CVE-2012-4259 in Xphone Unified Communications 2011
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in the contacts in (1) XPhone UC Web and the (2) web frontend for XPhone Virtual Directory in C4B XPhone Unified Communications (UC) 2011 Web 4.1.890S R1 allows remote attackers to inject arbitrary web script or HTML via the company name. NOTE: some of these details are obtained from third party information.
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Analysis
by VulDB Data Team • 06/21/2024
The CVE-2012-4259 vulnerability represents a critical cross-site scripting flaw discovered in C4B XPhone Unified Communications 2011 Web 4.1.890S R1, specifically affecting both the XPhone UC Web component and the web frontend for XPhone Virtual Directory. This vulnerability resides in the handling of user-supplied input within the company name field, creating a pathway for remote attackers to execute malicious web scripts or HTML code within the context of affected users' browsers. The flaw demonstrates a classic input validation weakness where the application fails to properly sanitize or escape user-provided data before rendering it in web responses, making it susceptible to persistent XSS attacks that can compromise user sessions and execute unauthorized actions.
The technical exploitation of this vulnerability occurs when an attacker crafts a malicious company name containing embedded script code and submits it through the contact management interface. The vulnerable application processes this input without adequate sanitization, allowing the malicious payload to be stored in the system and subsequently executed whenever the affected page is rendered to other users. This type of vulnerability falls under CWE-79 which specifically addresses Cross-Site Scripting flaws, and aligns with ATT&CK technique T1059.007 for Command and Scripting Interpreter. The attack vector is particularly concerning as it leverages legitimate application functionality to deliver malicious content, making detection more difficult and the attack more effective.
The operational impact of this vulnerability extends beyond simple script execution, potentially enabling attackers to steal session cookies, perform unauthorized actions on behalf of users, redirect victims to malicious sites, or even establish persistent backdoors within the communication environment. Given that this affects unified communications platforms, the consequences could be severe for enterprise environments where such systems handle sensitive business communications and personal data. The vulnerability compromises the integrity of the user interface and can lead to complete session hijacking, data exfiltration, and potential lateral movement within networked environments where unified communications systems are integrated with other enterprise applications.
Mitigation strategies for CVE-2012-4259 should focus on implementing comprehensive input validation and output encoding mechanisms throughout the application's data processing pipeline. Organizations should deploy proper HTML escaping and sanitization routines specifically for the company name field and other user input areas, ensuring that any potentially malicious content is neutralized before storage or rendering. Additionally, implementing Content Security Policy headers, using secure coding practices for input handling, and conducting regular security assessments of unified communications platforms are essential defensive measures. The vulnerability also highlights the importance of keeping unified communications systems updated and patched, as this flaw was present in a specific version of the software and likely addressed in subsequent releases through proper input validation implementations.