CVE-2015-6945 in JSP
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in JSP/MySQL Administrador Web 1 allows remote attackers to inject arbitrary web script or HTML via the bd parameter to sys/sys/listaBD2.jsp.
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Analysis
by VulDB Data Team • 09/16/2024
The vulnerability identified as CVE-2015-6945 represents a critical cross-site scripting flaw in the JSP/MySQL Administrador Web 1 application, specifically affecting the sys/sys/listaBD2.jsp component. This issue enables remote attackers to execute malicious web scripts or HTML code within the context of other users' browsers, fundamentally compromising the application's security posture and user data integrity. The vulnerability manifests through the bd parameter which is improperly handled within the listaBD2.jsp file, creating an entry point for malicious input injection that bypasses standard security mechanisms.
The technical exploitation of this vulnerability occurs when an attacker crafts malicious input containing script code and passes it through the bd parameter to the vulnerable endpoint. The application fails to properly sanitize or encode the user-supplied input before rendering it in the web response, allowing the injected malicious code to execute in the victim's browser context. This type of flaw falls under CWE-79 which specifically addresses cross-site scripting vulnerabilities, where web applications improperly handle untrusted data. The vulnerability demonstrates a classic input validation failure where the application trusts user input without adequate sanitization measures, creating a persistent security weakness that can be exploited across multiple sessions and user interactions.
The operational impact of CVE-2015-6945 extends beyond simple script execution, as it provides attackers with the capability to steal session cookies, perform unauthorized actions on behalf of users, redirect victims to malicious sites, or even escalate privileges within the application's administrative interface. This vulnerability particularly affects web applications that handle database management operations, as it can enable attackers to access sensitive database information, manipulate stored procedures, or potentially gain deeper system access. The remote nature of the attack means that exploitation can occur from any location, making the vulnerability particularly dangerous for applications that are publicly accessible or deployed in untrusted network environments.
Mitigation strategies for this vulnerability should focus on implementing proper input validation and output encoding mechanisms throughout the application's codebase. The most effective approach involves sanitizing all user-supplied input through strict validation rules and encoding output data before rendering it in web pages, specifically implementing context-specific encoding for html, javascript, and url contexts. Organizations should also consider implementing Content Security Policy headers to limit script execution and prevent unauthorized code injection. Additionally, regular security code reviews and automated vulnerability scanning should be integrated into the development lifecycle to identify and remediate similar issues before they can be exploited. This vulnerability aligns with ATT&CK technique T1059.007 which covers scripting through web shells, and represents a fundamental security weakness that requires comprehensive remediation across all input handling components of the application.