icons icons icons icons icons icons icons icons icons icons icons icons icons icons icons icons icons icons icons icons icons icons icons icons icons icons icons icons icons icons icons icons icons icons icons icons icons icons icons icons icons icons icons icons icons icons icons icons icons icons icons icons icons icons icons icons_061

Ipswitch IMail Format String and 'LIST' Command DoS

High

Synopsis

The remote host is vulnerable to a format string flaw.

Description

The remote host is running a version of the Ipswitch Collaboration Suite / Ipswitch IMail IMAP server that is prone to a format string flaw. An attacker exploiting this flaw would send a malformed string to the remote mail server. Successful exploitation would result in the attacker executing arbitrary code. The affected SMTP arguments are: EXPN, MAIL, MAIL FROM, and RCPT TO. In addition, the remote host is vulnerable to a flaw when processing very long 'LIST' commands. Successful exploitation results in the remote service crashing.

Solution

Upgrade to version 8.22.0 of IMail or version 2.0.0.2 of the Ipswitch Collaboration Suite.