CommuniGate Pro POP Service Empty Inbox Remote DoS

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(21917);
  script_version("1.16");
  script_set_attribute(attribute:"plugin_modification_date", value:"2022/04/11");

  script_cve_id("CVE-2006-3477");
  script_bugtraq_id(18770);

  script_name(english:"CommuniGate Pro POP Service Empty Inbox Remote DoS");

  script_set_attribute(attribute:"synopsis", value:
"The remote mail server is prone to a denial of service attack.");
  script_set_attribute(attribute:"description", value:
"According to its banner, the version of CommuniGate Pro running on the
remote host will crash when certain mail clients try to open an empty
mailbox.");
  script_set_attribute(attribute:"see_also", value:"http://www.stalker.com/CommuniGatePro/History.html");
  script_set_attribute(attribute:"solution", value:
"Upgrade to CommuniGate Pro 5.1c2 or newer.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"vuln_publication_date", value:"2006/06/30");
  script_set_attribute(attribute:"plugin_publication_date", value:"2006/07/04");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:communigate:communigate_pro_core_server");
  script_set_attribute(attribute:"thorough_tests", value:"true");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Windows");

  script_copyright(english:"This script is Copyright (C) 2006-2022 Tenable Network Security, Inc.");

  script_dependencies("find_service_3digits.nasl", "doublecheck_std_services.nasl");
  script_require_ports("Services/pop3", 110);

  exit(0);
}


include("pop3_func.inc");


port = get_kb_item("Services/pop3");
if (!port) port = 110;
if (!get_port_state(port)) exit(0);


# Check CommuniGate Pro's banner.
banner = get_pop3_banner(port:port);
if (
  banner &&
  "CommuniGate Pro POP3 Server" >< banner &&
  egrep(pattern:"CommuniGate Pro POP3 Server ([0-4]\.|5\.(0[^0-9]|1([ab][0-9]|c1)))", string:banner)
) security_warning(port);