Kali Linux Practical Guide: Database Vulnerability Mining and AI-Powered Defense System Construction

Kali Linux Practical Guide: Database Vulnerability Mining and AI-Powered Defense System Construction

1. Database Security Infrastructure and Threat Landscape As the storage medium for core data assets of enterprises, the security protection of databases is directly related to business continuity. The two major database systems represented by MySQL and Oracle occupy 78% of the global market share, but there are significant differences in their security architectures: MySQL … Read more

Understanding Linux umask: The Invisible Controller of Default File Permissions

Understanding Linux umask: The Invisible Controller of Default File Permissions

Note: This article is an original work by Liu Feng from Anyatech. Please respect intellectual property rights. When sharing, please indicate the source. No plagiarism, adaptation, or unauthorized reproduction is accepted. Introduction Overview In the Linux permission system, many people focus only on chmod and rwx, but overlook a more hidden yet equally critical role—umask. … Read more

When SQL Injection Encounters Strange Encoding Issues

When SQL Injection Encounters Strange Encoding Issues

Introduction Recently, during a penetration test for a client, I discovered a peculiar SQL injection. It was peculiar because the database connection encoding of the system was inconsistent with the actual database encoding, and the database table field names used Chinese characters, making it impossible to retrieve database data through normal means. The Story Begins … Read more