CVE-2009-3155 in Com Aclassf
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in gmap.php in the Almond Classifieds (com_aclassf) component 7.5 for Joomla! allows remote attackers to inject arbitrary web script or HTML via the addr parameter.
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Analysis
by VulDB Data Team • 12/07/2024
The vulnerability identified as CVE-2009-3155 represents a critical cross-site scripting flaw within the Almond Classifieds component version 7.5 for Joomla! platforms. This security weakness resides in the gmap.php script which processes user input through the addr parameter, creating an avenue for malicious actors to execute arbitrary web scripts or HTML code within the context of affected users' browsers. The vulnerability stems from insufficient input validation and output encoding practices that fail to properly sanitize user-supplied data before rendering it within web pages.
The technical implementation of this XSS vulnerability occurs when the addr parameter received by gmap.php is directly incorporated into the page output without adequate sanitization or encoding measures. Attackers can craft malicious payloads that, when executed, can steal session cookies, redirect users to phishing sites, or perform actions on behalf of authenticated users. This particular flaw falls under CWE-79 which specifically addresses Cross-Site Scripting vulnerabilities where input data is not properly validated or encoded before being rendered in web applications. The vulnerability demonstrates poor input handling practices that violate fundamental web security principles.
The operational impact of this vulnerability extends beyond simple data theft or defacement, as it can enable sophisticated attacks such as session hijacking, credential theft, and the execution of malicious code within user browsers. When exploited, the vulnerability allows attackers to manipulate the functionality of the Joomla! site and potentially gain unauthorized access to user accounts. The attack vector is particularly concerning because it requires minimal privileges and can be executed through simple URL manipulation, making it accessible to attackers with basic technical knowledge. This vulnerability directly aligns with ATT&CK technique T1531 which involves the use of malicious scripts to gain access to user sessions and perform unauthorized actions.
Mitigation strategies for CVE-2009-3155 should prioritize immediate patching of the Almond Classifieds component to version 7.6 or later, which contains the necessary security fixes. Organizations should implement comprehensive input validation and output encoding mechanisms to prevent similar vulnerabilities in other components. Security measures including web application firewalls, content security policies, and regular security audits can provide additional protection layers. The vulnerability highlights the importance of proper parameter sanitization and demonstrates how seemingly minor input handling flaws can create significant security risks. System administrators should also consider implementing security monitoring to detect potential exploitation attempts and ensure that all third-party Joomla! extensions are kept current with security patches.