Vulnerabilities > CVE-2019-5527 - Use After Free vulnerability in VMWare products

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from VMware Security Advisory 2019-0014. 
# The text itself is copyright (C) VMware Inc.
#

include("compat.inc");

if (description)
{
  script_id(129161);
  script_version("1.3");
  script_cvs_date("Date: 2019/12/24");

  script_cve_id("CVE-2019-5527");
  script_xref(name:"VMSA", value:"2019-0014");

  script_name(english:"VMSA-2019-0014 : Use-after-free vulnerability");
  script_summary(english:"Checks esxupdate output for the patches");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote VMware ESXi host is missing one or more security-related
patches."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"ESXi use-after-free vulnerability - CVE-2019-5527

ESXi, Workstation, Fusion, VMRC and Horizon Client contain a use-after-free vulnerability in the virtual sound device.

A local attacker with non-administrative access on the guest machine may exploit this issue to execute code on the host. This issue can only be exploited if a valid sound back-end is not connected."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://lists.vmware.com/pipermail/security-announce/2019/000468.html"
  );
  script_set_attribute(attribute:"solution", value:"Apply the missing patches.");
  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:C/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:vmware:esxi:6.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:vmware:esxi:6.5");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:vmware:esxi:6.7");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/10/10");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/09/19");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/09/23");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"VMware ESX Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/VMware/release", "Host/VMware/version");
  script_require_ports("Host/VMware/esxupdate", "Host/VMware/esxcli_software_vibs");

  exit(0);
}


include("audit.inc");
include("vmware_esx_packages.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/VMware/release")) audit(AUDIT_OS_NOT, "VMware ESX / ESXi");
if (
  !get_kb_item("Host/VMware/esxcli_software_vibs") &&
  !get_kb_item("Host/VMware/esxupdate")
) audit(AUDIT_PACKAGE_LIST_MISSING);


init_esx_check(date:"2019-09-19");
flag = 0;


if (esx_check(ver:"ESXi 6.0", vib:"VMware:esx-base:6.0.0-3.125.14475122")) flag++;
if (esx_check(ver:"ESXi 6.0", vib:"VMware:vsan:6.0.0-3.125.14292904")) flag++;
if (esx_check(ver:"ESXi 6.0", vib:"VMware:vsanhealth:6.0.0-3000000.3.0.3.125.14292905")) flag++;

if (esx_check(ver:"ESXi 6.5", vib:"VMware:esx-base:6.5.0-2.83.13004031")) flag++;
if (esx_check(ver:"ESXi 6.5", vib:"VMware:esx-tboot:6.5.0-2.83.13004031")) flag++;
if (esx_check(ver:"ESXi 6.5", vib:"VMware:vsan:6.5.0-2.83.12559347")) flag++;
if (esx_check(ver:"ESXi 6.5", vib:"VMware:vsanhealth:6.5.0-2.83.12559353")) flag++;

if (esx_check(ver:"ESXi 6.7", vib:"VMware:esx-base:6.7.0-1.44.12986307")) flag++;
if (esx_check(ver:"ESXi 6.7", vib:"VMware:esx-update:6.7.0-1.44.12986307")) flag++;
if (esx_check(ver:"ESXi 6.7", vib:"VMware:vsan:6.7.0-1.44.11399678")) flag++;
if (esx_check(ver:"ESXi 6.7", vib:"VMware:vsanhealth:6.7.0-1.44.11399680")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:esx_report_get());
  else security_hole(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");

#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(129496);
  script_version("1.4");
  script_cvs_date("Date: 2019/10/31 15:18:51");

  script_cve_id("CVE-2019-5527", "CVE-2019-5535");
  script_xref(name:"VMSA", value:"2019-0014");
  script_xref(name:"IAVA", value:"2019-A-0344");

  script_name(english:"VMware Fusion 11.0.x < 11.5.0 Multiple Vulnerabilities (VMSA-2019-0014)");

  script_set_attribute(attribute:"synopsis", value:
"A virtualization application installed on the remote macOS or Mac OS X host is affected by multiple vulnerabilities");
  script_set_attribute(attribute:"description", value:
"The version of VMware Fusion installed on the remote macOS or Mac OS X host is 11.0.x prior to 11.5.0. It is, therefore,
affected by the following issues:

  - A use-after-free error in the virtual sound device that
    allows a local attacker on the guest machine with low
    privileges to execute code on the host. (CVE-2019-5527)

  - A denial of service vulnerability caused by improper
    handling of some IPv6 packets. An attacker can exploit
    this vulnerability to disallow network access for all
    guest machines using the VMware NAT mode. To exploit
    this vulnerability, the attacker must send specially
    crafted IPv6 packets from a guest machine when IPv6 mode
    for VMNAT is enabled. (CVE-2019-5535)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://www.vmware.com/security/advisories/VMSA-2019-0014.html");
  script_set_attribute(attribute:"solution", value:
"Update to VMware Fusion version 11.5.0, or later.");
  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:C/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-2019-5527");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/09/19");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/09/19");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/10/02");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:vmware:fusion");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"MacOS X Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("macosx_fusion_detect.nasl");
  script_require_keys("Host/local_checks_enabled", "installed_sw/VMware Fusion");

  exit(0);
}

include('vcf.inc');


app_info = vcf::get_app_info(app:'VMware Fusion');

constraints = [
  { 'min_version' : '11.0', 'fixed_version' : '11.5.0' }
];

vcf::check_version_and_report(app_info:app_info, constraints:constraints, severity:SECURITY_HOLE);

