CVE-2012-2381 in Roller
Summary
by MITRE
Multiple cross-site scripting (XSS) vulnerabilities in Apache Roller before 5.0.1 allow remote authenticated users to inject arbitrary web script or HTML by leveraging the blogger role.
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Analysis
by VulDB Data Team • 02/17/2019
Apache Roller before version 5.0.1 contained multiple cross-site scripting vulnerabilities that posed significant security risks to web applications utilizing this content management system. These vulnerabilities specifically affected authenticated users with the blogger role, creating a pathway for remote attackers to execute malicious scripts within the context of other users' browsers. The flaw stemmed from inadequate input validation and output encoding mechanisms within the application's processing of user-supplied data, particularly in areas where blog content and administrative functions were handled. The vulnerability allowed attackers to inject arbitrary web script or HTML code that would execute when other users viewed affected pages, potentially leading to session hijacking, data theft, or further exploitation of the compromised systems.
The technical implementation of these XSS vulnerabilities occurred due to insufficient sanitization of user inputs across multiple endpoints within the Roller platform. Attackers with blogger privileges could exploit this weakness by submitting malicious payloads through blog post content, comments, or administrative interfaces that were not properly escaped or validated before being rendered in web pages. This flaw aligns with CWE-79, which specifically addresses cross-site scripting vulnerabilities resulting from improper input validation and output encoding. The vulnerability represents a classic case of reflected and stored XSS attacks, where malicious scripts could be stored in the application's database and executed whenever affected pages were accessed by other users.
The operational impact of these vulnerabilities extended beyond simple script injection, creating potential for severe consequences within compromised web environments. An attacker with blogger privileges could manipulate content to redirect users to malicious sites, steal session cookies, or perform actions on behalf of authenticated users. This threat was particularly concerning because it leveraged legitimate user roles within the application, making detection more difficult and exploitation more plausible. The vulnerabilities affected not only individual blog posts but also administrative interfaces, potentially allowing attackers to escalate privileges or compromise the entire application. Organizations using affected versions of Roller faced risks of data exfiltration, unauthorized access to user accounts, and potential compromise of the broader web infrastructure.
Mitigation strategies for CVE-2012-2381 required immediate patching of the Apache Roller application to version 5.0.1 or later, which addressed the input validation and output encoding issues. System administrators should have implemented proper input sanitization measures, including the use of HTML escaping libraries and content security policies to prevent script execution. The implementation of proper access controls and role-based permissions helped limit the impact of compromised blogger accounts. Organizations were advised to conduct comprehensive security assessments of their Roller installations, review user access privileges, and monitor for suspicious activities in web server logs. Additionally, regular security updates and vulnerability scanning processes became essential practices to maintain protection against similar vulnerabilities in the future. This vulnerability demonstrated the critical importance of input validation and output encoding in web applications, aligning with ATT&CK technique T1059.005 for command and scripting interpreter usage in web-based attacks.