CVE-2018-10051 in Supportdesk
Summary
by MITRE
iScripts SupportDesk v4.3 has XSS via the staff/inteligentsearchresult.php txtinteligentsearch parameter.
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Analysis
by VulDB Data Team • 01/24/2020
The vulnerability identified as CVE-2018-10051 affects iScripts SupportDesk version 4.3 and represents a cross-site scripting flaw that allows attackers to inject malicious scripts into web applications. This particular vulnerability resides within the staff/inteligentsearchresult.php component of the software, specifically targeting the txtinteligentsearch parameter which serves as an entry point for user input processing. The flaw demonstrates a classic weakness in web application security where user-supplied data is not properly sanitized or validated before being rendered back to users.
The technical implementation of this vulnerability stems from inadequate input validation and output encoding practices within the application's codebase. When the txtinteligentsearch parameter receives user input, the application fails to properly escape or sanitize special characters that could be interpreted as HTML or JavaScript code. This allows an attacker to craft malicious payloads that, when processed by the application, get executed in the context of other users' browsers who view the affected search results page. The vulnerability falls under CWE-79 which specifically addresses Cross-Site Scripting flaws in software applications.
The operational impact of this vulnerability extends beyond simple data theft or defacement. An attacker could leverage this XSS flaw to steal session cookies, redirect users to malicious websites, perform unauthorized actions on behalf of logged-in users, or even escalate privileges within the application's administrative functions. The affected environment represents a support desk system which typically handles sensitive customer information, making the potential damage more severe. Attackers could exploit this vulnerability to gain access to confidential support tickets, customer data, or internal communication channels that the support system manages.
From a threat modeling perspective, this vulnerability aligns with ATT&CK technique T1531 which involves the use of malicious code to compromise systems and maintain persistence. The attack chain would involve initial reconnaissance to identify the vulnerable parameter, crafting of malicious payloads, and subsequent exploitation to achieve unauthorized access. The vulnerability is particularly concerning because it affects the staff administrative interface, potentially allowing attackers to gain elevated privileges within the support system. Organizations using this software face significant risk as the attack surface includes not just the public-facing support portal but also the internal staff components that handle sensitive operational data.
Mitigation strategies for this vulnerability should include immediate implementation of proper input validation and output encoding mechanisms. The application code must sanitize all user inputs through proper escaping techniques before rendering them in HTML contexts. Additionally, implementing Content Security Policy headers can provide an additional layer of protection against XSS attacks. Regular security assessments and code reviews should be conducted to identify similar vulnerabilities in other parameters or components. The software vendor should release a patched version addressing this specific flaw, and organizations should prioritize upgrading to the latest secure version of iScripts SupportDesk. Security awareness training for developers on secure coding practices and regular vulnerability scanning of deployed applications can help prevent similar issues in the future.