CVE-2023-39654
📋 TL;DR
This SQL injection vulnerability in abupy allows attackers to execute arbitrary SQL commands through the search_to_symbol_dict function. It affects all users of abupy version 0.4.0 and earlier who use this component. Successful exploitation could lead to data theft, modification, or deletion.
💻 Affected Systems
- abupy
📦 What is this software?
Abupy by Abuquant
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of the database backend, including data exfiltration, modification, deletion, or potential remote code execution if database functions allow it.
Likely Case
Unauthorized data access, data manipulation, or denial of service through database corruption.
If Mitigated
Limited impact with proper input validation and parameterized queries in place.
🎯 Exploit Status
SQL injection vulnerabilities are commonly weaponized, and public proof-of-concept exists in the references.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: unknown
Vendor Advisory: https://github.com/bbfamily/abu
Restart Required: No
Instructions:
1. Monitor the abupy GitHub repository for security updates. 2. Upgrade to a patched version when available. 3. Review and update any custom implementations using the vulnerable function.
🔧 Temporary Workarounds
Implement Input Validation
allAdd strict input validation to sanitize user inputs before passing to search_to_symbol_dict.
# Python example: Validate input contains only alphanumeric characters
import re
if not re.match('^[a-zA-Z0-9]+$', user_input):
raise ValueError('Invalid input')
Use Parameterized Queries
allModify the search_to_symbol_dict function to use parameterized queries instead of string concatenation.
# Python example using parameterized query with sqlite3
cursor.execute('SELECT * FROM symbols WHERE name = ?', (user_input,))
🧯 If You Can't Patch
- Disable or restrict access to the vulnerable search_to_symbol_dict function.
- Implement network segmentation and firewall rules to limit database access from application servers.
🔍 How to Verify
Check if Vulnerable:
Check if your abupy version is 0.4.0 or earlier and if you use the abupy.MarketBu.ABuSymbol.search_to_symbol_dict function.Check Version:
python -c "import abupy; print(abupy.__version__)"Verify Fix Applied:
Test the search_to_symbol_dict function with SQL injection payloads after applying fixes to ensure they are rejected.📡 Detection & Monitoring
Log Indicators:
- Unusual database queries from the application
- SQL syntax errors in application logs
- Multiple failed login attempts or unusual search patterns
Network Indicators:
- Unusual database traffic patterns
- SQL keywords in HTTP requests to the application
SIEM Query:
source=application_logs AND ("sql" OR "union" OR "select" OR "insert" OR "delete") AND process="abupy"