Linux Exploitation

Linux Vulnerabilities

GNU/Linux is a free and open source operating system, combination of the Linux kernel and the GNU toolkit software collection, developed by Richard Stallman.

• Linux kernel is the core of the O.S.

• Linux distributions are variants of the same O.S.

• Typically deployed as a server O.S.

  • Linux server services and protocols can provide with an access vector that an attacker can use

Protocol/Service	Ports	Purpose
Apache Web Server	TCP 80/443	Open source cross-platform web server
SSH (Secure Shell)	TCP 22	Cryptographic remote access protocol, used for operating network services securely over an unsecured network. Secure successor of telnet
FTP (File Transfer Protocol)	TCP 21	Communication protocol used for file sharing between a server and a client, over TCP
SAMBA	TCP 445	Open source implementation of the SMB protocol. Enabled Unix machines to communicate with Windows machines in a network