CVE-2024-0857: Flexwater Water Management SQLi Flaw

CVE-2024-0857 Overview

CVE-2024-0857 is a SQL Injection vulnerability affecting Universal Software Inc. (Uni-yaz) FlexWater Corporate Water Management software. This vulnerability allows attackers to inject malicious SQL commands through improperly neutralized input, potentially leading to unauthorized access to sensitive data, data manipulation, or complete system compromise. The flaw exists in versions prior to 5.452.0 of the FlexWater Corporate Water Management platform.

Critical Impact

This SQL Injection vulnerability enables unauthenticated remote attackers to execute arbitrary SQL commands against the underlying database, potentially exposing sensitive water management data, customer information, and enabling full database compromise.

Affected Products

• Uni-yaz FlexWater Corporate Water Management versions before 5.452.0

Discovery Timeline

• 2024-07-18 - CVE-2024-0857 published to NVD
• 2024-11-21 - Last updated in NVD database

Technical Details for CVE-2024-0857

Vulnerability Analysis

This SQL Injection vulnerability (CWE-89) occurs when user-supplied input is incorporated into SQL queries without proper sanitization or parameterization. The FlexWater Corporate Water Management application fails to properly neutralize special characters used in SQL commands, allowing attackers to manipulate database queries. This is a classic injection flaw that can be exploited remotely without requiring authentication, making it particularly dangerous for internet-facing deployments of this water management software.

Root Cause

The root cause of this vulnerability lies in improper input validation and the lack of parameterized queries or prepared statements in the FlexWater application. When user input is directly concatenated into SQL query strings without sanitization, special SQL characters such as single quotes, semicolons, and SQL keywords can be interpreted as part of the query structure rather than as literal data values. This allows attackers to break out of the intended query context and inject their own SQL commands.

Attack Vector

The vulnerability is exploitable over the network without requiring any privileges or user interaction. An attacker can craft malicious HTTP requests containing SQL injection payloads in vulnerable input fields or parameters. These payloads can be designed to extract sensitive information from the database (data exfiltration), modify or delete existing records (data manipulation), or potentially execute administrative operations depending on the database permissions configured for the application. The attack surface includes any user-controllable input that is processed by the vulnerable SQL query construction logic within the FlexWater application.

Detection Methods for CVE-2024-0857

Indicators of Compromise

• Unusual database query patterns or errors in application logs indicating SQL syntax errors
• Unexpected data extraction or modification activities in database audit logs
• Anomalous HTTP requests containing SQL keywords or special characters in parameters
• Increased database load or unusual query execution times

Detection Strategies

• Deploy Web Application Firewall (WAF) rules to detect and block SQL injection patterns in HTTP requests
• Implement database activity monitoring to identify suspicious query patterns
• Review web server access logs for requests containing SQL injection signatures such as ', --, UNION, SELECT, or DROP
• Use SentinelOne Singularity Platform to monitor for anomalous process behavior associated with database exploitation

Monitoring Recommendations

• Enable verbose logging on the FlexWater application and underlying database systems
• Configure alerts for database errors that may indicate injection attempts
• Monitor for unauthorized data access patterns or bulk data extraction activities
• Implement network traffic analysis to detect data exfiltration attempts

How to Mitigate CVE-2024-0857

Immediate Actions Required

• Upgrade FlexWater Corporate Water Management to version 5.452.0 or later immediately
• If immediate patching is not possible, restrict network access to the FlexWater application to trusted IP ranges only
• Implement a Web Application Firewall with SQL injection protection rules
• Review database access logs for signs of exploitation prior to patching

Patch Information

Universal Software Inc. (Uni-yaz) has addressed this vulnerability in FlexWater Corporate Water Management version 5.452.0. Organizations should upgrade to this version or later to remediate the SQL injection vulnerability. For additional details, refer to the USOM Notification TR-24-1011.

Workarounds

• Deploy a Web Application Firewall configured to block SQL injection attack patterns
• Restrict access to the FlexWater application to internal networks or VPN-only access
• Implement network segmentation to isolate the database server from direct internet access
• Apply principle of least privilege to database accounts used by the application

# Example WAF rule configuration to block common SQL injection patterns
# Adjust based on your specific WAF solution
# Block requests containing common SQL injection keywords
deny from all if request_uri contains "UNION%20SELECT"
deny from all if request_uri contains "OR%201=1"
deny from all if request_uri contains "';--"