CVE-2006-2673 in Elite-Board
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in search.html in Bulletin Board Elite-Board (E-Board) 1.1 allows remote attackers to inject arbitrary web script or HTML via the search box.
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Analysis
by VulDB Data Team • 07/27/2018
The vulnerability identified as CVE-2006-2673 represents a classic cross-site scripting flaw within the Bulletin Board Elite-Board (E-Board) version 1.1 software. This particular implementation affects the search.html page component where user input is not properly sanitized or encoded before being rendered back to the browser. The vulnerability exists in the web application's handling of search parameters, creating an opportunity for malicious actors to execute arbitrary scripts within the context of other users' browsers who visit affected pages. The flaw stems from insufficient input validation and output encoding mechanisms that fail to neutralize potentially harmful script code submitted through the search functionality.
This XSS vulnerability operates under CWE-79 which classifies it as a weakness involving the improper neutralization of input during web page generation. The attack vector specifically targets the search box functionality where user-entered text is directly incorporated into dynamic web content without adequate sanitization measures. When a victim visits a page containing malicious script code injected through the search parameter, the browser executes this code in the context of the victim's session, potentially leading to session hijacking, credential theft, or redirection to malicious websites. The vulnerability is particularly concerning because it allows remote attackers to inject arbitrary web script or HTML code without requiring any privileged access or authentication.
The operational impact of this vulnerability extends beyond simple script injection as it creates persistent security risks for users interacting with the bulletin board system. Attackers can craft malicious search queries that, when viewed by other users, execute malicious code in their browsers. This could result in unauthorized access to user sessions, data exfiltration, or the deployment of additional malware through browser-based attacks. The vulnerability affects the integrity of the web application's user interface and can compromise the trust relationship between users and the bulletin board system. According to ATT&CK framework, this vulnerability maps to T1059.007 for scripting and T1566.001 for spearphishing with malicious content, as attackers can leverage this flaw to deliver malicious payloads through seemingly legitimate search functionality.
Mitigation strategies for this vulnerability should focus on implementing proper input validation and output encoding mechanisms throughout the application. The most effective approach involves sanitizing all user input before processing and encoding any dynamic content before rendering it in web pages. Implementing Content Security Policy headers can provide additional defense-in-depth measures to prevent script execution. Regular security code reviews and automated vulnerability scanning should be integrated into the development lifecycle to identify similar issues. The system should also implement proper HTTP headers to prevent XSS attacks and ensure that all user-supplied data is properly escaped when incorporated into HTML output. Organizations using E-Board 1.1 should consider upgrading to patched versions or implementing web application firewalls as temporary mitigations until proper updates are deployed.