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Advanced Linux Security Audit Script for Server Hardening & Vulnerability Checks(CVE-2026–43284 / 43500)
A bash script that detects compromise, blocks the exploit’s entry point, and changes nothing on disk
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Introduction
Linux servers are continuously exposed to security threats such as Local Privilege Escalation (LPE), namespace abuse, insecure SUID binaries, authentication attacks, container escape risks, and kernel vulnerabilities.
To improve Linux server security posture and simplify security validation, I created a custom Bash-based Linux Security Mitigation Audit Script that performs:
- Namespace hardening
- Security module validation
- Kernel validation
- Authentication log analysis
- Open port auditing
- Container runtime checks
- SUID privilege checks








