CVE-2017-17892 in Video Sharing Script
Summary
by MITRE
Readymade Video Sharing Script has SQL Injection via the viewsubs.php chnlid parameter or the search_video.php search parameter.
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Analysis
by VulDB Data Team • 12/18/2019
The CVE-2017-17892 vulnerability affects the Readymade Video Sharing Script, a web application designed for video hosting and sharing platforms. This particular flaw represents a critical security weakness that allows attackers to execute unauthorized database operations through manipulated input parameters. The vulnerability manifests in two primary attack vectors within the application's codebase, specifically targeting the viewsubs.php script's chnlid parameter and the search_video.php script's search parameter. These endpoints serve as entry points for malicious actors seeking to exploit the underlying database communication mechanisms.
The technical exploitation of this vulnerability stems from insufficient input validation and sanitization within the application's backend processing logic. When user-supplied parameters are directly incorporated into SQL query construction without proper escaping or parameterization, the system becomes vulnerable to SQL injection attacks. The chnlid parameter in viewsubs.php and the search parameter in search_video.php both accept user input that flows directly into database queries without adequate security controls. This design flaw enables attackers to craft malicious SQL commands that can manipulate the database structure, extract sensitive information, modify data content, or even execute administrative operations on the underlying database system. The vulnerability aligns with CWE-89 which specifically addresses SQL injection weaknesses in software applications.
The operational impact of CVE-2017-17892 extends beyond simple data theft, as it provides attackers with potentially extensive access to the application's database infrastructure. Successful exploitation could result in unauthorized access to user credentials, personal information, video content metadata, and potentially sensitive system configuration data. The vulnerability's presence in a video sharing platform creates additional risks including the potential for content manipulation, user account compromise, and disruption of service availability. Attackers could leverage this weakness to gain persistence within the system or escalate privileges to administrative levels depending on the database permissions granted to the application's database user account. This vulnerability particularly aligns with ATT&CK technique T1071.005 for Application Layer Protocol: Web Protocols and T1190 for Exploit Public-Facing Application, as it targets publicly accessible web interfaces with direct database interaction capabilities.
Mitigation strategies for this vulnerability require immediate implementation of proper input validation and parameterized query construction throughout the affected application components. The recommended approach involves implementing prepared statements or parameterized queries for all database interactions, ensuring that user input is properly escaped and validated before being processed. Additionally, input sanitization routines should be deployed to filter out potentially malicious characters and sequences that could be used in SQL injection attempts. The application should also implement proper error handling that prevents database-specific error messages from being exposed to end users, as these can provide valuable information for further exploitation attempts. Security hardening measures including web application firewall rules, rate limiting for database queries, and regular security audits should be implemented to prevent similar vulnerabilities from emerging in other parts of the application. Organizations should also consider implementing database activity monitoring to detect anomalous query patterns that might indicate exploitation attempts against the vulnerable components.