How the CVE Works:
CVE-2025-27138 is a critical authentication bypass vulnerability in DataEase, an open-source business intelligence and data visualization tool. The flaw resides in the `io.dataease.auth.filter.TokenFilter` class, which is responsible for validating user tokens during authentication. Prior to version 2.10.6, improper validation of tokens allows attackers to bypass authentication mechanisms, granting unauthorized access to sensitive data and functionalities. This vulnerability stems from insufficient checks on token integrity and expiration, enabling malicious actors to craft or manipulate tokens to impersonate legitimate users. The issue has been patched in DataEase v2.10.6, and users are strongly advised to upgrade immediately.
DailyCVE Form:
Platform: DataEase
Version: < 2.10.6
Vulnerability: Authentication Bypass
Severity: Critical
Date: 03/13/2025
What Undercode Say:
Exploitation:
- Token Manipulation: Attackers can forge or tamper with authentication tokens to bypass security checks.
- Unauthorized Access: Exploiting this vulnerability grants access to restricted functionalities and sensitive data.
3. Exploit Code:
import requests
target_url = "http://target-dataease-instance/api/endpoint"
malicious_token = "maliciously_crafted_token"
headers = {"Authorization": f"Bearer {malicious_token}"}
response = requests.get(target_url, headers=headers)
if response.status_code == 200:
print("Access granted:", response.json())
else:
print("Exploit failed.")
Protection:
- Upgrade: Immediately update to DataEase v2.10.6 or later.
- Token Validation: Implement strict token validation, including integrity and expiration checks.
- Network Security: Restrict access to DataEase instances using firewalls and VPNs.
- Monitoring: Deploy intrusion detection systems (IDS) to monitor for suspicious activity.
Commands:
1. Check Version:
dataease --version
2. Upgrade DataEase:
sudo apt-get update && sudo apt-get install dataease
3. Restart Service:
sudo systemctl restart dataease
Analytics:
- CVSS Score: 9.8 (Critical)
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: None
- Impact: High (Confidentiality, Integrity, Availability)
References:
- bash
- bash
By following these steps, users can mitigate the risk posed by CVE-2025-27138 and secure their DataEase instances effectively.
References:
Reported By: https://nvd.nist.gov/vuln/detail/CVE-2025-27138
Extra Source Hub:
Undercode
