CVE-2024-8642
📋 TL;DR
This vulnerability in Eclipse Dataspace Components allows attackers to bypass token expiration checks in the ConsumerPullTransferTokenValidationApiController. Attackers can use expired or invalid tokens to access data transfer functionality. This affects systems running versions 0.5.0 through 0.8.x with specific dataplane configurations.
💻 Affected Systems
- Eclipse Dataspace Components
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Unauthorized data access and exfiltration through expired tokens, potentially leading to data breaches and compliance violations.
Likely Case
Unauthorized data transfers using expired tokens, compromising data integrity and access controls.
If Mitigated
Limited impact if proper network segmentation and monitoring are in place, but still represents an authentication bypass.
🎯 Exploit Status
Exploitation requires sending requests with expired tokens to the vulnerable endpoint. No authentication needed if endpoint is accessible.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 0.9.0
Vendor Advisory: https://gitlab.eclipse.org/security/cve-assignement/-/issues/28
Restart Required: Yes
Instructions:
1. Upgrade to version 0.9.0 or later. 2. Remove deprecated ConsumerPullTransferTokenValidationApiController code. 3. Migrate to Dataplane Signaling as recommended. 4. Restart the application.
🔧 Temporary Workarounds
Disable vulnerable endpoint
allDisable or restrict access to the ConsumerPullTransferTokenValidationApiController endpoint
Configure firewall rules to block access to the vulnerable endpoint
Disable the transfer-data-plane module if not required
Network segmentation
linuxRestrict network access to the vulnerable endpoint to trusted sources only
iptables -A INPUT -p tcp --dport [PORT] -s [TRUSTED_IP] -j ACCEPT
iptables -A INPUT -p tcp --dport [PORT] -j DROP
🧯 If You Can't Patch
- Implement strict network access controls to limit who can reach the vulnerable endpoint
- Deploy additional token validation at the application or API gateway level
🔍 How to Verify
Check if Vulnerable:
Check if running Eclipse Dataspace Components version 0.5.0 through 0.8.x with transfer-data-plane module enabled and http proxy consumer pull configured.Check Version:
Check application logs or configuration files for version information, or use: java -jar [application].jar --versionVerify Fix Applied:
Verify version is 0.9.0 or later and that ConsumerPullTransferTokenValidationApiController code is no longer present.📡 Detection & Monitoring
Log Indicators:
- Requests to ConsumerPullTransferTokenValidationApiController with expired tokens
- Successful data transfers with timestamps outside token validity periods
Network Indicators:
- Unusual data transfer patterns from the vulnerable endpoint
- Requests bypassing normal token validation flows
SIEM Query:
source="eclipse-dataspace" AND (endpoint="ConsumerPullTransferTokenValidationApiController" OR token_expired=true)