CVE-2002-0388 in Mailman
Summary
by MITRE
Cross-site scripting vulnerabilities in Mailman before 2.0.11 allow remote attackers to execute script via (1) the admin login page, or (2) the Pipermail index summaries.
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Analysis
by VulDB Data Team • 08/10/2024
The vulnerability described in CVE-2002-0388 represents a critical cross-site scripting flaw affecting the Mailman mailing list management system prior to version 2.0.11. This vulnerability resides in the web interface components of Mailman, specifically impacting two distinct areas of the application's user authentication and message display functionality. The flaw allows remote attackers to inject malicious scripts into web pages viewed by other users, potentially enabling session hijacking, credential theft, or arbitrary code execution within the victim's browser context. The vulnerability's impact extends beyond simple data theft as it can compromise the entire user session and potentially provide attackers with elevated privileges within the mailing list management system.
The technical implementation of this cross-site scripting vulnerability occurs through improper input validation and output encoding within the Mailman web interface. Attackers can exploit this weakness by crafting malicious input strings that are then reflected back to users in the admin login page or Pipermail index summaries without proper sanitization. The vulnerability specifically affects the authentication mechanisms and message listing features, making it particularly dangerous as it can target both administrative interfaces and public message archives. This flaw directly maps to CWE-79, which defines Cross-site Scripting as a weakness where untrusted data is sent to a web browser without proper validation or encoding, allowing malicious scripts to be executed in the context of the victim's browser session.
The operational impact of this vulnerability is significant for organizations relying on Mailman for email list management and communication. Attackers can leverage this weakness to steal administrator credentials, manipulate mailing list configurations, or inject malicious content into message archives that could affect numerous users. The vulnerability's exploitation requires minimal technical expertise, making it particularly dangerous in environments where Mailman is widely used for internal communications. Organizations with administrative access to the mailing list system could be compromised, potentially leading to unauthorized access to sensitive email communications, message manipulation, or even complete system takeover if the attacker can escalate privileges through the compromised administrative session.
Mitigation strategies for CVE-2002-0388 should prioritize immediate patching of Mailman installations to version 2.0.11 or later, which contains the necessary input validation and output encoding fixes. Organizations should also implement additional defensive measures including web application firewalls that can detect and block malicious script injection attempts, regular security scanning of web applications, and comprehensive input validation policies that sanitize all user-supplied data before processing. Network segmentation and access controls should be implemented to limit exposure of vulnerable Mailman installations, while security awareness training for administrators can help prevent social engineering attacks that might exploit this vulnerability. The remediation process should include thorough testing of patched systems to ensure that the vulnerability has been completely eliminated and that legitimate functionality remains intact, following principles aligned with the ATT&CK framework's defense evasion techniques that attackers might use to exploit such vulnerabilities.