CVE-2004-1499 in Helm Control Panel
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in the compose message form in HELM 3.1.19 and earlier allows remote attackers to execute arbitrary web script or HTML via the Subject field.
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Analysis
by VulDB Data Team • 08/13/2024
The vulnerability identified as CVE-2004-1499 represents a critical cross-site scripting flaw within the HELM 3.1.19 web-based email management system and earlier versions. This vulnerability exists in the compose message form functionality where user input is not properly sanitized before being rendered back to the browser. The specific weakness occurs in the Subject field processing, which fails to validate or escape special characters that could be interpreted as executable script code by web browsers. This allows remote attackers to inject malicious HTML content that executes in the context of other users' browsers when they view the affected message. The vulnerability falls under the CWE-79 category of Cross-Site Scripting, specifically representing a reflected XSS attack vector where malicious input is immediately reflected back to the user without proper sanitization.
The technical exploitation of this vulnerability requires an attacker to craft a malicious Subject line containing embedded script code that will be executed when other users view the email message. The attack typically involves embedding javascript code within HTML tags such as <script> or using event handlers like onclick or onload attributes. When a victim accesses the compromised email message, their browser executes the injected script in the context of the HELM application, potentially leading to session hijacking, credential theft, or redirection to malicious websites. The vulnerability affects the web-based interface of HELM, which is commonly used for managing email accounts and domains, making it a significant threat to email administrators and users who rely on this platform for communication.
The operational impact of CVE-2004-1499 extends beyond simple script execution as it can enable sophisticated attacks against email infrastructure. Attackers can leverage this vulnerability to steal session cookies, redirect users to phishing sites, or even escalate privileges within the email management system. The reflected nature of the attack means that the malicious code does not need to be stored on the server, making detection more difficult and allowing for targeted attacks against specific users. This vulnerability particularly affects organizations that use HELM for email administration, as it undermines the security of the entire email ecosystem. The attack vector is relatively simple to exploit, requiring only a basic understanding of HTML and javascript injection techniques, which makes it a popular target for both skilled attackers and automated exploit tools.
Mitigation strategies for this vulnerability should include immediate input validation and output encoding within the HELM application. The system must implement proper HTML escaping for all user-supplied content, particularly in fields that are rendered back to the browser without sanitization. Security patches should be applied to upgrade from HELM 3.1.19 and earlier versions to supported releases that include proper input validation mechanisms. Organizations should also consider implementing content security policies that restrict script execution within the application context. The remediation aligns with ATT&CK technique T1566.001 for credential access through phishing and T1059.007 for scripting through web applications. Network segmentation and monitoring for suspicious email traffic patterns can provide additional detection capabilities, while user education about suspicious email content helps reduce successful exploitation rates. Regular security assessments and input validation reviews should be implemented to prevent similar vulnerabilities in future development cycles.