🔒 Security Fix: Upgrade SnakeYaml to Prevent Remote Code Execution (CVE-2022-1471)

[ana-ai-sde]

Security Vulnerability Fix

Issue: SnakeYaml Constructor Deserialization Remote Code Execution
Severity: High
CVE: CVE-2022-1471
Fixed by: Ana Security Bot

🔍 Vulnerability Details

SnakeYaml's Constructor() class does not restrict types which can be instantiated during deserialization. This allows attackers to execute arbitrary code through specially crafted YAML content during deserialization operations.

🛠️ Changes Made

• ✅ Upgraded SnakeYaml from version 1.23 to 2.0
• ✅ Updated dependency configuration in pom.xml
• ✅ Updated associated license documentation

📁 Files Modified

• pom.xml - Updated SnakeYaml dependency version
• LICENSE - Updated related documentation

🔒 Security Impact

• Before: Attackers could execute arbitrary code through YAML deserialization
• After: Restricted type instantiation during deserialization
• Risk Reduction: Eliminates remote code execution attack vector

🧪 Testing Recommendations

• Verify all YAML parsing operations use SafeConstructor
• Test YAML deserialization with various payloads
• Confirm application functionality with restricted type loading
• Run security scans to validate fix
• Test all components that depend on YAML parsing

⚠️ Implementation Notes

When using SnakeYaml, always:

1. Use SafeConstructor for parsing untrusted content
2. Explicitly whitelist allowed classes for deserialization
3. Validate YAML content before processing

📚 References

• CVE-2022-1471 Details
• SnakeYaml Security Advisory
• Snyk Security Analysis

🔄 Dependency Update