CMail MAIL FROM Command Remote Overflow

This script is Copyright (C) 1999-2014 Tenable Network Security, Inc.


Synopsis :

The remote mail server has a buffer overflow vulnerability.

Description :

The remote host appears to be running a vulnerable version of CMail.
Issuing a long argument to the 'MAIL FROM' command can result in a
buffer overflow. An attack would look something similar to :

MAIL FROM: AAA[...]AAA@nessus.org

Where AAA[...]AAA contains more than 8000 'A's.

A remote attacker could exploit this issue to crash the mail server,
or possibly to execute arbitrary code.

See also :

http://archives.neohapsis.com/archives/bugtraq/1999-q3/1429.html
http://marc.info/?l=bugtraq&m=93720402717560&w=2

Solution :

Contact the vendor for a fix.

Risk factor :

Critical / CVSS Base Score : 10.0
(CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C)
CVSS Temporal Score : 8.1
(CVSS2#E:U/RL:W/RC:C)
Public Exploit Available : true

Family: SMTP problems

Nessus Plugin ID: 10047 (cmail_overflow.nasl)

Bugtraq ID: 633

CVE ID: CVE-1999-1521