CVE-2019-25298
📋 TL;DR
CVE-2019-25298 is an SQL injection vulnerability in html5_snmp 1.11 that allows attackers to manipulate database queries through Router_ID and Router_IP parameters. Attackers can use error-based, time-based, and union-based injection techniques to extract or modify database information. This affects systems running the vulnerable html5_snmp software.
💻 Affected Systems
- html5_snmp
📦 What is this software?
Html5 Snmp by Lolypop55
⚠️ Risk & Real-World Impact
Worst Case
Full database compromise allowing data exfiltration, modification, or deletion; potential privilege escalation to system-level access.
Likely Case
Unauthorized access to SNMP configuration data, network topology information, and potential manipulation of monitoring data.
If Mitigated
Limited impact with proper input validation and database permissions in place.
🎯 Exploit Status
Exploit code available on Exploit-DB; multiple injection techniques supported.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not available
Vendor Advisory: Not available
Restart Required: No
Instructions:
No official patch available. Consider upgrading to a different SNMP monitoring solution or implementing workarounds.
🔧 Temporary Workarounds
Input Validation Filter
allImplement input validation for Router_ID and Router_IP parameters to reject SQL injection patterns.
Modify application code to sanitize inputs using parameterized queries or prepared statements
Web Application Firewall
allDeploy WAF with SQL injection rules to block malicious payloads.
Configure WAF rules to detect and block SQL injection patterns in Router_ID and Router_IP parameters
🧯 If You Can't Patch
- Isolate html5_snmp system on separate network segment with strict access controls
- Implement network-level monitoring for SQL injection attempts against the web interface
🔍 How to Verify
Check if Vulnerable:
Test Router_ID and Router_IP parameters with SQL injection payloads like ' OR '1'='1Check Version:
Check html5_snmp version in web interface or configuration filesVerify Fix Applied:
Verify input validation prevents SQL injection payloads and returns appropriate error messages📡 Detection & Monitoring
Log Indicators:
- Unusual SQL error messages in application logs
- Multiple failed login attempts with SQL patterns
Network Indicators:
- HTTP requests containing SQL keywords (SELECT, UNION, etc.) in Router_ID/Router_IP parameters
SIEM Query:
web.url:* AND (web.param:*SELECT* OR web.param:*UNION* OR web.param:*OR '1'='1*)