CVE-2020-36951
Unknown · Unknown Multiple Products (specifically those using the `phpscript-sgh` component)
A high-severity vulnerability, identified as CVE-2020-36951, exists in multiple products utilizing the `phpscript-sgh` component.
Executive summary
A high-severity vulnerability, identified as CVE-2020-36951, exists in multiple products utilizing the phpscript-sgh component. This flaw allows an unauthenticated attacker to inject malicious SQL commands via the web interface, potentially leading to a complete compromise of the application's database, theft of sensitive data, and unauthorized system access.
Vulnerability
This vulnerability is a classic SQL Injection. The admin.php file of the affected component fails to properly sanitize user-supplied input in the 'username' parameter. An unauthenticated remote attacker can submit a specially crafted SQL query to this parameter on the administration login page. A successful exploit can bypass authentication mechanisms and allow the attacker to execute arbitrary SQL commands on the backend database, enabling them to read, modify, or delete data, and potentially escalate privileges to gain control over the application server.
Business impact
This vulnerability presents a significant risk to the organization, reflected by its High severity rating with a CVSS score of 8.2. Successful exploitation could lead to a severe data breach, exposing sensitive customer information, financial records, or intellectual property. The consequences include direct financial loss, reputational damage, and potential regulatory fines for non-compliance with data protection standards. Furthermore, the loss of data integrity could disrupt business operations, and if the compromised database account has excessive privileges, the attacker could pivot to gain deeper access into the corporate network.
Remediation
Immediate Action: Organizations must prioritize applying security updates released by the respective product vendors to patch this vulnerability. Until patches are applied, it is critical to monitor for potential exploitation attempts by closely reviewing web server and database access logs for indicators of compromise.
Proactive Monitoring: Security teams should actively monitor for exploitation attempts by:
- Reviewing web server access logs for requests to
admin.phpcontaining SQL keywords (SELECT,UNION,OR,'--,#) or boolean logic (' OR 1=1) in theusernameparameter. - Implementing and monitoring Web Application Firewall (WAF) alerts for SQL injection signatures targeting the application.
- Auditing database logs for unusual or unauthorized queries originating from the web application's service account.
Compensating Controls: If immediate patching is not feasible, the following controls can help mitigate the risk:
- Deploy a properly configured Web Application Firewall (WAF) to block SQL injection attack patterns.
- Restrict network access to the
admin.phppage, allowing connections only from trusted IP addresses. - Ensure the database user account leveraged by the web application operates under the principle of least privilege, limiting an attacker's ability to read sensitive tables or modify the database schema.
Exploitation status
Public Exploit Available: true
Analyst recommendation
Given the high CVSS score of 8.2 and the confirmed availability of a public exploit, this vulnerability requires immediate attention. We strongly recommend that security and IT teams urgently identify all assets running software that incorporates the phpscript-sgh component. These systems should be patched immediately. If patching is delayed, compensating controls such as WAF implementation and access restrictions must be deployed without delay. Furthermore, a threat hunt should be initiated to search for any historical signs of compromise related to this vulnerability.