F5 Networks BIG-IP : SSB Variant 4 vulnerability (K29146534)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from F5 Networks BIG-IP Solution K29146534.
#
# @NOAGENT@
##

include('compat.inc');

if (description)
{
  script_id(184239);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/05/07");

  script_cve_id("CVE-2018-3639");

  script_name(english:"F5 Networks BIG-IP : SSB Variant 4 vulnerability (K29146534)");

  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 tested version. It is, therefore, affected by
a vulnerability as referenced in the K29146534 advisory.

  - Systems with microprocessors utilizing speculative execution and speculative execution of memory reads
    before the addresses of all prior memory writes are known may allow unauthorized disclosure of information
    to an attacker with local user access via a side-channel analysis, aka Speculative Store Bypass (SSB),
    Variant 4. (CVE-2018-3639)

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/K29146534");
  script_set_attribute(attribute:"solution", value:
"The vendor has acknowledged the vulnerability, but no solution has been provided.
Refer to the vendor for remediation guidance.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:P/I:N/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2018-3639");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/05/21");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/11/02");

  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_acceleration_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_application_visibility_and_reporting");
  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_link_controller");
  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_webaccelerator");
  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) 2023-2024 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");

  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');

var sol = 'K29146534';
var vmatrix = {
  'AFM': {
    'affected': [
      '14.0.0-14.1.5','13.0.0-13.1.5','12.1.0-12.1.6','11.2.1-11.6.5'
    ],
  },
  'AM': {
    'affected': [
      '14.0.0-14.1.5','13.0.0-13.1.5','12.1.0-12.1.6','11.2.1-11.6.5'
    ],
  },
  'APM': {
    'affected': [
      '14.0.0-14.1.5','13.0.0-13.1.5','12.1.0-12.1.6','11.2.1-11.6.5'
    ],
  },
  'ASM': {
    'affected': [
      '14.0.0-14.1.5','13.0.0-13.1.5','12.1.0-12.1.6','11.2.1-11.6.5'
    ],
  },
  'AVR': {
    'affected': [
      '14.0.0-14.1.5','13.0.0-13.1.5','12.1.0-12.1.6','11.2.1-11.6.5'
    ],
  },
  'DNS': {
    'affected': [
      '14.0.0-14.1.5','13.0.0-13.1.5','12.1.0-12.1.6','11.2.1-11.6.5'
    ],
  },
  'GTM': {
    'affected': [
      '14.0.0-14.1.5','13.0.0-13.1.5','12.1.0-12.1.6','11.2.1-11.6.5'
    ],
  },
  'LC': {
    'affected': [
      '14.0.0-14.1.5','13.0.0-13.1.5','12.1.0-12.1.6','11.2.1-11.6.5'
    ],
  },
  'LTM': {
    'affected': [
      '14.0.0-14.1.5','13.0.0-13.1.5','12.1.0-12.1.6','11.2.1-11.6.5'
    ],
  },
  'PEM': {
    'affected': [
      '14.0.0-14.1.5','13.0.0-13.1.5','12.1.0-12.1.6','11.2.1-11.6.5'
    ],
  },
  'WAM': {
    'affected': [
      '14.0.0-14.1.5','13.0.0-13.1.5','12.1.0-12.1.6','11.2.1-11.6.5'
    ],
  }
};

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_NOTE,
      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');
}