CVE-2008-6478 in Virtuozzo Containers
Summary
by MITRE
Cross-site request forgery (CSRF) vulnerability in the file manager in the VZPP web interface for Parallels Virtuozzo 365.6.swsoft (build 4.0.0-365.6.swsoft) and 25.4.swsoft (build 3.0.0-25.4.swsoft) allows remote attackers to create and delete arbitrary files as the administrator via a link or IMG tag to (1) create-file and (2) list-control in vz/cp/vzdir/infrman/envs/files/; or modify system configuration via the path parameter to vz/cp/vzdir/infrman/envs/files/index.
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Analysis
by VulDB Data Team • 08/24/2025
The CVE-2008-6478 vulnerability represents a critical cross-site request forgery flaw in the VZPP web interface of Parallels Virtuozzo platforms, specifically affecting versions 365.6.swsoft build 4.0.0-365.6.swsoft and 25.4.swsoft build 3.0.0-25.4.swsoft. This vulnerability operates at the application layer and stems from the absence of proper anti-CSRF mechanisms within the file management components of the web interface, creating a significant security risk that enables malicious actors to perform unauthorized administrative actions. The flaw manifests through the manipulation of HTTP requests that are automatically executed by user browsers when they visit malicious websites or click on compromised links, fundamentally undermining the principle of user consent in critical system operations. The vulnerability is classified under CWE-352, which specifically addresses Cross-Site Request Forgery, and aligns with ATT&CK technique T1566.001 for initial access through spearphishing attachments, demonstrating how this weakness can be exploited to establish persistent control over virtualized environments.
The technical implementation of this vulnerability occurs within the file management subsystem of the VZPP interface, where specific endpoints lack proper validation of request origins or require authentication tokens to prevent unauthorized operations. Attackers can craft malicious web pages containing links or image tags that automatically submit requests to the vulnerable endpoints at vz/cp/vzdir/infrman/envs/files/create-file and vz/cp/vzdir/infrman/envs/files/list-control, enabling them to create or delete arbitrary files with administrator privileges. Additionally, the vulnerability extends to the index endpoint where the path parameter can be manipulated to modify system configuration settings, allowing for broader impact beyond simple file operations. The absence of anti-CSRF tokens or referer header validation creates a scenario where authenticated sessions can be hijacked through social engineering techniques, as users' browsers automatically submit requests to the vulnerable system without their knowledge. This exploitation mechanism directly violates the principle of least privilege and enables attackers to perform operations that should only be executable by authenticated administrators, potentially leading to complete system compromise.
The operational impact of this vulnerability extends far beyond simple file manipulation, as it provides attackers with the capability to fundamentally alter system configurations and potentially gain persistent access to virtualized environments. An attacker could create malicious files that serve as backdoors, delete critical system files to disrupt operations, or modify configuration parameters to redirect traffic or disable security features. The vulnerability's exploitation requires minimal technical skill, as it can be accomplished through simple HTML pages that leverage the automatic request submission behavior of web browsers, making it particularly dangerous in environments where users might browse untrusted websites. This weakness creates a persistent threat vector that can be exploited across multiple users within the same administrative domain, potentially leading to complete compromise of the virtualization platform and all hosted virtual machines. The vulnerability's impact is amplified by the fact that it affects the core administrative interface, making it a prime target for attackers seeking to establish long-term access to critical infrastructure.
Mitigation strategies for CVE-2008-6478 should focus on implementing robust anti-CSRF protection mechanisms within the web application, including the mandatory use of anti-CSRF tokens for all state-changing operations and proper validation of request origins. Organizations should immediately apply available patches or updates from Parallels to address this vulnerability, as the vendor likely released security fixes to implement proper authentication token validation. Network segmentation and access controls should be strengthened to limit exposure of the VZPP interface to trusted networks only, while monitoring systems should be configured to detect unusual file creation or modification patterns. Security awareness training for administrators is crucial to prevent social engineering attacks that exploit this vulnerability, as users may inadvertently trigger malicious requests through email attachments or compromised websites. The implementation of web application firewalls and proper input validation can provide additional layers of protection, while regular security audits should verify that all administrative endpoints properly implement CSRF protection mechanisms. Organizations should also consider implementing multi-factor authentication for administrative access and establish strict access control policies that limit the number of users with administrative privileges, reducing the potential impact of successful exploitation attempts.