HP LaserJet Printers Unauthenticated Access (Telnet)

# SPDX-FileCopyrightText: 2012 Greenbone AG
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.103390");
  script_cve_id("CVE-1999-1061");
  script_version("2023-07-25T05:05:58+0000");
  script_name("HP LaserJet Printers Unauthenticated Access (Telnet)");
  script_tag(name:"last_modification", value:"2023-07-25 05:05:58 +0000 (Tue, 25 Jul 2023)");
  script_tag(name:"creation_date", value:"2012-01-13 10:43:06 +0100 (Fri, 13 Jan 2012)");
  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_category(ACT_ATTACK);
  script_family("Default Accounts");
  script_copyright("Copyright (C) 2012 Greenbone AG");
  script_dependencies("telnetserver_detect_type_nd_version.nasl", "gb_default_credentials_options.nasl");
  script_require_ports(23);
  script_mandatory_keys("telnet/hp/jetdirect/detected");
  script_exclude_keys("default_credentials/disable_default_account_checks");

  script_tag(name:"solution", value:"Connect to this printer via telnet and set a password by executing
  the 'passwd' command.");

  script_tag(name:"summary", value:"HP Laserjet printers with JetDirect cards, when configured with
  TCP/IP, can be configured without a password, which allows remote attackers to connect to the printer
  and change its IP address or disable logging.");

  script_tag(name:"qod_type", value:"remote_vul");
  script_tag(name:"solution_type", value:"Mitigation");

  exit(0);
}

if(get_kb_item("default_credentials/disable_default_account_checks"))
  exit(0);

include("telnet_func.inc");
include("misc_func.inc");
include("port_service_func.inc");
include("dump.inc");

port = telnet_get_port( default:23 );
banner = telnet_get_banner( port:port );
if( ! banner || "HP JetDirect" >!< banner )
  exit( 0 );

if( "Enter username:" >< banner )
  exit( 99 );

soc = open_sock_tcp( port );
if( ! soc )
  exit( 0 );

telnet_negotiate( socket:soc ); #nb: Just receive the initial banner
send( socket:soc, data:'/\r\n' );
buf = recv( socket:soc, length:1024 );
send( socket:soc, data:'exit\r\n' );
close( soc );

if( "JetDirect Telnet Configuration" >< buf || "Password is not set" >< banner ) {
  security_message( port:port );
  exit( 0 );
}

exit( 99 );