F5 Networks BIG-IP : TMM vulnerability (K92002212)

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from F5 Networks BIG-IP Solution K92002212.
#
# The text description of this plugin is (C) F5 Networks.
#

include('compat.inc');

if (description)
{
  script_id(132578);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/11/03");

  script_cve_id("CVE-2019-6676");

  script_name(english:"F5 Networks BIG-IP : TMM vulnerability (K92002212)");

  script_set_attribute(attribute:"synopsis", value:
"The remote device is missing a vendor-supplied security patch.");
  script_set_attribute(attribute:"description", value:
"Traffic Management Microkernel (TMM) may restart on BIG-IP Virtual
Edition (VE) when using virtio direct descriptors and packets 2 KB or
larger. (CVE-2019-6676)

Impact

Some virtio backend implementations send large packets (2 KB or
larger) even when Large Offload Receive (LRO) is disabled. If the
backend uses direct descriptors, this combination might cause Traffic
Management Microkernel (TMM) to generate a core file and restart. The
standard KVM implementation of virtio does not have this behavior.

This issue affects only BIG-IP VE systems. BIG-IP hardware platforms
do not use the virtio subsystem.");
  script_set_attribute(attribute:"see_also", value:"https://my.f5.com/manage/s/article/K92002212");
  script_set_attribute(attribute:"solution", value:
"Upgrade to one of the non-vulnerable versions listed in the F5 Solution K92002212.");
  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-2019-6676");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/12/23");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/12/20");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/12/31");

  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:/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) 2019-2023 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 = 'K92002212';
var vmatrix = {
  'AFM': {
    'affected': [
      '15.0.0-15.0.1','14.0.0-14.1.2','13.1.0-13.1.3'
    ],
    'unaffected': [
      '15.1.0','15.0.1.1','14.1.2.3','13.1.3.2'
    ],
  },
  'AM': {
    'affected': [
      '15.0.0-15.0.1','14.0.0-14.1.2','13.1.0-13.1.3'
    ],
    'unaffected': [
      '15.1.0','15.0.1.1','14.1.2.3','13.1.3.2'
    ],
  },
  'APM': {
    'affected': [
      '15.0.0-15.0.1','14.0.0-14.1.2','13.1.0-13.1.3'
    ],
    'unaffected': [
      '15.1.0','15.0.1.1','14.1.2.3','13.1.3.2'
    ],
  },
  'ASM': {
    'affected': [
      '15.0.0-15.0.1','14.0.0-14.1.2','13.1.0-13.1.3'
    ],
    'unaffected': [
      '15.1.0','15.0.1.1','14.1.2.3','13.1.3.2'
    ],
  },
  'AVR': {
    'affected': [
      '15.0.0-15.0.1','14.0.0-14.1.2','13.1.0-13.1.3'
    ],
    'unaffected': [
      '15.1.0','15.0.1.1','14.1.2.3','13.1.3.2'
    ],
  },
  'DNS': {
    'affected': [
      '15.0.0-15.0.1','14.0.0-14.1.2','13.1.0-13.1.3'
    ],
    'unaffected': [
      '15.1.0','15.0.1.1','14.1.2.3','13.1.3.2'
    ],
  },
  'GTM': {
    'affected': [
      '15.0.0-15.0.1','14.0.0-14.1.2','13.1.0-13.1.3'
    ],
    'unaffected': [
      '15.1.0','15.0.1.1','14.1.2.3','13.1.3.2'
    ],
  },
  'LC': {
    'affected': [
      '15.0.0-15.0.1','14.0.0-14.1.2','13.1.0-13.1.3'
    ],
    'unaffected': [
      '15.1.0','15.0.1.1','14.1.2.3','13.1.3.2'
    ],
  },
  'LTM': {
    'affected': [
      '15.0.0-15.0.1','14.0.0-14.1.2','13.1.0-13.1.3'
    ],
    'unaffected': [
      '15.1.0','15.0.1.1','14.1.2.3','13.1.3.2'
    ],
  },
  'PEM': {
    'affected': [
      '15.0.0-15.0.1','14.0.0-14.1.2','13.1.0-13.1.3'
    ],
    'unaffected': [
      '15.1.0','15.0.1.1','14.1.2.3','13.1.3.2'
    ],
  },
  'WAM': {
    'affected': [
      '15.0.0-15.0.1','14.0.0-14.1.2','13.1.0-13.1.3'
    ],
    'unaffected': [
      '15.1.0','15.0.1.1','14.1.2.3','13.1.3.2'
    ],
  }
};

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');
}