CVE-2008-3884 in Blogn
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in Blogn (BURO GUN) 1.9.7 and earlier allows remote attackers to inject arbitrary web script or HTML via unspecified vectors, a different issue than CVE-2006-6176.
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Analysis
by VulDB Data Team • 10/08/2018
The CVE-2008-3884 vulnerability represents a cross-site scripting flaw discovered in Blogn (BURO GUN) version 1.9.7 and earlier systems, constituting a critical web application security weakness that enables remote attackers to execute malicious scripts within the context of victim browsers. This vulnerability specifically affects the blogging platform's handling of user input data, creating an avenue for attackers to inject arbitrary web scripts or HTML content into web pages viewed by other users. Unlike CVE-2006-6176 which addressed a different XSS vector, this particular flaw demonstrates the persistent nature of cross-site scripting vulnerabilities in web applications and highlights the importance of comprehensive input validation across all application components.
The technical implementation of this vulnerability stems from insufficient sanitization of user-supplied data within the Blogn platform's processing pipeline. Attackers can exploit this weakness by submitting malicious payloads through unspecified input vectors that are subsequently rendered in web pages without proper encoding or filtering mechanisms. The vulnerability operates at the application layer where user-generated content flows through the system and gets displayed to other users, creating a persistent threat vector that can be leveraged for various malicious activities including session hijacking, credential theft, and redirection to malicious sites. The flaw aligns with CWE-79 which specifically addresses cross-site scripting vulnerabilities, and represents a classic example of unsafe output encoding where data enters the application through user input and exits through web output without adequate sanitization.
The operational impact of CVE-2008-3884 extends beyond simple script execution, as it provides attackers with a foothold for more sophisticated attacks within the web application environment. When successfully exploited, this vulnerability can enable attackers to steal session cookies, modify page content, redirect users to phishing sites, or even execute arbitrary commands on the affected system. The vulnerability's persistence across multiple versions of the Blogn platform indicates a fundamental flaw in the application's security architecture that requires immediate remediation. From an attacker perspective, this vulnerability fits within the attack pattern described by the MITRE ATT&CK framework under the T1059.007 technique for command and scripting interpreter, specifically web shell execution, where malicious scripts can be injected and executed within the victim's browser context.
Organizations utilizing affected Blogn versions should implement immediate mitigation strategies including input validation, output encoding, and proper content sanitization mechanisms. The recommended approach involves implementing strict validation of all user input data, applying proper HTML escaping techniques before rendering content, and ensuring that the application employs robust sanitization libraries to filter out potentially malicious scripts. Additionally, implementing security headers such as Content Security Policy can provide an additional layer of protection against XSS attacks. The vulnerability serves as a reminder of the critical importance of regular security assessments and the necessity of keeping web applications updated with the latest security patches. Organizations should also consider implementing web application firewalls and monitoring systems to detect and prevent exploitation attempts. This vulnerability underscores the need for comprehensive security training for developers and the implementation of secure coding practices that address common web application security flaws as outlined in OWASP Top Ten categories.