CVE-2020-10771
📋 TL;DR
CVE-2020-10771 is a CSRF vulnerability in Infinispan 10 that allows attackers to perform unauthorized actions via GET requests. This affects systems running vulnerable Infinispan versions, potentially enabling data manipulation or service disruption. Organizations using Infinispan for caching or data grid functionality are at risk.
💻 Affected Systems
- Infinispan
📦 What is this software?
Data Grid by Redhat
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of Infinispan-managed data, including data corruption, unauthorized modifications, or service disruption affecting dependent applications.
Likely Case
Unauthorized data manipulation or configuration changes within Infinispan, potentially affecting application performance or data integrity.
If Mitigated
Limited impact with proper CSRF protections, network segmentation, and access controls in place.
🎯 Exploit Status
Exploitation requires the victim to be authenticated to Infinispan and visit a malicious webpage. Standard CSRF attack vectors apply.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Infinispan 10.1.8.Final and later
Vendor Advisory: https://bugzilla.redhat.com/show_bug.cgi?id=1846293
Restart Required: Yes
Instructions:
1. Upgrade Infinispan to version 10.1.8.Final or later. 2. Stop Infinispan service. 3. Replace Infinispan JAR files with patched version. 4. Restart Infinispan service. 5. Verify version and functionality.
🔧 Temporary Workarounds
Disable GET for state-changing operations
allConfigure Infinispan to reject GET requests for operations that modify state
Modify Infinispan configuration to enforce POST/PUT/DELETE for state-changing operations
Implement CSRF tokens
allAdd CSRF protection to Infinispan REST endpoints
Configure web application firewall or reverse proxy to inject CSRF tokens
🧯 If You Can't Patch
- Implement strict network segmentation to isolate Infinispan from untrusted networks
- Deploy web application firewall with CSRF protection rules
🔍 How to Verify
Check if Vulnerable:
Check Infinispan version: if running 10.1.x before 10.1.8, system is vulnerable. Test if GET requests can perform state-changing operations via REST API.Check Version:
java -jar infinispan-server.jar --versionVerify Fix Applied:
Verify Infinispan version is 10.1.8.Final or later. Test that GET requests to state-changing endpoints now return appropriate error codes.📡 Detection & Monitoring
Log Indicators:
- Multiple GET requests to state-changing endpoints from same source
- Unexpected 200 OK responses to GET requests that should require POST
Network Indicators:
- GET requests with parameters that typically require POST/PUT
- Cross-origin requests to Infinispan REST endpoints
SIEM Query:
source="infinispan" AND (method="GET" AND (uri="/rest/*" OR uri="/api/*") AND status=200)