CVE-2006-3095 in iPostMX 2005
Summary
by MITRE
Multiple cross-site scripting (XSS) vulnerabilities in iPostMX 2005 2.0 and earlier allow remote attackers to inject arbitrary web script or HTML via the RETURNURL parameter in (1) userlogin.cfm and (2) account.cfm.
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Analysis
by VulDB Data Team • 09/20/2017
The vulnerability identified as CVE-2006-3095 represents a critical cross-site scripting flaw affecting iPostMX 2005 version 2.0 and earlier implementations. This vulnerability resides within the web application's authentication and account management interfaces, specifically targeting the RETURNURL parameter handling in two key files: userlogin.cfm and account.cfm. The flaw allows remote attackers to execute malicious scripts within the context of authenticated user sessions, potentially compromising user data and system integrity.
The technical exploitation of this vulnerability occurs through improper input validation and output encoding mechanisms within the iPostMX application. When the application processes the RETURNURL parameter without adequate sanitization, it fails to properly escape or validate user-supplied input before incorporating it into dynamic web content. This creates an environment where attacker-controlled data can be interpreted as executable script code rather than benign input, enabling the execution of arbitrary web scripts in the victim's browser context.
From an operational impact perspective, this vulnerability presents significant risks to both individual users and organizational security postures. Attackers can leverage this flaw to steal session cookies, perform unauthorized actions on behalf of users, redirect victims to malicious sites, or harvest sensitive information from authenticated sessions. The vulnerability affects the core authentication and account management functionality of the application, potentially allowing attackers to escalate privileges or gain persistent access to user accounts. The remote nature of the attack means that exploitation does not require physical access to the system or insider knowledge of the internal network structure.
The vulnerability aligns with CWE-79, which describes cross-site scripting flaws in web applications, and maps to several ATT&CK techniques including T1566 for credential access through social engineering and T1071 for application layer protocol usage. Organizations using iPostMX 2005 or earlier versions face heightened risk of successful exploitation due to the widespread use of this platform in enterprise environments. The vulnerability demonstrates poor input validation practices that violate fundamental web security principles and represents a classic example of how insufficient output encoding can lead to severe security implications.
Mitigation strategies for CVE-2006-3095 require immediate implementation of proper input validation and output encoding mechanisms. Organizations should implement strict parameter validation for the RETURNURL field, ensuring that all user-supplied input is properly sanitized and escaped before being incorporated into web responses. The recommended approach involves using established encoding libraries and implementing proper context-aware output encoding for all dynamic content. Additionally, organizations should consider implementing web application firewalls and input validation rules to prevent malicious payloads from reaching the vulnerable application components. The most effective long-term solution involves upgrading to supported versions of iPostMX that have addressed these security concerns through proper code review and security testing practices.