CVE-2012-4989 in OpenX
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in admin/plugin-index.php in OpenX 2.8.10 before revision 81823 allows remote attackers to inject arbitrary web script or HTML via the parent parameter in an info action.
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Analysis
by VulDB Data Team • 02/04/2025
The vulnerability identified as CVE-2012-4989 represents a critical cross-site scripting flaw within the OpenX advertising platform version 2.8.10, specifically affecting the admin/plugin-index.php component. This vulnerability arises from insufficient input validation and output sanitization mechanisms within the application's administrative interface, creating a pathway for malicious actors to execute arbitrary web scripts or HTML code within the context of authenticated user sessions. The flaw manifests when the application processes the parent parameter within the info action, failing to properly sanitize user-supplied input before rendering it in the web response.
The technical nature of this vulnerability aligns with CWE-79, which categorizes cross-site scripting as a code injection flaw where untrusted data is embedded into web pages viewed by other users. The vulnerability exists in the administrative plugin management interface of OpenX, where the parent parameter is directly incorporated into the page output without adequate sanitization measures. Attackers can exploit this by crafting malicious payloads in the parent parameter that, when processed by the vulnerable script, get executed in the browser of any user who views the affected page. This creates a persistent threat vector where malicious scripts can steal session cookies, redirect users to phishing sites, or perform unauthorized actions on behalf of authenticated users.
The operational impact of this vulnerability is significant, particularly given that OpenX is a widely deployed ad server platform used by organizations for digital advertising management. An attacker who successfully exploits this vulnerability gains the ability to execute arbitrary code within the context of the administrative interface, potentially leading to complete compromise of the ad server. This could result in unauthorized modification of advertising campaigns, insertion of malicious advertisements, theft of sensitive advertising data, and use of the compromised system for further attacks against end users. The vulnerability affects authenticated users with administrative privileges, making it particularly dangerous as it can be leveraged to escalate privileges or maintain persistent access to the system.
Mitigation strategies for this vulnerability should prioritize immediate patching of the OpenX platform to revision 81823 or later, which contains the necessary fixes for the input validation issue. Organizations should implement proper input sanitization techniques including HTML entity encoding and strict parameter validation before any user-supplied data is processed or rendered. Network segmentation and access controls should be enforced to limit administrative access to trusted personnel only. Additionally, implementing Content Security Policy (CSP) headers can provide an additional layer of defense against XSS attacks by restricting script execution sources. Regular security audits and vulnerability assessments should be conducted to identify similar issues in other components of the system, while security monitoring should be enhanced to detect suspicious parameter values in administrative interfaces. The vulnerability demonstrates the importance of input validation in web applications and aligns with ATT&CK technique T1059.007 for scripting languages and T1566.001 for spearphishing attachments, highlighting the need for comprehensive defensive measures across multiple security domains.