CVE-2017-9810 in Kaspersky
Summary
by MITRE
There are no Anti-CSRF tokens in any forms on the web interface in Kaspersky Anti-Virus for Linux File Server before Maintenance Pack 2 Critical Fix 4 (version 8.0.4.312). This would allow an attacker to submit authenticated requests when an authenticated user browses an attacker-controlled domain.
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Analysis
by VulDB Data Team • 01/06/2025
The vulnerability described in CVE-2017-9810 represents a critical security flaw in Kaspersky Anti-Virus for Linux File Server versions prior to Maintenance Pack 2 Critical Fix 4. This issue stems from the complete absence of Anti-CSRF (Cross-Site Request Forgery) tokens within the web interface forms of the security software. The vulnerability creates a significant attack surface that allows malicious actors to exploit the lack of token-based authentication verification mechanisms. Without proper CSRF protection, the system fails to validate that requests originate from legitimate authenticated users, making it susceptible to unauthorized operations performed on behalf of authenticated users.
This flaw directly relates to CWE-352, which specifically addresses Cross-Site Request Forgery vulnerabilities in web applications. The technical implementation error occurs at the web interface level where the application fails to generate and validate unique tokens for each user session. When an authenticated user accesses a malicious website or domain controlled by an attacker, the attacker can craft specially designed requests that will be automatically executed in the context of the authenticated user's session. The absence of CSRF tokens means there is no server-side validation mechanism to verify the authenticity of form submissions, allowing attackers to perform actions such as changing security settings, modifying user permissions, or executing administrative commands without proper authorization.
The operational impact of this vulnerability is severe as it essentially provides attackers with a pathway to hijack authenticated sessions and perform unauthorized administrative actions within the Kaspersky security environment. An attacker could exploit this weakness to gain persistent access to the file server's security management interface, potentially leading to complete compromise of the security infrastructure. The vulnerability affects the core authentication and authorization mechanisms of the web interface, undermining the trust model that should protect the system from unauthorized access. This represents a critical failure in the security architecture since the protection mechanisms designed to prevent unauthorized operations are entirely absent from the application's user interface.
The mitigation strategy for this vulnerability requires immediate deployment of the Maintenance Pack 2 Critical Fix 4 release from Kaspersky, which includes the implementation of proper CSRF token validation mechanisms. Organizations should also implement additional protective measures such as network segmentation, web application firewalls, and monitoring for suspicious authentication patterns. The fix addresses the root cause by introducing proper token generation and validation processes that ensure all form submissions are verified against legitimate user sessions. This vulnerability demonstrates the importance of implementing comprehensive security controls at all levels of application design and the critical need for regular security updates to address known vulnerabilities in enterprise security solutions. The ATT&CK framework categorizes this as a privilege escalation technique through web application exploitation, where the attacker leverages the absence of proper session validation to perform unauthorized administrative actions within the target environment.