F5 Networks BIG-IP : Linux kernel vulnerability (K15412203)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from F5 Networks BIG-IP Solution K15412203.
#
# @NOAGENT@
##

include('compat.inc');

if (description)
{
  script_id(184224);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/09/06");

  script_cve_id("CVE-2017-1000365");

  script_name(english:"F5 Networks BIG-IP : Linux kernel vulnerability (K15412203)");

  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 K15412203 advisory.

    The Linux Kernel imposes a size restriction on the arguments and environmental strings passed through
    RLIMIT_STACK/RLIM_INFINITY (1/4 of the size), but does not take the argument and environment pointers into
    account, which allows attackers to bypass this limitation. This affects Linux Kernel versions 4.11.5 and
    earlier. It appears that this feature was introduced in the Linux Kernel version 2.6.23.(CVE-2017-1000365)

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/K15412203");
  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:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/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:H/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-2017-1000365");

  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:"2017/06/19");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/11/02");

  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_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_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) 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", "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 = 'K15412203';
var vmatrix = {
  'AFM': {
    'affected': [
      '17.1.0-17.1.1','16.1.0-16.1.5','15.1.0-15.1.10','14.1.0-14.1.5','13.1.0-13.1.5','12.1.0-12.1.6','11.2.1-11.6.5'
    ],
  },
  'APM': {
    'affected': [
      '17.1.0-17.1.1','16.1.0-16.1.5','15.1.0-15.1.10','14.1.0-14.1.5','13.1.0-13.1.5','12.1.0-12.1.6','11.2.1-11.6.5'
    ],
  },
  'ASM': {
    'affected': [
      '17.1.0-17.1.1','16.1.0-16.1.5','15.1.0-15.1.10','14.1.0-14.1.5','13.1.0-13.1.5','12.1.0-12.1.6','11.2.1-11.6.5'
    ],
  },
  'DNS': {
    'affected': [
      '17.1.0-17.1.1','16.1.0-16.1.5','15.1.0-15.1.10','14.1.0-14.1.5','13.1.0-13.1.5','12.1.0-12.1.6','11.2.1-11.6.5'
    ],
  },
  'GTM': {
    'affected': [
      '17.1.0-17.1.1','16.1.0-16.1.5','15.1.0-15.1.10','14.1.0-14.1.5','13.1.0-13.1.5','12.1.0-12.1.6','11.2.1-11.6.5'
    ],
  },
  'LTM': {
    'affected': [
      '17.1.0-17.1.1','16.1.0-16.1.5','15.1.0-15.1.10','14.1.0-14.1.5','13.1.0-13.1.5','12.1.0-12.1.6','11.2.1-11.6.5'
    ],
  },
  'PEM': {
    'affected': [
      '17.1.0-17.1.1','16.1.0-16.1.5','15.1.0-15.1.10','14.1.0-14.1.5','13.1.0-13.1.5','12.1.0-12.1.6','11.2.1-11.6.5'
    ],
  },
  'PSM': {
    'affected': [
      '17.1.0-17.1.1','16.1.0-16.1.5','15.1.0-15.1.10','14.1.0-14.1.5','13.1.0-13.1.5','12.1.0-12.1.6','11.2.1-11.6.5'
    ],
  },
  'WOM': {
    'affected': [
      '17.1.0-17.1.1','16.1.0-16.1.5','15.1.0-15.1.10','14.1.0-14.1.5','13.1.0-13.1.5','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_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');
}