Executive Summary

CVE-2022-50894 is an SQL injection vulnerability in VIAVIWEB Wallpaper Admin 1.0. Authenticated attackers can inject malicious SQL code through the img_id parameter in the edit_gallery_image.php script by sending specially crafted GET requests. This allows them to manipulate database queries and potentially extract sensitive information from the database. [2, 3]

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Impact Analysis

This vulnerability can allow attackers with valid authentication to manipulate database queries, leading to unauthorized access to sensitive data stored in the database. This can result in data leakage, data corruption, or unauthorized data modification, which can compromise the integrity and confidentiality of your system's data. [2, 3]

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Detection Guidance

This vulnerability can be detected by sending authenticated GET requests to the edit_gallery_image.php endpoint with various malicious payloads injected into the img_id parameter to test for SQL injection. For example, you can use curl commands to send requests like: curl -u user:password 'http://target/edit_gallery_image.php?img_id=1' and then try payloads such as '1 OR 1=1' or '1' UNION SELECT ... to observe if the database responds with errors or unexpected data. Monitoring web server logs for suspicious requests to edit_gallery_image.php with unusual img_id values can also help detect exploitation attempts. [2, 3]

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Mitigation Strategies

Immediate mitigation steps include restricting access to the edit_gallery_image.php endpoint to only trusted authenticated users, applying input validation and parameterized queries to prevent SQL injection, and disabling or restricting file uploads to prevent remote code execution. Additionally, monitoring and blocking suspicious requests targeting img_id parameters and updating the application to a patched version when available are recommended. [2, 3]

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