CVE-2007-4087 in Video Share Enterprise
Summary
by MITRE
AlstraSoft Video Share Enterprise allows remote attackers to obtain sensitive information (the full path) via (1) a (quote) character in the category parameter to view_video.php, or (2) an XSS sequence in the UID parameter to (a) uprofile.php, (b) channel_detail.php, (c) uvideos.php, (d) groups_home.php, or (e) ufriends.php.
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Analysis
by VulDB Data Team • 10/27/2017
The vulnerability identified as CVE-2007-4087 affects AlstraSoft Video Share Enterprise, a web-based video sharing platform that enables users to upload, manage, and share video content. This security flaw represents a significant concern for organizations deploying this software, as it exposes critical system information and creates potential entry points for malicious actors. The vulnerability manifests through two distinct attack vectors that exploit input validation weaknesses in the application's parameter handling mechanisms.
The primary technical flaw involves improper input sanitization within the application's PHP scripts, specifically targeting the category parameter in view_video.php and the UID parameter in multiple user profile scripts. When attackers inject a quote character into the category parameter, the application fails to properly escape or validate this input, resulting in the exposure of the server's full file path. This type of information disclosure vulnerability aligns with CWE-200, which addresses the exposure of sensitive information to an unauthorized actor. The full path disclosure creates a foundation for further attacks as it provides attackers with critical system architecture information that can be leveraged for more sophisticated exploitation techniques.
The secondary vulnerability involves cross-site scripting (XSS) attacks through the UID parameter in several user-facing scripts including uprofile.php, channel_detail.php, uvideos.php, groups_home.php, and ufriends.php. These XSS vulnerabilities occur because the application does not properly validate or sanitize user input before rendering it in web pages. The ATT&CK framework categorizes this as a technique involving code injection, specifically targeting the web application layer where user-supplied data is processed and displayed. The XSS vulnerability allows attackers to execute malicious scripts in the context of other users' browsers, potentially leading to session hijacking, credential theft, or redirection to malicious sites.
The operational impact of these vulnerabilities extends beyond immediate information disclosure, as they create a pathway for more serious security incidents. The full path disclosure can reveal directory structures, file names, and potentially sensitive configuration information that would otherwise remain hidden from attackers. This information can be used to craft more targeted attacks against the application's underlying infrastructure or to identify other potential vulnerabilities within the system. The XSS capabilities enable persistent threats where attackers can maintain access to user sessions and potentially compromise the entire user base of the platform.
Organizations using AlstraSoft Video Share Enterprise should implement immediate mitigations including input validation and sanitization for all user-supplied parameters, particularly those used in URL query strings and form submissions. The application should employ proper escaping mechanisms for all output, implementing Content Security Policy headers to prevent XSS execution. Additionally, the system should be configured to remove or disable unnecessary file path information from error messages and response headers. Regular security audits and code reviews should be conducted to identify similar input validation vulnerabilities, with particular attention to the CWE-79 category which encompasses cross-site scripting issues. System administrators should also implement network monitoring to detect anomalous traffic patterns that might indicate exploitation attempts, while ensuring that all software components are kept up to date with the latest security patches. The vulnerability demonstrates the critical importance of input validation and output encoding practices in web application security, emphasizing the need for comprehensive security testing throughout the software development lifecycle.