CVE-2023-44690
📋 TL;DR
CVE-2023-44690 is an inadequate encryption strength vulnerability in mycli 1.27.0 that allows attackers to decrypt sensitive configuration data. This affects users who store database credentials or other sensitive information in mycli configuration files. The vulnerability stems from weak encryption implementation in the config.py file.
💻 Affected Systems
- mycli
📦 What is this software?
Mycli by Dbcli
⚠️ Risk & Real-World Impact
Worst Case
Attackers gain access to database credentials, leading to full database compromise, data exfiltration, or lateral movement to other systems.
Likely Case
Local attackers or malware on the system can extract stored database credentials and potentially access databases with the privileges of the mycli user.
If Mitigated
With proper access controls and no sensitive data in config files, impact is limited to configuration file exposure without credential compromise.
🎯 Exploit Status
Exploitation requires local access to read the config.py file and knowledge of the weak encryption algorithm. Proof of concept is available in the GitHub issue.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.27.1 and later
Vendor Advisory: https://github.com/dbcli/mycli/issues/1131
Restart Required: No
Instructions:
1. Run: pip install --upgrade mycli
2. Verify installation with: mycli --version
3. Consider regenerating any stored credentials in configuration files.
🔧 Temporary Workarounds
Remove sensitive data from config
allClear any stored database credentials or sensitive information from mycli configuration files
rm ~/.myclirc
rm ~/.config/mycli/config
Use environment variables
allStore database credentials in environment variables instead of configuration files
export MYSQL_PWD='your_password'
export MYSQL_USER='your_username'
🧯 If You Can't Patch
- Ensure mycli configuration files have strict file permissions (chmod 600)
- Avoid storing any sensitive credentials in mycli configuration files
🔍 How to Verify
Check if Vulnerable:
Check if mycli version is 1.27.0: mycli --version | grep '1.27.0'Check Version:
mycli --versionVerify Fix Applied:
Verify mycli version is 1.27.1 or later: mycli --version📡 Detection & Monitoring
Log Indicators:
- Unusual access patterns to ~/.myclirc or ~/.config/mycli/config files
- Failed authentication attempts to databases using credentials from mycli user
Network Indicators:
- Database connections from mycli user's system to unexpected targets
SIEM Query:
source="*mycli*" OR file_path="*/.myclirc" OR file_path="*/.config/mycli/config"