Buffer overflows in these applications can be exploited allowing attackers to gain control with root access. This information is typically used to mount a password guessing or brute force password attack against the NT target. Service workers often leave maintenance accounts with no passwords, default passwords or easily guessable passwords. IMAP and POP remote access mail protocols allow exploitation of openings in firewalls allowing for external access. Attackers who exploit flaws in IMAP or POP often gain instant root-level control.
Attackers can reconfigure or shut down devices remotely.
Sniffed SNMP traffic can reveal a great deal about the structure of your network, as well as the systems and devices attached to it.