CVE-2017-9813 in Kaspersky
Summary
by MITRE
In Kaspersky Anti-Virus for Linux File Server before Maintenance Pack 2 Critical Fix 4 (version 8.0.4.312), the scriptName parameter of the licenseKeyInfo action method is vulnerable to cross-site scripting (XSS).
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Analysis
by VulDB Data Team • 01/05/2025
The vulnerability identified as CVE-2017-9813 affects Kaspersky Anti-Virus for Linux File Server version 8.0.4.312 and earlier, representing a significant security flaw that exposes the system to cross-site scripting attacks. This issue resides within the licenseKeyInfo action method where the scriptName parameter fails to properly sanitize user input, creating an avenue for malicious actors to inject arbitrary JavaScript code into the application's response. The vulnerability stems from inadequate input validation and output encoding practices that are fundamental to preventing XSS attacks in web applications. According to CWE-79, this represents a classic cross-site scripting vulnerability where the application fails to properly escape or filter user-supplied data before incorporating it into dynamically generated web content, making it susceptible to exploitation by attackers who can manipulate the scriptName parameter to execute malicious scripts in the context of other users' browsers.
The operational impact of this vulnerability extends beyond simple data theft or session hijacking, as it can enable attackers to perform a wide range of malicious activities within the targeted environment. An attacker who successfully exploits this XSS vulnerability could potentially execute arbitrary code in the context of authenticated users, leading to complete system compromise or unauthorized access to sensitive security information. The vulnerability affects the web interface of the Kaspersky Anti-Virus for Linux File Server, which means that any user who accesses the administrative web console could be exposed to this attack vector. The attack typically follows the pattern outlined in the ATT&CK framework under T1059.001 for command and script injection techniques, where malicious payloads are delivered through web-based interfaces to gain unauthorized access to system resources.
Mitigation strategies for CVE-2017-9813 should prioritize immediate remediation through the installation of Maintenance Pack 2 Critical Fix 4 or later versions that address this specific vulnerability. Organizations should implement comprehensive input validation mechanisms that sanitize all user-supplied parameters, particularly those used in web application interfaces. The security controls should include proper output encoding of all dynamic content to prevent script execution, as recommended by OWASP secure coding practices. Additionally, network segmentation and access controls should be implemented to limit exposure of the vulnerable web interface to trusted users only, reducing the attack surface. Regular security assessments and penetration testing should be conducted to identify similar vulnerabilities in other web applications within the organization's infrastructure, as XSS vulnerabilities often occur in similar contexts where user input is not properly validated or escaped. The fix for this vulnerability aligns with industry standards for secure coding practices that emphasize the importance of input validation and output encoding as primary defenses against cross-site scripting attacks.