F5 Networks BIG-IP : Resource Administrator or Administrator role authenticated local command execution vulnerability (K04234247)

#%NASL_MIN_LEVEL 70300
##
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from F5 Networks BIG-IP Solution K04234247.
#
# @NOAGENT@
##

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

if (description)
{
  script_id(154697);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/11/02");

  script_cve_id("CVE-2021-23012");

  script_name(english:"F5 Networks BIG-IP : Resource Administrator or Administrator role authenticated local command execution vulnerability (K04234247)");

  script_set_attribute(attribute:"synopsis", value:
"The remote device is missing a vendor-supplied security patch.");
  script_set_attribute(attribute:"description", value:
"The version of F5 Networks BIG-IP installed on the remote host is prior to 13.1.4 / 14.1.4 / 15.1.3 / 16.0.1.1 / 16.1.0.
It is, therefore, affected by a vulnerability as referenced in the K04234247 advisory.

  - On BIG-IP versions 16.0.x before 16.0.1.1, 15.1.x before 15.1.3, 14.1.x before 14.1.4, and 13.1.x before
    13.1.4, lack of input validation for items used in the system support functionality may allow users
    granted either Resource Administrator or Administrator roles to execute arbitrary bash commands on
    BIG-IP. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
    (CVE-2021-23012)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://my.f5.com/manage/s/article/K04234247");
  script_set_attribute(attribute:"solution", value:
"Upgrade to one of the non-vulnerable versions listed in the F5 Solution K04234247.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2021-23012");

  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:"2021/05/10");
  script_set_attribute(attribute:"patch_publication_date", value:"2021/04/28");
  script_set_attribute(attribute:"plugin_publication_date", value:"2021/10/28");

  script_set_attribute(attribute:"potential_vulnerability", value:"true");
  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_access_policy_manager");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_advanced_firewall_manager");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_application_security_manager");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_domain_name_system");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_global_traffic_manager");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_local_traffic_manager");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_policy_enforcement_manager");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_wan_optimization_manager");
  script_set_attribute(attribute:"cpe", value:"cpe:/h:f5:big-ip_protocol_security_manager");
  script_set_attribute(attribute:"cpe", value:"cpe:/h:f5:big-ip");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"F5 Networks Local Security Checks");

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

  script_dependencies("f5_bigip_detect.nbin");
  script_require_keys("Host/local_checks_enabled", "Host/BIG-IP/hotfix", "Host/BIG-IP/modules", "Host/BIG-IP/version", "Settings/ParanoidReport");

  exit(0);
}


include('f5_func.inc');

if ( ! get_kb_item('Host/local_checks_enabled') ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var version = get_kb_item('Host/BIG-IP/version');
if ( ! version ) audit(AUDIT_OS_NOT, 'F5 Networks BIG-IP');
if ( isnull(get_kb_item('Host/BIG-IP/hotfix')) ) audit(AUDIT_KB_MISSING, 'Host/BIG-IP/hotfix');
if ( ! get_kb_item('Host/BIG-IP/modules') ) audit(AUDIT_KB_MISSING, 'Host/BIG-IP/modules');

if (report_paranoia < 2) audit(AUDIT_PARANOID);

var sol = 'K04234247';
var vmatrix = {
  'AFM': {
    'affected': [
      '16.0.0-16.0.1','15.0.0-15.1.2','14.1.0-14.1.3','13.1.0-13.1.3'
    ],
    'unaffected': [
      '16.1.0','16.0.1.1','15.1.3','14.1.4','13.1.4'
    ],
  },
  'APM': {
    'affected': [
      '16.0.0-16.0.1','15.0.0-15.1.2','14.1.0-14.1.3','13.1.0-13.1.3'
    ],
    'unaffected': [
      '16.1.0','16.0.1.1','15.1.3','14.1.4','13.1.4'
    ],
  },
  'ASM': {
    'affected': [
      '16.0.0-16.0.1','15.0.0-15.1.2','14.1.0-14.1.3','13.1.0-13.1.3'
    ],
    'unaffected': [
      '16.1.0','16.0.1.1','15.1.3','14.1.4','13.1.4'
    ],
  },
  'DNS': {
    'affected': [
      '16.0.0-16.0.1','15.0.0-15.1.2','14.1.0-14.1.3','13.1.0-13.1.3'
    ],
    'unaffected': [
      '16.1.0','16.0.1.1','15.1.3','14.1.4','13.1.4'
    ],
  },
  'GTM': {
    'affected': [
      '16.0.0-16.0.1','15.0.0-15.1.2','14.1.0-14.1.3','13.1.0-13.1.3'
    ],
    'unaffected': [
      '16.1.0','16.0.1.1','15.1.3','14.1.4','13.1.4'
    ],
  },
  'LTM': {
    'affected': [
      '16.0.0-16.0.1','15.0.0-15.1.2','14.1.0-14.1.3','13.1.0-13.1.3'
    ],
    'unaffected': [
      '16.1.0','16.0.1.1','15.1.3','14.1.4','13.1.4'
    ],
  },
  'PEM': {
    'affected': [
      '16.0.0-16.0.1','15.0.0-15.1.2','14.1.0-14.1.3','13.1.0-13.1.3'
    ],
    'unaffected': [
      '16.1.0','16.0.1.1','15.1.3','14.1.4','13.1.4'
    ],
  },
  'PSM': {
    'affected': [
      '16.0.0-16.0.1','15.0.0-15.1.2','14.1.0-14.1.3','13.1.0-13.1.3'
    ],
    'unaffected': [
      '16.1.0','16.0.1.1','15.1.3','14.1.4','13.1.4'
    ],
  },
  'WOM': {
    'affected': [
      '16.0.0-16.0.1','15.0.0-15.1.2','14.1.0-14.1.3','13.1.0-13.1.3'
    ],
    'unaffected': [
      '16.1.0','16.0.1.1','15.1.3','14.1.4','13.1.4'
    ],
  }
};

if (bigip_is_affected(vmatrix:vmatrix, sol:sol))
{
  var extra = NULL;
  if (report_verbosity > 0) extra = bigip_report_get();
  security_report_v4(
      port       : 0,
      severity   : SECURITY_HOLE,
      extra      : extra
  );
}
else
{
  var tested = bigip_get_tested_modules();
  var audit_extra = 'For BIG-IP module(s) ' + tested + ',';
  if (tested) audit(AUDIT_INST_VER_NOT_VULN, audit_extra, version);
  else audit(AUDIT_HOST_NOT, 'running any of the affected modules');
}