F5 Networks BIG-IP : TLS Triple Handshake Attack vulnerability (K000132686)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from F5 Networks BIG-IP Solution K000132686.
#
# @NOAGENT@
##

include('compat.inc');

if (description)
{
  script_id(216995);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2025/07/25");

  script_name(english:"F5 Networks BIG-IP : TLS Triple Handshake Attack vulnerability (K000132686)");

  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 17.1.0.1. It is, therefore, affected by a
vulnerability as referenced in the K000132686 advisory.

    The original TLS protocol includes a weakness in master secret negotiation, potentially allowing the
    Triple Handshake Attack that is mitigated by the Extended Master Secret (EMS) extension defined in RFC
    7627.

Tenable has extracted the preceding description block directly from the F5 Networks BIG-IP security advisory.

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/K000132686");
  script_set_attribute(attribute:"solution", value:
"Upgrade to one of the non-vulnerable versions listed in the F5 Solution K000132686.");
  script_set_attribute(attribute:"risk_factor", value:"High");

  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:"2023/02/28");
  script_set_attribute(attribute:"patch_publication_date", value:"2023/02/28");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/03/03");

  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_iapps_lx");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_irules_lx");
  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_ssl_orchestrator");
  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_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2025 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 = 'K000132686';
var vmatrix = {
  'AFM': {
    'affected': [
      '17.0.0-17.1.0','16.1.0-16.1.5','15.1.0-15.1.10','14.1.0-14.1.5','13.1.0-13.1.5'
    ],
    'unaffected': [
      '17.1.0.1'
    ],
  },
  'APM': {
    'affected': [
      '17.0.0-17.1.0','16.1.0-16.1.5','15.1.0-15.1.10','14.1.0-14.1.5','13.1.0-13.1.5'
    ],
    'unaffected': [
      '17.1.0.1'
    ],
  },
  'ASM': {
    'affected': [
      '17.0.0-17.1.0','16.1.0-16.1.5','15.1.0-15.1.10','14.1.0-14.1.5','13.1.0-13.1.5'
    ],
    'unaffected': [
      '17.1.0.1'
    ],
  },
  'DNS': {
    'affected': [
      '17.0.0-17.1.0','16.1.0-16.1.5','15.1.0-15.1.10','14.1.0-14.1.5','13.1.0-13.1.5'
    ],
    'unaffected': [
      '17.1.0.1'
    ],
  },
  'GTM': {
    'affected': [
      '17.0.0-17.1.0','16.1.0-16.1.5','15.1.0-15.1.10','14.1.0-14.1.5','13.1.0-13.1.5'
    ],
    'unaffected': [
      '17.1.0.1'
    ],
  },
  'LTM': {
    'affected': [
      '17.0.0-17.1.0','16.1.0-16.1.5','15.1.0-15.1.10','14.1.0-14.1.5','13.1.0-13.1.5'
    ],
    'unaffected': [
      '17.1.0.1'
    ],
  },
  'PEM': {
    'affected': [
      '17.0.0-17.1.0','16.1.0-16.1.5','15.1.0-15.1.10','14.1.0-14.1.5','13.1.0-13.1.5'
    ],
    'unaffected': [
      '17.1.0.1'
    ],
  },
  'PSM': {
    'affected': [
      '17.0.0-17.1.0','16.1.0-16.1.5','15.1.0-15.1.10','14.1.0-14.1.5','13.1.0-13.1.5'
    ],
    'unaffected': [
      '17.1.0.1'
    ],
  },
  'SSL-Orchestrator': {
    'affected': [
      '17.0.0-17.1.0','16.1.0-16.1.5','15.1.0-15.1.10','14.1.0-14.1.5','13.1.0-13.1.5'
    ],
    'unaffected': [
      '17.1.0.1'
    ],
  },
  'WOM': {
    'affected': [
      '17.0.0-17.1.0','16.1.0-16.1.5','15.1.0-15.1.10','14.1.0-14.1.5','13.1.0-13.1.5'
    ],
    'unaffected': [
      '17.1.0.1'
    ],
  },
  'iAppsLX': {
    'affected': [
      '17.0.0-17.1.0','16.1.0-16.1.5','15.1.0-15.1.10','14.1.0-14.1.5','13.1.0-13.1.5'
    ],
    'unaffected': [
      '17.1.0.1'
    ],
  },
  'iRulesLX': {
    'affected': [
      '17.0.0-17.1.0','16.1.0-16.1.5','15.1.0-15.1.10','14.1.0-14.1.5','13.1.0-13.1.5'
    ],
    'unaffected': [
      '17.1.0.1'
    ],
  }
};

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');
}