CVE-2020-37089 Overview
School ERP Pro 1.0 contains a SQL injection vulnerability in the es_messagesid parameter that allows attackers to manipulate database queries through GET requests. Attackers can exploit the vulnerable parameter by injecting crafted SQL statements to potentially extract, modify, or delete database information. This vulnerability poses a significant risk to educational institutions using this software, as it could expose sensitive student and staff records.
Critical Impact
Attackers can leverage this SQL injection flaw to extract sensitive educational records, modify database contents, or potentially compromise the entire backend database system through the vulnerable es_messagesid parameter.
Affected Products
- School ERP Pro 1.0
Discovery Timeline
- 2026-02-03 - CVE CVE-2020-37089 published to NVD
- 2026-02-04 - Last updated in NVD database
Technical Details for CVE-2020-37089
Vulnerability Analysis
This vulnerability falls under CWE-89 (Improper Neutralization of Special Elements used in an SQL Command), commonly known as SQL Injection. The flaw exists in how the application processes user-supplied input through the es_messagesid parameter without proper sanitization or parameterized queries.
When a user submits a request containing the es_messagesid parameter, the application directly incorporates this input into SQL queries. This allows an attacker to break out of the intended query structure and inject arbitrary SQL commands. The network-accessible nature of this vulnerability means remote attackers can exploit it without requiring physical access to the target system, though some level of authentication appears necessary based on the attack requirements.
Root Cause
The root cause of this vulnerability is the failure to properly validate and sanitize user input before incorporating it into SQL queries. The es_messagesid parameter accepts GET request input that is directly concatenated into database queries without the use of prepared statements or parameterized queries. This classic SQL injection pattern allows attackers to manipulate the query logic by injecting special SQL characters and commands.
Attack Vector
The attack is conducted over the network via HTTP GET requests targeting the vulnerable es_messagesid parameter. An attacker can craft malicious URLs containing SQL injection payloads that, when processed by the application, execute unintended database operations. The exploitation requires low attack complexity, making it accessible to attackers with basic SQL injection knowledge.
The vulnerability enables attackers to potentially:
- Extract sensitive data from the database including student records, grades, and personal information
- Modify existing database records
- Enumerate database structure and user credentials
- Potentially escalate to further system compromise depending on database permissions
Technical details and proof-of-concept information are available through the Exploit-DB #48390 entry and the VulnCheck SQL Injection Advisory.
Detection Methods for CVE-2020-37089
Indicators of Compromise
- Unusual or malformed HTTP GET requests containing SQL syntax in the es_messagesid parameter
- Database error messages appearing in web application responses indicating query manipulation
- Unexpected database queries or access patterns in database logs
- Evidence of data exfiltration or unauthorized database modifications
Detection Strategies
- Deploy Web Application Firewall (WAF) rules to detect and block SQL injection patterns in the es_messagesid parameter
- Monitor web server access logs for requests containing SQL keywords such as UNION, SELECT, INSERT, DELETE, or comment sequences (--, /*)
- Implement database activity monitoring to detect anomalous query patterns
- Use intrusion detection systems (IDS) with SQL injection signature detection capabilities
Monitoring Recommendations
- Enable detailed logging on web servers and database systems to capture all requests to endpoints handling the es_messagesid parameter
- Configure alerts for database errors that may indicate attempted SQL injection attacks
- Regularly review access logs for patterns consistent with automated SQL injection scanning tools
- Monitor for unexpected outbound data transfers that could indicate successful data exfiltration
How to Mitigate CVE-2020-37089
Immediate Actions Required
- Restrict network access to the School ERP Pro application to trusted networks only
- Implement Web Application Firewall (WAF) rules to filter SQL injection attempts targeting the es_messagesid parameter
- Consider temporarily disabling or restricting access to the messaging functionality if not critical to operations
- Audit database logs for any signs of prior exploitation
Patch Information
No official vendor patch information is currently available in the CVE data. Organizations should check the vendor's website or contact support for security updates. The original project appears to have been hosted on SourceForge, with archived information available through the SourceForge Project Archive. Additional vendor information may be found at the Arox Website Snapshot.
Workarounds
- Implement input validation at the application level to reject any input containing SQL metacharacters in the es_messagesid parameter
- Deploy a reverse proxy or WAF with SQL injection protection in front of the application
- Use database user accounts with minimal required privileges to limit the impact of successful exploitation
- Consider implementing prepared statements or parameterized queries if source code modification is possible
- Isolate the database server from direct internet access and restrict connections to the application server only
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
