Microsoft Open Management Infrastructure (OMI) package < 1.6.8-1 Multiple Vulnerabilities

#%NASL_MIN_LEVEL 70300

##
# (C) Tenable Network Security, Inc.
##

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

if (description)
{
  script_id(153475);
  script_version("1.11");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/02/03");

  script_cve_id(
    "CVE-2021-38645",
    "CVE-2021-38647",
    "CVE-2021-38648",
    "CVE-2021-38649"
  );
  script_xref(name:"IAVA", value:"2021-A-0433");
  script_xref(name:"CISA-KNOWN-EXPLOITED", value:"2021/11/17");
  script_xref(name:"CEA-ID", value:"CEA-2021-0044");

  script_name(english:"Microsoft Open Management Infrastructure (OMI) package < 1.6.8-1 Multiple Vulnerabilities");

  script_set_attribute(attribute:"synopsis", value:
"A package installed on the remote host is affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The version of Microsoft Open Management Infrastructure (OMI) package installed on the remote host is prior to
1.6.8-1. It is, therefore, affected by multiple vulnerabilities:

  - A remote code execution vulnerability exists in the OMI agent. An unauthenticated, remote attacker can exploit 
    this to bypass authentication and execute arbitrary commands with root privileges. (CVE-2021-38647)
    
  - Multiple privilege escalation vulnerabilities exists in the OMI agent. An unauthenticated, remote attacker can
    exploit this, to gain privileged access to the system. (CVE-2021-38645, CVE-2021-38648, CVE-2021-38649)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-38647");
  script_set_attribute(attribute:"see_also", value:"https://www.wiz.io/blog/omigod-critical-vulnerabilities-in-omi-azure");
  script_set_attribute(attribute:"see_also", value:"https://github.com/microsoft/omi/releases");
  script_set_attribute(attribute:"solution", value:
"Update to version 1.6.8-1 or later.");
  script_set_attribute(attribute:"agent", value:"unix");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:H/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:H/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2021-38647");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploit_framework_core", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");
  script_set_attribute(attribute:"metasploit_name", value:'Microsoft OMI Management Interface Authentication Bypass');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");
  script_set_attribute(attribute:"exploit_framework_canvas", value:"true");
  script_set_attribute(attribute:"canvas_package", value:"CANVAS");

  script_set_attribute(attribute:"vuln_publication_date", value:"2021/09/14");
  script_set_attribute(attribute:"patch_publication_date", value:"2021/09/08");
  script_set_attribute(attribute:"plugin_publication_date", value:"2021/09/17");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"x-cpe:/a:microsoft:open_management_infrastructure");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Misc.");

  script_copyright(english:"This script is Copyright (C) 2021-2023 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled");

  exit(0);
}

include('audit.inc');
include('global_settings.inc');
include('rpm.inc');
include('debian_package.inc');
include('ubuntu.inc');

if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);

var rpm_flag = 0;
# CentOS Linux
if (rpm_check(release:'CentOS-7', reference:'omi-1.6.8-1')) rpm_flag++;
if (rpm_check(release:'CentOS-8', reference:'omi-1.6.8-1')) rpm_flag++;
# Red Hat Enterprise Linux
if (rpm_check(release:'RHEL7', reference:'omi-1.6.8-1')) rpm_flag++;
if (rpm_check(release:'RHEL8', reference:'omi-1.6.8-1')) rpm_flag++;
# Oracle Enterprise Linux
if (rpm_check(release:'EL7', reference:'omi-1.6.8-1')) rpm_flag++;
if (rpm_check(release:'EL8', reference:'omi-1.6.8-1')) rpm_flag++;
# Amazon Linux
if (rpm_check(release:'ALA', reference:'omi-1.6.8-1')) rpm_flag++;
if (rpm_check(release:'AL2', reference:'omi-1.6.8-1')) rpm_flag++;
# Fedora Core
if (rpm_check(release:'FC33', reference:'omi-1.6.8-1')) rpm_flag++;
if (rpm_check(release:'FC34', reference:'omi-1.6.8-1')) rpm_flag++;
# NewStart CGSL
if (rpm_check(release:'ZTE CGSL MAIN 4.06', reference:'omi-1.6.8-1')) rpm_flag++;
if (rpm_check(release:'ZTE CGSL MAIN 5.04', reference:'omi-1.6.8-1')) rpm_flag++;
if (rpm_check(release:'ZTE CGSL MAIN 6.02', reference:'omi-1.6.8-1')) rpm_flag++;
if (rpm_check(release:'ZTE CGSL CORE 5.04', reference:'omi-1.6.8-1')) rpm_flag++;
# Scientifix Linux
if (rpm_check(release:'SL6', reference:'omi-1.6.8-1')) rpm_flag++;
if (rpm_check(release:'SL7', reference:'omi-1.6.8-1')) rpm_flag++;
# OpenSUSE
if (rpm_check(release:'SUSE15.2', reference:'omi-1.6.8-1')) rpm_flag++;
if (rpm_check(release:'SUSE15.3', reference:'omi-1.6.8-1')) rpm_flag++;
# Virtuozzo
if (rpm_check(release:'Virtuozzo-6', reference:'omi-1.6.8-1')) rpm_flag++;
if (rpm_check(release:'Virtuozzo-7', reference:'omi-1.6.8-1')) rpm_flag++;

var deb_flag = 0;
# Debian Linux
if (deb_check(release:'8.0', prefix:'omi', reference:'1.6.8-1')) deb_flag++;
if (deb_check(release:'9.0', prefix:'omi', reference:'1.6.8-1')) deb_flag++;
if (deb_check(release:'10.0', prefix:'omi', reference:'1.6.8-1')) deb_flag++;
if (deb_check(release:'11.0', prefix:'omi', reference:'1.6.8-1')) deb_flag++;

var ubuntu_flag = 0;
# Ubuntu Linux
if (ubuntu_check(osver:'14.04', pkgname:'omi', pkgver:'1.6.8-1')) ubuntu_flag++;
if (ubuntu_check(osver:'16.04', pkgname:'omi', pkgver:'1.6.8-1')) ubuntu_flag++;
if (ubuntu_check(osver:'18.04', pkgname:'omi', pkgver:'1.6.8-1')) ubuntu_flag++;
if (ubuntu_check(osver:'20.04', pkgname:'omi', pkgver:'1.6.8-1')) ubuntu_flag++;
if (ubuntu_check(osver:'21.04', pkgname:'omi', pkgver:'1.6.8-1')) ubuntu_flag++;

if (rpm_flag || deb_flag || ubuntu_flag)
{
  var extra;

  if (rpm_flag)
    extra = rpm_report_get();
  else if (deb_flag)
    extra = deb_report_get();
  else if (ubuntu_flag)
    extra = ubuntu_report_get();

  security_report_v4(
    port: 0,
    severity: SECURITY_HOLE,
    extra: extra
  );
  exit(0);
}
else
  audit(AUDIT_HOST_NOT, 'affected');