CVE-2006-6388 in Content Management Server
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in naprednaPretraga.php in LINK Content Management Server (CMS) allows remote attackers to inject arbitrary web script or HTML via the txtPretraga parameter. NOTE: The provenance of this information is unknown; the details are obtained solely from third party information.
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Analysis
by VulDB Data Team • 09/29/2017
The vulnerability identified as CVE-2006-6388 represents a classic cross-site scripting flaw within the LINK Content Management Server CMS, specifically affecting the naprednaPretraga.php component. This type of vulnerability falls under the CWE-79 category, which defines cross-site scripting as a security weakness that occurs when an application incorporates untrusted data into web pages without proper validation or encoding. The vulnerability manifests when the application fails to adequately sanitize user input received through the txtPretraga parameter, creating an attack surface where malicious actors can execute arbitrary JavaScript code within the context of other users' browsers.
The technical exploitation of this vulnerability occurs when remote attackers submit malicious payloads through the txtPretraga parameter in the naprednaPretraga.php script. This parameter likely serves as a search or filter mechanism within the CMS's advanced search functionality, making it a common entry point for attackers who understand how to craft payloads that bypass input validation. The flaw enables attackers to inject HTML content and JavaScript code that executes in the victim's browser when they view the affected page, potentially leading to session hijacking, credential theft, or redirection to malicious sites. The vulnerability's impact is amplified by the fact that it affects a core content management function, making it accessible to attackers who may not require special privileges or authentication to exploit.
From an operational perspective, this XSS vulnerability presents significant risks to organizations using the LINK CMS, particularly those with multiple users or administrative capabilities. The attack vector allows for persistent XSS attacks where malicious scripts can be stored on the server and executed whenever legitimate users access the affected search functionality. This creates opportunities for attackers to steal session cookies, modify content, or redirect users to phishing sites that appear legitimate. The vulnerability's classification aligns with ATT&CK technique T1531 which describes the use of malicious code injection to gain access to user sessions and potentially escalate privileges within the affected system.
Mitigation strategies for CVE-2006-6388 should focus on implementing robust input validation and output encoding mechanisms. Organizations must ensure that all user-supplied data is properly sanitized before being processed or displayed within web pages. This includes implementing proper HTML entity encoding for all dynamic content and employing content security policies to prevent unauthorized script execution. The recommended approach involves validating input parameters against strict whitelists, implementing proper escape sequences for special characters, and ensuring that the CMS is updated to the latest available version that addresses this vulnerability. Security measures should also include regular web application vulnerability assessments and the implementation of web application firewalls to detect and prevent such attacks. Additionally, administrators should consider implementing principle of least privilege access controls and regular security audits to minimize the potential impact of successful exploitation attempts.