CVE-2019-5722
📋 TL;DR
CVE-2019-5722 is a critical SQL injection vulnerability in Portier Vision versions 4.4.4.2 and 4.4.4.6 that allows attackers to execute arbitrary SQL commands through unvalidated user inputs. This affects systems using these specific versions of Portier Vision software, potentially enabling unauthorized access, data theft, or system compromise.
💻 Affected Systems
- Portier Vision
📦 What is this software?
Portier by Portier
Portier by Portier
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise including administrative access, database exfiltration, and potential lateral movement to connected systems.
Likely Case
Unauthorized access to sensitive data, authentication bypass, and potential privilege escalation.
If Mitigated
Limited impact with proper input validation, parameterized queries, and network segmentation in place.
🎯 Exploit Status
Multiple public exploit scripts available. Exploitation requires minimal technical skill due to published PoCs.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Versions after 4.4.4.6
Vendor Advisory: https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2018-012.txt
Restart Required: Yes
Instructions:
1. Contact Portier vendor for updated version. 2. Backup current installation. 3. Apply vendor-provided patch or upgrade to fixed version. 4. Restart application services. 5. Verify fix implementation.
🔧 Temporary Workarounds
Input Validation Web Application Firewall
allImplement WAF rules to block SQL injection patterns in login and search parameters
# WAF rule example: Block SQL keywords in POST parameters
SecRule ARGS "(?i:(union|select|insert|update|delete|drop|exec|xp_))" "id:1001,phase:2,deny,status:403,msg:'SQLi attempt detected'"
Network Segmentation
linuxRestrict access to Portier Vision interface to trusted networks only
# Example firewall rule (Linux iptables)
iptables -A INPUT -p tcp --dport [PORTIER_PORT] -s [TRUSTED_NETWORK] -j ACCEPT
iptables -A INPUT -p tcp --dport [PORTIER_PORT] -j DROP
🧯 If You Can't Patch
- Implement strict input validation and parameterized queries in application code
- Deploy network-level controls to restrict access and monitor for SQL injection attempts
🔍 How to Verify
Check if Vulnerable:
Test login and search forms with SQL injection payloads like ' OR '1'='1 or check version against affected rangeCheck Version:
Check application interface or configuration files for version information (typically in web interface footer or about page)Verify Fix Applied:
Attempt SQL injection tests after patch; successful queries should be blocked or sanitized📡 Detection & Monitoring
Log Indicators:
- Unusual SQL error messages in application logs
- Multiple failed login attempts with SQL-like patterns
- Unexpected database queries from application user
Network Indicators:
- SQL keywords in HTTP POST parameters to login/search endpoints
- Unusual database connection patterns
SIEM Query:
source="portier_logs" AND (message="*sql*" OR message="*syntax*" OR message="*union*" OR message="*select*")🔗 References
- http://packetstormsecurity.com/files/151117/PORTIER-4.4.4.2-4.4.4.6-SQL-Injection.html
- https://seclists.org/bugtraq/2019/Jan/7
- https://www.exploit-db.com/exploits/46163/
- https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2018-012.txt
- http://packetstormsecurity.com/files/151117/PORTIER-4.4.4.2-4.4.4.6-SQL-Injection.html
- https://seclists.org/bugtraq/2019/Jan/7
- https://www.exploit-db.com/exploits/46163/
- https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2018-012.txt
