CVE-2020-13404
📋 TL;DR
This vulnerability allows remote command injection in the ATOS/Sips payment module for Magento. Attackers can execute arbitrary system commands on servers running vulnerable versions, potentially compromising the entire Magento installation. Affected systems are those using ATOS/Sips module versions 3.0.0 through 3.0.5.
💻 Affected Systems
- ATOS/Sips (Atos-Magento) community module for Magento
📦 What is this software?
Atos\/sips by Quadra Informatique
⚠️ Risk & Real-World Impact
Worst Case
Complete server compromise leading to data theft, ransomware deployment, or use as a foothold for lateral movement within the network.
Likely Case
Unauthorized command execution allowing data exfiltration, backdoor installation, or disruption of payment processing.
If Mitigated
Limited impact if proper network segmentation, least privilege, and monitoring are in place.
🎯 Exploit Status
Public exploit details available from security researchers. Command injection via module parameters.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 3.0.6 or later
Vendor Advisory: https://github.com/quadra-informatique/Atos-Magento/releases
Restart Required: No
Instructions:
1. Download version 3.0.6+ from GitHub releases. 2. Replace the existing ATOS/Sips module files. 3. Clear Magento cache. 4. Test payment functionality.
🔧 Temporary Workarounds
Disable ATOS/Sips Module
linuxTemporarily disable the vulnerable module until patching is possible.
php bin/magento module:disable Quadra_Informatique_Atos
Input Validation WAF Rule
allImplement web application firewall rules to block suspicious command injection patterns in ATOS/Sips requests.
🧯 If You Can't Patch
- Network segmentation to isolate Magento servers from critical infrastructure
- Implement strict egress filtering to limit outbound connections from Magento servers
🔍 How to Verify
Check if Vulnerable:
Check the module version in app/code/Quadra/Informatique/Atos/etc/module.xml or via Magento admin panel.Check Version:
grep -i version app/code/Quadra/Informatique/Atos/etc/module.xmlVerify Fix Applied:
Confirm module version is 3.0.6 or higher and test payment functionality works without errors.📡 Detection & Monitoring
Log Indicators:
- Unusual system commands in Magento or web server logs
- ATOS/Sips module requests with shell metacharacters
Network Indicators:
- Outbound connections from Magento server to unexpected destinations
- Unusual process execution patterns
SIEM Query:
source="magento.log" AND "ATOS" AND ("|" OR ";" OR "$" OR "`")🔗 References
- https://github.com/quadra-informatique/Atos-Magento/releases
- https://sysdream.com/news/lab/
- https://sysdream.com/news/lab/2020-06-09-cve-2020-13404-remote-system-command-injection-in-atos-magento-module/
- https://github.com/quadra-informatique/Atos-Magento/releases
- https://sysdream.com/news/lab/
- https://sysdream.com/news/lab/2020-06-09-cve-2020-13404-remote-system-command-injection-in-atos-magento-module/
