CVE-2019-14281
📋 TL;DR
CVE-2019-14281 is a supply chain attack where the datagrid Ruby gem version 1.0.6 contained a malicious backdoor inserted by a third party. This allows remote code execution on any system using this compromised gem version. All Ruby applications using datagrid 1.0.6 from RubyGems.org are affected.
💻 Affected Systems
- datagrid Ruby gem
📦 What is this software?
Datagrid by Datagrid Project
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise allowing attackers to execute arbitrary code, steal data, deploy ransomware, or pivot to other systems.
Likely Case
Remote code execution leading to data theft, cryptocurrency mining, or botnet enrollment.
If Mitigated
Limited impact if proper network segmentation and least privilege principles are implemented.
🎯 Exploit Status
The backdoor is built into the gem itself, making exploitation trivial once the malicious package is installed.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Remove version 1.0.6 completely; use version 1.0.5 or later versions (1.0.7+)
Vendor Advisory: https://github.com/rubygems/rubygems.org/issues/2072
Restart Required: Yes
Instructions:
1. Remove datagrid 1.0.6 from your Gemfile. 2. Run 'bundle update datagrid' to install a safe version. 3. Restart your Ruby application server. 4. Verify no 1.0.6 version remains in Gemfile.lock.
🔧 Temporary Workarounds
Immediate gem removal
allRemove the compromised gem version from your system
gem uninstall datagrid -v 1.0.6
bundle clean --force
Gem source verification
allVerify gem integrity and source before installation
gem cert --add <trusted-cert>
gem install datagrid -P HighSecurity
🧯 If You Can't Patch
- Network segmentation: Isolate affected systems from critical networks
- Implement strict egress filtering to prevent command and control communication
🔍 How to Verify
Check if Vulnerable:
Check Gemfile.lock for 'datagrid (1.0.6)' or run 'gem list datagrid' and look for version 1.0.6Check Version:
gem list datagrid | grep datagridVerify Fix Applied:
Verify datagrid version is NOT 1.0.6 in Gemfile.lock and 'gem list datagrid' output📡 Detection & Monitoring
Log Indicators:
- Unusual Ruby process execution patterns
- Suspicious network connections from Ruby processes
- Gem installation logs showing datagrid 1.0.6
Network Indicators:
- Outbound connections to unknown IPs from Ruby applications
- Unusual HTTP requests from application servers
SIEM Query:
process:ruby AND (parent_process:bundle OR parent_process:gem) AND cmdline:*datagrid*1.0.6*