Canna remote exploit

Overview

Vendor Description

The canna package as distributed in Debian GNU/Linux 2.1 can be remotely exploited to gain access. This could be done by overflowing a buffer by sending a SR_INIT command with a very long usernamd or groupname.

Category

Exploit: A way of breaking into a system. An exploit takes advantage of a weakness in a system in order to hack it. Exploits are the root of the hacker culture. Hackers gain fame by discovering an exploit. Others gain fame by writing scripts for it. Legions of script-kiddies apply the exploit to millions of systems, whether it makes sense or not. Since people make the same mistakes over-and-over, exploits for very different systems start to look very much like each other. Most exploits can be classified under major categories: buffer overflow, directory climbing, defaults, Denial of Service.

Origins

Author

Wichert Akkerman

Others By This Author

Debian nmh remote exploit ·

Date of Origin

July, 2000

Detection and Removal

Manual Removal

Follow these steps to remove Canna remote exploit from your machine. Begin by backing up your registry and your system, and/or setting a Restore Point, to prevent trouble if you make a mistake.

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