CVE-2003-0303 in Helpdesk
Summary
by MITRE
SQL injection vulnerability in one||zero (aka One or Zero) Helpdesk 1.4 rc4 allows remote attackers to modify arbitrary ticket number descriptions via the sg parameter.
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Analysis
by VulDB Data Team • 01/05/2025
The vulnerability identified as CVE-2003-0303 represents a critical sql injection flaw within the one||zero helpdesk application version 1.4 rc4. This security weakness specifically affects the ticket management functionality where the sg parameter is improperly validated and sanitized before being incorporated into database queries. The flaw stems from inadequate input filtering mechanisms that fail to properly escape or validate user-supplied data, creating an avenue for malicious actors to manipulate the underlying database operations through crafted input sequences.
The technical exploitation of this vulnerability occurs when remote attackers manipulate the sg parameter to inject malicious sql commands into the application's database layer. This parameter, which is intended to handle ticket number descriptions, becomes a vector for unauthorized database access when the application fails to implement proper parameterized queries or input sanitization. The vulnerability is classified under CWE-89 sql injection, which represents one of the most prevalent and dangerous web application security flaws. Attackers can leverage this weakness to modify, delete, or extract sensitive data from the helpdesk database, potentially compromising the integrity and confidentiality of all ticket-related information.
The operational impact of this vulnerability extends beyond simple data modification, as it enables attackers to gain unauthorized access to the helpdesk system's database backend. This allows for arbitrary code execution within the database context, potentially leading to complete system compromise. The implications are particularly severe for helpdesk environments where sensitive customer information, support tickets, and system logs are stored. The vulnerability affects the availability, integrity, and confidentiality of the application's data, making it a critical concern for organizations relying on this helpdesk solution. This weakness aligns with ATT&CK technique T1071.004 application layer protocol, as it exploits improper input validation in web application protocols to achieve unauthorized database access.
Mitigation strategies for this vulnerability require immediate implementation of input validation and parameterized query mechanisms. Organizations must ensure that all user-supplied parameters, particularly those used in database operations, undergo rigorous sanitization before processing. The application should implement proper escape sequence handling for special characters and utilize prepared statements or parameterized queries to prevent sql injection attacks. Additionally, input length restrictions and whitelisting of acceptable characters should be enforced for the sg parameter. System administrators should also implement proper access controls and monitoring mechanisms to detect unauthorized database access attempts, as outlined in the NIST cybersecurity framework. Regular security assessments and code reviews are essential to identify and remediate similar vulnerabilities in legacy applications, with particular attention to the absence of modern security controls that would have prevented such flaws in contemporary development practices.