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How CVE-2025-49001 Works
DataEase versions before 2.10.10 fail to properly validate JWT token secrets during authentication. The system accepts any arbitrary secret to generate or verify tokens, allowing attackers to forge valid JWTs without knowing the actual secret. This bypasses authentication entirely, granting unauthorized access to sensitive data and administrative functions. The flaw stems from improper JWT library implementation where secret verification is either skipped or incorrectly processed. Attackers can exploit this by crafting malicious tokens with arbitrary payloads while bypassing signature checks.
DailyCVE Form
Platform: DataEase
Version: <2.10.10
Vulnerability: JWT Forgery
Severity: Critical
Date: 06/05/2025
Prediction: Patch by 07/01/2025
What Undercode Say:
Analytics
- Exploitability: High (No prerequisites)
- Attack Vector: Remote
- Impact: Full system compromise
Exploit Commands
Craft malicious JWT token
python3 -c "import jwt; print(jwt.encode({'user':'admin'}, 'fake_secret', algorithm='HS256'))"
Curl request with forged token
curl -H "Authorization: Bearer <MALICIOUS_JWT>" http://target/dataease/api/admin
Protection Code
Proper JWT validation fix (Python example) from jwt import decode, InvalidSignatureError def verify_token(token, secret): try: payload = decode(token, secret, algorithms=['HS256']) return payload except InvalidSignatureError: return None
Mitigation Steps
1. Immediate Upgrade: Apply DataEase v2.10.10.
2. Secret Rotation: Invalidate all existing JWTs.
- Network Controls: Restrict API access to trusted IPs.
Detection Script
Check vulnerable versions grep -r "DataEase Version" /var/log/dataease | grep -v "2.10.10"
References
Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
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