CVE-2019-11368 in Solar Data Recorder
Summary
by MITRE
Stored XSS was discovered in AUO Solar Data Recorder before 1.3.0 via the protect/config.htm addr parameter.
Once again VulDB remains the best source for vulnerability data.
Analysis
by VulDB Data Team • 08/10/2024
The vulnerability identified as CVE-2019-11368 represents a critical stored cross-site scripting flaw within the AUO Solar Data Recorder software ecosystem. This security weakness affects versions prior to 1.3.0 and specifically manifests through the protect/config.htm endpoint where the addr parameter becomes a vector for malicious code injection. The vulnerability classification aligns with CWE-79 which defines cross-site scripting as a common web application security flaw that allows attackers to inject client-side scripts into web pages viewed by other users. The stored nature of this vulnerability means that malicious input persists within the application's database or storage mechanisms, making it particularly dangerous as the payload executes automatically whenever affected users access the vulnerable page.
The technical exploitation of this vulnerability occurs when an attacker crafts malicious input containing script code and submits it through the addr parameter in the protect/config.htm URL path. Once stored within the application's backend systems, this malicious content becomes part of the normal application behavior and executes whenever legitimate users navigate to the affected configuration page. The flaw demonstrates poor input validation and output encoding practices within the AUO Solar Data Recorder's web interface, creating an environment where untrusted data flows directly into the browser context without proper sanitization or escaping mechanisms. This type of vulnerability directly violates security best practices established by the Open Web Application Security Project and represents a significant risk to the confidentiality and integrity of the solar data monitoring environment.
The operational impact of CVE-2019-11368 extends beyond simple script execution as it provides attackers with potential access to sensitive operational data within the solar monitoring infrastructure. An attacker could leverage this vulnerability to steal session cookies, redirect users to malicious sites, or execute arbitrary commands within the context of the victim's browser session. The implications are particularly concerning for industrial control systems and energy monitoring environments where the solar data recorder serves as a critical component of operational technology infrastructure. This vulnerability could enable adversaries to gain unauthorized access to system configuration details, potentially leading to more severe compromise of the entire solar monitoring network. The attack vector aligns with techniques documented in the MITRE ATT&CK framework under the T1059.007 sub-technique for scripting, specifically targeting web application interfaces to establish persistent access to operational technology environments.
Mitigation strategies for this vulnerability require immediate implementation of proper input validation and output encoding mechanisms within the affected application. The software vendor should implement strict parameter validation for the addr field in the protect/config.htm endpoint, ensuring that all user-supplied input undergoes rigorous sanitization before being stored or rendered in the web interface. The recommended approach includes implementing Content Security Policy headers, escaping all dynamic content before rendering, and employing proper parameterized queries to prevent injection attacks. Additionally, the affected systems should be upgraded to version 1.3.0 or later where the vulnerability has been addressed through proper security hardening measures. Organizations should also implement network segmentation and monitoring of the solar data recorder systems to detect potential exploitation attempts and maintain comprehensive audit logs of configuration changes to identify unauthorized modifications that may result from successful attacks.