CVE-2025-13119
📋 TL;DR
This CSRF vulnerability in Simple E-Banking System 1.0 allows attackers to trick authenticated users into performing unintended actions, such as forced withdrawals, by luring them to malicious websites. It affects all users of this specific banking software who are logged into their accounts while browsing other sites.
💻 Affected Systems
- Fabian Ros/SourceCodester Simple E-Banking System
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers could force authenticated users to transfer funds, modify account settings, or perform other banking transactions without their consent, leading to financial loss.
Likely Case
Attackers create malicious websites that trigger unauthorized banking transactions when visited by logged-in users, potentially draining accounts.
If Mitigated
With proper CSRF protections, requests would require valid tokens, preventing unauthorized actions even if users visit malicious sites.
🎯 Exploit Status
Exploit code is publicly available on GitHub; requires user authentication but no technical expertise to deploy.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None found
Restart Required: No
Instructions:
No official patch available. Consider implementing CSRF tokens manually or replacing the software.
🔧 Temporary Workarounds
Implement CSRF Protection
allAdd anti-CSRF tokens to all state-changing requests and validate them server-side.
Use SameSite Cookies
allSet SameSite=Strict or Lax on session cookies to prevent cross-site requests.
Set-Cookie: session=value; SameSite=Strict; Secure; HttpOnly
🧯 If You Can't Patch
- Deploy a WAF with CSRF protection rules to block malicious requests
- Educate users to log out of banking sessions when not actively using them and avoid clicking suspicious links
🔍 How to Verify
Check if Vulnerable:
Check if banking transactions can be triggered via POST requests without CSRF tokens by testing with tools like Burp Suite.Check Version:
Check application files or admin panel for version 1.0 indication.Verify Fix Applied:
Verify that all state-changing requests require and validate CSRF tokens, and test with CSRF PoC tools.📡 Detection & Monitoring
Log Indicators:
- Multiple failed transaction attempts from same IP without user interaction
- Unusual withdrawal patterns
Network Indicators:
- HTTP requests to banking endpoints with Referer headers from external domains
- POST requests without CSRF tokens
SIEM Query:
source="web_logs" AND (uri="/withdraw" OR uri="/transfer") AND referer CONTAINS "external-domain.com"