unknown (malicious?) code and file in public dir (Laravel 5.8, apache/cPanel)

I have a Laravel 5.8 app in a server running Apache/2.4.53 (cPanel) and PHP 7.4 (ea-php74) and i have VPS root WHM/cPanel access there. as any Laravel project, the "public" directory is web accessible and the subdomain points to … Continue reading unknown (malicious?) code and file in public dir (Laravel 5.8, apache/cPanel)

Does yum enforce cryptographic authentication and integrity validation by default for all packages? (CentOS, RHEL)

Does the yum package manager in CentOS/RHEL-based systems require successful cryptographic authentication and integrity validation for all packages?
I know that software downloaded with apt-get packages must be cryptographically verified b… Continue reading Does yum enforce cryptographic authentication and integrity validation by default for all packages? (CentOS, RHEL)

Exploting a Stack Buffer Overflow vulnerability to get privilege access to system

I am trying to complete a buffer overflow challenge. The code I am trying to exploit is below. I can only use the command line in a Linux environment.
I understand that writing more than 100 characters into "userString" will star… Continue reading Exploting a Stack Buffer Overflow vulnerability to get privilege access to system