CVE-2006-3305 in UebiMiau
Summary
by MITRE
Multiple cross-site scripting (XSS) vulnerabilities in UebiMiau Webmail 2.7.10, and 2.7.2 and earlier allow remote attackers to inject arbitrary web script or HTML via the (1) f_user parameter in index.php, the (2) pag parameter in messages.php, or the (3) lid, (4) tid, and (5) sid parameters in error.php.
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Analysis
by VulDB Data Team • 07/30/2018
The CVE-2006-3305 vulnerability represents a critical cross-site scripting flaw affecting UebiMiau Webmail versions 2.7.10 and earlier, including the 2.7.2 release. This vulnerability manifests through multiple attack vectors within the webmail application's parameter handling mechanisms, creating a significant security risk for users who interact with the system through web interfaces. The vulnerability is categorized under CWE-79 as a failure to sanitize user input, specifically in the context of web application security where malicious scripts can be injected into web pages viewed by other users. The attack surface is particularly concerning given that UebiMiau Webmail operates as a web-based email client that handles sensitive user communications and personal data.
The technical implementation of this vulnerability stems from inadequate input validation and sanitization within the application's core PHP scripts. Attackers can exploit the vulnerability by crafting malicious payloads that target specific parameters in three distinct files: index.php where the f_user parameter is susceptible, messages.php where the pag parameter presents an attack vector, and error.php where the lid, tid, and sid parameters all contain exploitable input fields. These parameters are directly incorporated into the web application's output without proper HTML encoding or sanitization, allowing attackers to inject arbitrary JavaScript code that executes within the victim's browser context. The vulnerability demonstrates a classic XSS flaw where user-supplied data flows directly into HTML output, bypassing the application's security controls and creating a persistent threat vector.
The operational impact of CVE-2006-3305 extends beyond simple script injection, as it enables attackers to perform various malicious activities including session hijacking, credential theft, and data exfiltration from authenticated users. When a victim accesses a compromised web page or receives an email containing malicious content, the injected JavaScript code executes within their browser session, potentially allowing attackers to steal session cookies, redirect users to malicious sites, or modify the application's interface to deceive users. The vulnerability's persistence is particularly dangerous as it affects the application's core functionality where users regularly interact with email content, making exploitation more likely and the potential damage more significant. This vulnerability directly maps to ATT&CK technique T1566.001 for the initial access phase and T1059.007 for the execution phase of the attack lifecycle.
Mitigation strategies for CVE-2006-3305 require immediate implementation of proper input validation and output encoding mechanisms throughout the application's codebase. The most effective approach involves sanitizing all user-supplied input parameters before they are processed or displayed in web responses, implementing proper HTML entity encoding for dynamic content, and establishing a comprehensive content security policy to prevent script execution. Organizations should also consider implementing web application firewalls to detect and block suspicious parameter values, conducting regular security code reviews to identify similar vulnerabilities, and ensuring that all webmail applications are updated to patched versions that address these input validation flaws. The vulnerability highlights the importance of secure coding practices and demonstrates how even minor input handling oversights can create significant security exposures in web applications.