CVE-2008-2962 in MyBlog
Summary
by MITRE
Multiple cross-site scripting (XSS) vulnerabilities in MyBlog allow remote attackers to inject arbitrary web script or HTML via the (1) s and (2) sort parameters to index.php, and the (3) id parameter to post.php.
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Analysis
by VulDB Data Team • 10/29/2024
The vulnerability identified as CVE-2008-2962 represents a critical security flaw in the MyBlog content management system that exposes users to persistent cross-site scripting attacks. This vulnerability affects multiple parameters across different script files within the application, creating a broad attack surface that malicious actors can exploit to execute arbitrary code in the context of a victim's browser. The specific parameters affected include the s and sort parameters in the index.php file, as well as the id parameter in the post.php file, all of which fail to properly sanitize user input before processing.
This vulnerability falls under the CWE-79 category of Cross-Site Scripting, which is a fundamental web application security weakness that occurs when an application includes untrusted data in web pages without proper validation or encoding. The attack vector leverages the fact that the MyBlog application does not implement adequate input sanitization mechanisms for the specified parameters, allowing attackers to inject malicious scripts that can be executed when other users view the affected pages. The vulnerability is classified as remote because attackers can exploit it without requiring physical access to the system or any special privileges within the application environment.
The operational impact of this vulnerability extends beyond simple script injection, as it can enable attackers to perform a wide range of malicious activities including session hijacking, credential theft, defacement of web content, and redirection to malicious websites. When users browse pages that contain the injected scripts, their browsers execute the malicious code, potentially leading to unauthorized access to their accounts, data exfiltration, or further compromise of their systems. The vulnerability affects the core functionality of the blog platform, making it particularly dangerous as it can impact all users who interact with the affected pages, regardless of their role or privileges within the application.
From a threat modeling perspective, this vulnerability aligns with the ATT&CK technique T1566.001 which involves the use of malicious web content to gain initial access to systems. The attack can be executed through various methods including phishing campaigns where attackers craft malicious URLs containing the XSS payloads, or by exploiting the vulnerability in a more targeted manner through social engineering. Organizations using MyBlog should implement immediate mitigations including input validation and output encoding for all user-supplied parameters, proper parameter sanitization, and the implementation of Content Security Policies to prevent unauthorized script execution. The vulnerability also highlights the importance of regular security audits and the adoption of secure coding practices that follow established security frameworks such as the OWASP Top Ten and the ISO/IEC 27001 security standards to prevent similar issues in future development cycles.