CVE-2024-9802
📋 TL;DR
CVE-2024-9802 exposes sensitive information through a publicly accessible conformance validation endpoint in Zowe API Layer. This allows unauthenticated attackers to discover service details, endpoints, and version information, potentially aiding further attacks. Organizations using Zowe API Layer with default configurations are affected.
💻 Affected Systems
- Zowe API Layer
📦 What is this software?
Zowe Api Mediation Layer by Linuxfoundation
⚠️ Risk & Real-World Impact
Worst Case
Attackers obtain detailed API documentation and service architecture information, enabling targeted attacks against specific endpoints, version-specific exploits, or service enumeration for lateral movement.
Likely Case
Information disclosure that reveals service structure, available endpoints, and software versions, facilitating reconnaissance for more sophisticated attacks.
If Mitigated
Limited exposure with only generic service availability confirmation if proper authentication and access controls are implemented.
🎯 Exploit Status
Simple HTTP request to the conformance endpoint reveals information without authentication.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Zowe API Layer repository for latest patched version
Vendor Advisory: https://github.com/zowe/api-layer
Restart Required: Yes
Instructions:
1. Update Zowe API Layer to latest version. 2. Restart Zowe services. 3. Verify endpoint is no longer publicly accessible.
🔧 Temporary Workarounds
Restrict endpoint access
allConfigure authentication or IP restrictions for the conformance validation endpoint
Configure Zowe security settings to require authentication for /api/v1/conformance endpoint
Network segmentation
allPlace Zowe API Layer behind reverse proxy with access controls
Configure nginx/apache to restrict access to sensitive endpoints
🧯 If You Can't Patch
- Implement network-level access controls to restrict who can reach the conformance endpoint
- Deploy web application firewall rules to block or sanitize responses from the conformance endpoint
🔍 How to Verify
Check if Vulnerable:
Send HTTP GET request to /api/v1/conformance endpoint without authentication and check if detailed service information is returnedCheck Version:
Check Zowe API Layer version in configuration or via APIVerify Fix Applied:
Attempt same request and verify endpoint requires authentication or returns generic response only📡 Detection & Monitoring
Log Indicators:
- Unusual access patterns to /api/v1/conformance endpoint
- Multiple failed authentication attempts followed by conformance endpoint access
Network Indicators:
- Unusual traffic to conformance endpoint from external IPs
- Information disclosure in HTTP responses
SIEM Query:
source="zowe" AND (url_path="/api/v1/conformance" OR response_contains="swagger" OR response_contains="endpoints")