CVE-2025-26163
📋 TL;DR
CVE-2025-26163 is a critical SQL injection vulnerability in CM Soluces Informatica Ltda Auto Atendimento software versions 1.x.x. Attackers can exploit the CPF parameter to execute arbitrary SQL commands, potentially compromising the entire database. Organizations using this software for customer self-service systems are affected.
💻 Affected Systems
- CM Soluces Informatica Ltda Auto Atendimento
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise leading to data theft, data destruction, or full system takeover via SQL injection to RCE chaining.
Likely Case
Unauthorized data access, extraction of sensitive customer information (CPF numbers, personal data), and potential authentication bypass.
If Mitigated
Limited impact with proper input validation, parameterized queries, and network segmentation in place.
🎯 Exploit Status
Public PoC available on GitHub demonstrates exploitation. SQL injection via CPF parameter requires minimal technical skill.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Unknown
Restart Required: No
Instructions:
No official patch available. Contact vendor for updates and implement workarounds immediately.
🔧 Temporary Workarounds
Input Validation and Sanitization
allImplement strict input validation for CPF parameter to allow only numeric characters in expected format.
WAF Rule Implementation
allDeploy web application firewall rules to block SQL injection patterns targeting CPF parameter.
🧯 If You Can't Patch
- Isolate the Auto Atendimento system from internet access and restrict to internal network only.
- Implement network segmentation and strict firewall rules to limit database access from application servers.
🔍 How to Verify
Check if Vulnerable:
Test CPF parameter with SQL injection payloads (e.g., ' OR '1'='1) and observe database errors or unexpected behavior.Check Version:
Check software version in application interface or configuration files.Verify Fix Applied:
Verify that SQL injection payloads no longer execute and return proper error handling or validation messages.📡 Detection & Monitoring
Log Indicators:
- Unusual SQL queries in database logs
- Multiple failed login attempts with SQL patterns
- CPF parameter containing SQL keywords
Network Indicators:
- HTTP requests with SQL injection patterns in CPF parameter
- Unusual database connection patterns from application server
SIEM Query:
source="web_logs" AND (cpf="*' OR*" OR cpf="*;--*" OR cpf="*UNION*" OR cpf="*SELECT*" OR cpf="*INSERT*")