CVE-2012-6514 in Com Netinvoice
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in the nBill (com_netinvoice) component 2.3.2 for Joomla! allows remote attackers to inject arbitrary web script or HTML via the message parameter in an income action to administrator/index.php.
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Analysis
by VulDB Data Team • 02/09/2018
The CVE-2012-6514 vulnerability represents a critical cross-site scripting flaw within the nBill component version 2.3.2 for Joomla! platforms. This vulnerability specifically affects the administrator interface where the income action functionality processes user input through the message parameter. The flaw exists in the component's handling of unvalidated input data, creating an exploitable entry point for malicious actors to inject arbitrary web scripts or HTML code directly into the administrative interface.
The technical implementation of this vulnerability stems from insufficient input validation and output encoding within the nBill component's administrative functions. When administrators access the income action through administrator/index.php, the system fails to properly sanitize the message parameter, allowing attackers to craft malicious payloads that execute within the context of the administrator's browser session. This type of vulnerability falls under CWE-79 which specifically addresses cross-site scripting flaws due to improper neutralization of input during web page generation. The vulnerability is particularly dangerous because it targets the administrative interface rather than the frontend, providing attackers with elevated privileges and access to sensitive administrative functions.
The operational impact of CVE-2012-6514 extends far beyond simple script injection, as successful exploitation can lead to complete administrative compromise of Joomla! sites running the vulnerable nBill component. Attackers can leverage this vulnerability to execute arbitrary commands, modify or delete critical data, manipulate user accounts, and potentially establish persistent backdoors within the compromised system. The attack vector is particularly concerning because it requires no authentication to initiate the injection process, making it a server-side vulnerability that can be exploited through simple web requests. This aligns with ATT&CK technique T1059.007 which covers scripting languages for execution and demonstrates how attackers can leverage web application vulnerabilities to gain unauthorized access to administrative functions.
Mitigation strategies for CVE-2012-6514 require immediate action including upgrading to nBill component version 2.3.3 or later, which contains the necessary input validation patches. Organizations should also implement comprehensive input sanitization measures at multiple layers including web application firewalls, output encoding for all dynamic content, and regular security audits of installed Joomla! components. Additionally, implementing the principle of least privilege for administrative accounts and enabling two-factor authentication can significantly reduce the potential impact of successful exploitation. Security monitoring should focus on detecting unusual administrative activities and anomalous requests to administrator/index.php endpoints. The vulnerability serves as a reminder of the critical importance of keeping content management systems and their components updated, as this flaw was patched in subsequent releases and demonstrates how seemingly minor input validation issues can create severe security implications in administrative interfaces.