F5 Networks BIG-IP : Linux kernel vulnerability (K51674118)

#%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 K51674118.
#
# The text description of this plugin is (C) F5 Networks.
#

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

if (description)
{
  script_id(150465);
  script_version("1.6");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/11/02");

  script_cve_id("CVE-2019-11599");

  script_name(english:"F5 Networks BIG-IP : Linux kernel vulnerability (K51674118)");

  script_set_attribute(attribute:"synopsis", value:
"The remote device is missing a vendor-supplied security patch.");
  script_set_attribute(attribute:"description", value:
"The coredump implementation in the Linux kernel before 5.0.10 does not
use locking or other mechanisms to prevent vma layout or vma flags
changes while it runs, which allows local users to obtain sensitive
information, cause a denial of service, or possibly have unspecified
other impact by triggering a race condition with mmget_not_zero or
get_task_mm calls. This is related to fs/userfaultfd.c, mm/mmap.c,
fs/proc/task_mmu.c, and drivers/infiniband/core/uverbs_main.c.
(CVE-2019-11599)

Impact

A locally authenticated attacker can discover sensitive information,
cause a denial of service (DoS), or impact the system in another way
by triggering a race condition with the vulnerable component.");
  script_set_attribute(attribute:"see_also", value:"https://my.f5.com/manage/s/article/K51674118");
  script_set_attribute(attribute:"solution", value:
"Upgrade to one of the non-vulnerable versions listed in the F5 Solution K51674118.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-11599");

  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:"2019/04/29");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/07/15");
  script_set_attribute(attribute:"plugin_publication_date", value:"2021/06/10");

  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) 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");

  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 = 'K51674118';
var vmatrix = {
  'AFM': {
    'affected': [
      '16.0.0-16.0.1','15.0.0-15.1.3','14.0.0-14.1.4','13.1.0-13.1.4','12.1.0-12.1.6','11.5.2-11.6.5'
    ],
    'unaffected': [
      '16.1.0','16.0.1.2','15.1.4','14.1.4.3','13.1.4.1'
    ],
  },
  'AM': {
    'affected': [
      '16.0.0-16.0.1','15.0.0-15.1.3','14.0.0-14.1.4','13.1.0-13.1.4','12.1.0-12.1.6','11.5.2-11.6.5'
    ],
    'unaffected': [
      '16.1.0','16.0.1.2','15.1.4','14.1.4.3','13.1.4.1'
    ],
  },
  'APM': {
    'affected': [
      '16.0.0-16.0.1','15.0.0-15.1.3','14.0.0-14.1.4','13.1.0-13.1.4','12.1.0-12.1.6','11.5.2-11.6.5'
    ],
    'unaffected': [
      '16.1.0','16.0.1.2','15.1.4','14.1.4.3','13.1.4.1'
    ],
  },
  'ASM': {
    'affected': [
      '16.0.0-16.0.1','15.0.0-15.1.3','14.0.0-14.1.4','13.1.0-13.1.4','12.1.0-12.1.6','11.5.2-11.6.5'
    ],
    'unaffected': [
      '16.1.0','16.0.1.2','15.1.4','14.1.4.3','13.1.4.1'
    ],
  },
  'AVR': {
    'affected': [
      '16.0.0-16.0.1','15.0.0-15.1.3','14.0.0-14.1.4','13.1.0-13.1.4','12.1.0-12.1.6','11.5.2-11.6.5'
    ],
    'unaffected': [
      '16.1.0','16.0.1.2','15.1.4','14.1.4.3','13.1.4.1'
    ],
  },
  'DNS': {
    'affected': [
      '16.0.0-16.0.1','15.0.0-15.1.3','14.0.0-14.1.4','13.1.0-13.1.4','12.1.0-12.1.6','11.5.2-11.6.5'
    ],
    'unaffected': [
      '16.1.0','16.0.1.2','15.1.4','14.1.4.3','13.1.4.1'
    ],
  },
  'GTM': {
    'affected': [
      '16.0.0-16.0.1','15.0.0-15.1.3','14.0.0-14.1.4','13.1.0-13.1.4','12.1.0-12.1.6','11.5.2-11.6.5'
    ],
    'unaffected': [
      '16.1.0','16.0.1.2','15.1.4','14.1.4.3','13.1.4.1'
    ],
  },
  'LC': {
    'affected': [
      '16.0.0-16.0.1','15.0.0-15.1.3','14.0.0-14.1.4','13.1.0-13.1.4','12.1.0-12.1.6','11.5.2-11.6.5'
    ],
    'unaffected': [
      '16.1.0','16.0.1.2','15.1.4','14.1.4.3','13.1.4.1'
    ],
  },
  'LTM': {
    'affected': [
      '16.0.0-16.0.1','15.0.0-15.1.3','14.0.0-14.1.4','13.1.0-13.1.4','12.1.0-12.1.6','11.5.2-11.6.5'
    ],
    'unaffected': [
      '16.1.0','16.0.1.2','15.1.4','14.1.4.3','13.1.4.1'
    ],
  },
  'PEM': {
    'affected': [
      '16.0.0-16.0.1','15.0.0-15.1.3','14.0.0-14.1.4','13.1.0-13.1.4','12.1.0-12.1.6','11.5.2-11.6.5'
    ],
    'unaffected': [
      '16.1.0','16.0.1.2','15.1.4','14.1.4.3','13.1.4.1'
    ],
  },
  'WAM': {
    'affected': [
      '16.0.0-16.0.1','15.0.0-15.1.3','14.0.0-14.1.4','13.1.0-13.1.4','12.1.0-12.1.6','11.5.2-11.6.5'
    ],
    'unaffected': [
      '16.1.0','16.0.1.2','15.1.4','14.1.4.3','13.1.4.1'
    ],
  }
};

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_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');
}