Proxmox Virtual Environment (VE, PVE) Detection Consolidation

# SPDX-FileCopyrightText: 2021 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

include("plugin_feed_info.inc");

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.117270");
  script_version("2024-07-03T06:48:05+0000");
  script_tag(name:"last_modification", value:"2024-07-03 06:48:05 +0000 (Wed, 03 Jul 2024)");
  script_tag(name:"creation_date", value:"2021-03-24 12:47:40 +0000 (Wed, 24 Mar 2021)");
  script_tag(name:"cvss_base", value:"0.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:N/I:N/A:N");
  script_name("Proxmox Virtual Environment (VE, PVE) Detection Consolidation");
  script_category(ACT_GATHER_INFO);
  script_family("Product detection");
  script_copyright("Copyright (C) 2021 Greenbone AG");
  script_dependencies("sw_proxmox_ve_http_detect.nasl");
  if(FEED_NAME == "GSF" || FEED_NAME == "GEF" || FEED_NAME == "SCM")
    script_dependencies("gsf/gb_proxmox_ve_ssh_login_detect.nasl",
                        "gsf/gb_proxmox_ve_snmp_detect.nasl");
  script_mandatory_keys("proxmox/ve/detected");

  script_tag(name:"summary", value:"Consolidation of Proxmox Virtual Environment (VE, PVE) detections.");

  script_xref(name:"URL", value:"https://pve.proxmox.com");

  script_tag(name:"qod_type", value:"remote_banner");

  exit(0);
}

include("host_details.inc");
include("os_func.inc");

if( ! get_kb_item( "proxmox/ve/detected" ) )
  exit( 0 );

detected_version = "unknown";
location = "/";
extra = '\nDetection methods:\n';

# nb: We can "fingerprint" the underlying Debian operation system based on the major
# version of Proxmox VE: https://pve.proxmox.com/wiki/FAQ
# The array key is the major version of Proxmox VE, the array value the matching
# Debian version.
proxmox_ve_debian_mapping = make_array(
  "8", "12",
  "7", "11",
  "6", "10",
  "5", "9",
  "4", "8",
  "3", "7",
  "2", "6",
  "1", "5" );

foreach source( make_list( "ssh-login", "snmp", "http" ) ) {
  version_list = get_kb_list( "proxmox/ve/" + source + "/*/version" );
  foreach version( version_list ) {
    if( version && detected_version == "unknown" ) {
      detected_version = version;
      break;
    }
  }
}

if( detected_version != "unknown" ) {
  cpe = "cpe:/a:proxmox:virtual_environment:" + detected_version;

  major = eregmatch( string:detected_version, pattern:"^([0-9]+)\.", icase:FALSE );
  if( major[1] ) {
    if( proxmox_ve_debian_mapping[major[1]] )
      deb_os_version = proxmox_ve_debian_mapping[major[1]];
    else
      deb_os_version = "";
  }
} else {
  cpe = "cpe:/a:proxmox:virtual_environment";
  deb_os_version = "";
}

os_register_and_report( os:"Debian GNU/Linux", cpe:"cpe:/o:debian:debian_linux", version:deb_os_version,
                        banner_type:"Debian version fingerprinting based on the Proxmox VE major version",
                        desc:"Proxmox Virtual Environment (VE, PVE) Detection Consolidation",
                        runs_key:"unixoide" );

if( http_port = get_kb_list( "proxmox/ve/http/port" ) ) {
  foreach port( http_port ) {
    concluded = get_kb_item( "proxmox/ve/http/" + port + "/concluded" );
    concludedUrl = get_kb_item( "proxmox/ve/http/" + port + "/concludedUrl" );
    extra += '\n- HTTP(s) on port ' + port + "/tcp";
    if( concluded )
      extra += '\n  Concluded from version/product identification result:\n' + concluded + '\n';

    if( concludedUrl )
      extra += '\n  Concluded from version/product identification location:\n' + concludedUrl + '\n';

    register_product( cpe:cpe, location:location, port:port, service:"www" );
  }
}

if( ssh_port = get_kb_list( "proxmox/ve/ssh-login/port" ) ) {
  foreach port( ssh_port ) {
    concluded = get_kb_item( "proxmox/ve/ssh-login/" + port + "/concluded" );
    extra += '\n- SSH login on port ' + port + "/tcp";
    if( concluded )
      extra += '\n  Concluded from version/product identification result (dpkg -l):\n' + concluded + '\n';

    register_product( cpe:cpe, location:location, port:0, service:"ssh-login" );
  }
}

if( snmp_port = get_kb_list( "proxmox/ve/snmp/port" ) ) {
  foreach port( snmp_port ) {
    concluded = get_kb_item( "proxmox/ve/snmp/" + port + "/concluded" );
    concludedOID = get_kb_item( "proxmox/ve/snmp/" + port + "/concludedOID" );
    extra += '\n- SNMP on port ' + port + "/udp";
    if( concluded )
      extra += '\n  Concluded from version/product identification result:\n' + concluded + '\n';

    if( concludedOID )
      extra += '\n  Concluded from version/product identification location (OID):\n' + concludedOID + '\n';

    register_product( cpe:cpe, location:location, port:port, service:"snmp", proto:"udp" );
  }
}

report = build_detection_report( app:"Proxmox Virtual Environment (VE, PVE)",
                                 version:detected_version, install:location, cpe:cpe );

report += '\n' + extra;

log_message( port:0, data:chomp( report ) );

exit( 0 );