F5 Networks BIG-IP : OpenSSL vulnerability (K24624116)

#%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 K24624116.
#
# @NOAGENT@
##

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

if (description)
{
  script_id(154690);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/01/08");

  script_cve_id("CVE-2021-23840");
  script_xref(name:"IAVA", value:"2021-A-0103-S");

  script_name(english:"F5 Networks BIG-IP : OpenSSL vulnerability (K24624116)");

  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 14.1.4.6 / 15.1.5.1 / 16.1.2.2 / 17.0.0. It
is, therefore, affected by a vulnerability as referenced in the K24624116 advisory.

  - Calls to EVP_CipherUpdate, EVP_EncryptUpdate and EVP_DecryptUpdate may overflow the output length argument
    in some cases where the input length is close to the maximum permissable length for an integer on the
    platform. In such cases the return value from the function call will be 1 (indicating success), but the
    output length value will be negative. This could cause applications to behave incorrectly or crash.
    OpenSSL versions 1.1.1i and below are affected by this issue. Users of these versions should upgrade to
    OpenSSL 1.1.1j. OpenSSL versions 1.0.2x and below are affected by this issue. However OpenSSL 1.0.2 is out
    of support and no longer receiving public updates. Premium support customers of OpenSSL 1.0.2 should
    upgrade to 1.0.2y. Other users should upgrade to 1.1.1j. Fixed in OpenSSL 1.1.1j (Affected 1.1.1-1.1.1i).
    Fixed in OpenSSL 1.0.2y (Affected 1.0.2-1.0.2x). (CVE-2021-23840)

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/K24624116");
  script_set_attribute(attribute:"solution", value:
"Upgrade to one of the non-vulnerable versions listed in the F5 Solution K24624116.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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-2021-23840");

  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:"2021/02/16");
  script_set_attribute(attribute:"patch_publication_date", value:"2021/02/18");
  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_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:/h:f5:big-ip");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2021-2024 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", "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 = 'K24624116';
var vmatrix = {
  'AFM': {
    'affected': [
      '16.0.0-16.1.2','15.1.0-15.1.5','14.1.2-14.1.4','14.1.0.3-14.1.0.6','13.1.1-13.1.4','12.1.2 HF1-12.1.6'
    ],
    'unaffected': [
      '17.0.0','16.1.2.2','15.1.5.1','14.1.4.6'
    ],
  },
  'AM': {
    'affected': [
      '16.0.0-16.1.2','15.1.0-15.1.5','14.1.2-14.1.4','14.1.0.3-14.1.0.6','13.1.1-13.1.4','12.1.2 HF1-12.1.6'
    ],
    'unaffected': [
      '17.0.0','16.1.2.2','15.1.5.1','14.1.4.6'
    ],
  },
  'APM': {
    'affected': [
      '16.0.0-16.1.2','15.1.0-15.1.5','14.1.2-14.1.4','14.1.0.3-14.1.0.6','13.1.1-13.1.4','12.1.2 HF1-12.1.6'
    ],
    'unaffected': [
      '17.0.0','16.1.2.2','15.1.5.1','14.1.4.6'
    ],
  },
  'ASM': {
    'affected': [
      '16.0.0-16.1.2','15.1.0-15.1.5','14.1.2-14.1.4','14.1.0.3-14.1.0.6','13.1.1-13.1.4','12.1.2 HF1-12.1.6'
    ],
    'unaffected': [
      '17.0.0','16.1.2.2','15.1.5.1','14.1.4.6'
    ],
  },
  'AVR': {
    'affected': [
      '16.0.0-16.1.2','15.1.0-15.1.5','14.1.2-14.1.4','14.1.0.3-14.1.0.6','13.1.1-13.1.4','12.1.2 HF1-12.1.6'
    ],
    'unaffected': [
      '17.0.0','16.1.2.2','15.1.5.1','14.1.4.6'
    ],
  },
  'DNS': {
    'affected': [
      '16.0.0-16.1.2','15.1.0-15.1.5','14.1.2-14.1.4','14.1.0.3-14.1.0.6','13.1.1-13.1.4','12.1.2 HF1-12.1.6'
    ],
    'unaffected': [
      '17.0.0','16.1.2.2','15.1.5.1','14.1.4.6'
    ],
  },
  'GTM': {
    'affected': [
      '16.0.0-16.1.2','15.1.0-15.1.5','14.1.2-14.1.4','14.1.0.3-14.1.0.6','13.1.1-13.1.4','12.1.2 HF1-12.1.6'
    ],
    'unaffected': [
      '17.0.0','16.1.2.2','15.1.5.1','14.1.4.6'
    ],
  },
  'LC': {
    'affected': [
      '16.0.0-16.1.2','15.1.0-15.1.5','14.1.2-14.1.4','14.1.0.3-14.1.0.6','13.1.1-13.1.4','12.1.2 HF1-12.1.6'
    ],
    'unaffected': [
      '17.0.0','16.1.2.2','15.1.5.1','14.1.4.6'
    ],
  },
  'LTM': {
    'affected': [
      '16.0.0-16.1.2','15.1.0-15.1.5','14.1.2-14.1.4','14.1.0.3-14.1.0.6','13.1.1-13.1.4','12.1.2 HF1-12.1.6'
    ],
    'unaffected': [
      '17.0.0','16.1.2.2','15.1.5.1','14.1.4.6'
    ],
  },
  'PEM': {
    'affected': [
      '16.0.0-16.1.2','15.1.0-15.1.5','14.1.2-14.1.4','14.1.0.3-14.1.0.6','13.1.1-13.1.4','12.1.2 HF1-12.1.6'
    ],
    'unaffected': [
      '17.0.0','16.1.2.2','15.1.5.1','14.1.4.6'
    ],
  }
};

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_WARNING,
      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');
}