CVE-2008-0093 in eTicket
Summary
by MITRE
Multiple cross-site scripting (XSS) vulnerabilities in newticket.php in eTicket 1.5.5.2, and 1.5.6 RC2 and RC3, allow remote attackers to inject arbitrary web script or HTML via the (1) Name and (2) Subject parameters.
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Analysis
by VulDB Data Team • 09/14/2018
The vulnerability identified as CVE-2008-0093 represents a critical cross-site scripting flaw affecting the eTicket 1.5.5.2 and 1.5.6 RC2 and RC3 software versions. This vulnerability specifically targets the newticket.php component within the eTicket application, which serves as the primary interface for users to submit new support tickets. The flaw resides in the insufficient input validation and output encoding mechanisms implemented for user-supplied data, creating a pathway for malicious actors to execute arbitrary web scripts or HTML code within the context of other users' browsers.
The technical exploitation of this vulnerability occurs through two primary vectors: the Name parameter and the Subject parameter of the ticket submission form. When users enter malicious content into either of these fields, the application fails to properly sanitize or encode the input before processing it. This allows attackers to inject JavaScript code or HTML markup that gets executed when other users view the ticket information. The vulnerability maps directly 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, making it susceptible to execution within the browser context.
The operational impact of this vulnerability extends beyond simple script execution, as it provides attackers with the capability to perform session hijacking, steal sensitive information, redirect users to malicious websites, or even modify the content displayed to other users. Since the vulnerability affects the ticket submission interface, it can be exploited by anyone who can access the application's ticket creation functionality, potentially compromising the entire user base that interacts with the support system. This creates a significant risk for organizations that rely on the eTicket system for customer support, as attackers could gain unauthorized access to sensitive user data or manipulate support ticket information.
The exploitation of this vulnerability aligns with ATT&CK technique T1566.001 which covers "Phishing with Social Engineering" and T1566.002 which addresses "Spearphishing with Social Engineering." Attackers could craft malicious tickets with embedded scripts that execute when administrators or other users view the ticket details, potentially leading to credential theft or privilege escalation. Organizations should implement comprehensive input validation measures including proper HTML escaping, implementing Content Security Policy headers, and conducting regular security testing to identify similar vulnerabilities in their web applications. The vulnerability demonstrates the critical importance of validating all user inputs and properly encoding output data to prevent XSS attacks, as outlined in OWASP Top Ten Project recommendations for web application security.