerability allows attackers to bypass access controls in the /user/list endpoint of production_ssm v0.0.1-SNAPSHOT, enabling unauthorized access to sensitive user information. Any system running this specific snapshot version is affected. Attackers can exploit this by sending specially crafted payloads to the vulnerable endpoint.
💻 Affected Systems
- production_ssm
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of all user data including personally identifiable information, credentials, and system access details, potentially leading to identity theft, account takeover, and lateral movement within the network.
Likely Case
Unauthorized access to user lists containing usernames, email addresses, and potentially other profile information, enabling reconnaissance for further attacks.
If Mitigated
No data exposure occurs as proper authentication and authorization controls prevent unauthorized access to the user list endpoint.
🎯 Exploit Status
Based on CWE-284 (Improper Access Control) and the description mentioning crafted payloads, exploitation likely requires sending HTTP requests to the vulnerable endpoint without proper authentication.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not specified
Vendor Advisory: https://github.com/megagao/production_ssm/issues/33
Restart Required: Yes
Instructions:
1. Check the GitHub issue for any available fixes or updates. 2. Upgrade to a patched version if released. 3. If no patch exists, implement workarounds or consider alternative software. 4. Restart the application after any changes.
🔧 Temporary Workarounds
Network Access Restriction
linuxRestrict network access to the /user/list endpoint using firewall rules or application configuration.
# Example iptables rule to block access to port 8080/user/list
iptables -A INPUT -p tcp --dport 8080 -m string --string "/user/list" --algo bm -j DROP
Authentication Enforcement
allConfigure the application to require valid authentication for the /user/list endpoint.
# Modify application security configuration to add authentication requirement for /user/list
🧯 If You Can't Patch
- Implement network segmentation to isolate the vulnerable system from untrusted networks.
- Deploy a web application firewall (WAF) with rules to block unauthorized access to /user/list endpoints.
🔍 How to Verify
Check if Vulnerable:
Send an unauthenticated HTTP GET request to http://[target]:[port]/user/list and check if user data is returned without authentication.Check Version:
Check the application's version through its interface, configuration files, or by examining the JAR/WAR file metadata.Verify Fix Applied:
After implementing fixes, repeat the unauthenticated request to /user/list and verify it returns an authentication error or no data.📡 Detection & Monitoring
Log Indicators:
- Unusual access patterns to /user/list endpoint
- Requests to /user/list from unauthenticated sessions or unexpected IP addresses
- Error logs showing authentication failures followed by successful data access
Network Indicators:
- HTTP GET requests to /user/list without authentication headers
- Unusual data volume being transferred from the application server
SIEM Query:
source="application_logs" AND (uri_path="/user/list" AND NOT (user_authenticated="true" OR auth_token EXISTS))