#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(129497);
  script_version("1.4");
  script_cvs_date("Date: 2019/10/31 15:18:51");

  script_cve_id("CVE-2019-5527");
  script_xref(name:"VMSA", value:"2019-0014");
  script_xref(name:"IAVA", value:"2019-A-0344");

  script_name(english:"ESXi 6.0 / 6.5 / 6.7 Use-After-Free (VMSA-2019-0014)");

  script_set_attribute(attribute:"synopsis", value:
"The remote VMware ESXi host is missing a security patch and is affected by a use-after-free error.");
  script_set_attribute(attribute:"description", value:
"The remote VMware ESXi host is version 6.0, 6.5 or 6.7 and is affected by a use-after-free error in the virtual sound
device that allows a local attacker on the guest machine with low privileges to execute code on the host.

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://www.vmware.com/security/advisories/VMSA-2019-0014.html");
  script_set_attribute(attribute:"solution", value:
"Apply the appropriate patch as referenced in the vendor advisory.");
  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:C/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-2019-5527");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/09/19");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/09/19");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/10/02");

  script_set_attribute(attribute:"potential_vulnerability", value:"true");
  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:vmware:esxi");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Misc.");

  script_copyright(english:"This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("vmware_vsphere_detect.nbin");
  script_require_keys("Settings/ParanoidReport", "Host/VMware/version", "Host/VMware/release");

  exit(0);
}

include('audit.inc');
include('global_settings.inc');
include('misc_func.inc');

if (report_paranoia < 2) audit(AUDIT_PARANOID);

fixes = make_array(
  '6.0', '14513180',
  '6.5', '13004031',
  '6.7', '12986307'
);

rel = get_kb_item_or_exit('Host/VMware/release');
if ('ESXi' >!< rel) audit(AUDIT_OS_NOT, 'ESXi');

ver = get_kb_item_or_exit('Host/VMware/version');

match = pregmatch(pattern:'^ESXi? ([0-9]+\\.[0-9]+).*$', string:ver);
if (isnull(match)) audit(AUDIT_UNKNOWN_BUILD, 'VMware ESXi', '6.0 / 6.5 / 6.7');
ver = match[1];

if (ver !~ '^6\\.(0|5|7)$') audit(AUDIT_OS_NOT, 'ESXi 6.0 / 6.5 / 6.7');

fixed_build = int(fixes[ver]);

if (empty_or_null(fixed_build)) audit(AUDIT_VER_FORMAT, ver);

match = pregmatch(pattern:'^VMware ESXi.*build-([0-9]+)$', string:rel);
if (isnull(match)) audit(AUDIT_UNKNOWN_BUILD, 'VMware ESXi', '6.0 / 6.5 / 6.7');

build = int(match[1]);

if (build >= fixed_build) audit(AUDIT_INST_VER_NOT_VULN, 'VMware ESXi', ver + ' build ' + build);

report = '\n  ESXi version    : ' + ver +
         '\n  Installed build : ' + build +
         '\n  Fixed build     : ' + fixed_build +
         '\n';

security_report_v4(port:0, severity:SECURITY_HOLE, extra:report);

#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(129498);
  script_version("1.4");
  script_cvs_date("Date: 2019/10/31 15:18:51");

  script_cve_id("CVE-2019-5527");
  script_xref(name:"VMSA", value:"2019-0014");
  script_xref(name:"IAVA", value:"2019-A-0344");

  script_name(english:"VMware Horizon View Client 5.x < 5.2.0 Use-After-Free (VMSA-2019-0014)");
  script_summary(english:"Checks the VMware Horizon View Client version.");

  script_set_attribute(attribute:"synopsis", value:
"A virtualization application installed on the remote host is affected by a use-after-free error.");
  script_set_attribute(attribute:"description", value:
"The version of VMware Horizon View Client installed on the remote host is 5.x prior to 5.2.0. It is, therefore,
affected by a use-after-free error in the virtual sound device that allows a local attacker on the guest machine with
low privileges to execute code on the host.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://www.vmware.com/security/advisories/VMSA-2019-0014.html");
  script_set_attribute(attribute:"solution", value:
"Update to Horizon View Client version 5.2.0, or later.");
  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:C/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-2019-5527");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/09/19");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/09/19");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/10/02");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:vmware:horizon_view_client");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Misc.");

  script_copyright(english:"This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("vmware_horizon_view_client_installed_nix.nbin", "vmware_horizon_view_client_installed.nbin", "macosx_vmware_horizon_view_client_installed.nbin");
  script_require_keys("installed_sw/VMware Horizon View Client");

  exit(0);
}

include('vcf.inc');

if (get_kb_item("SMB/Registry/Enumerated")) win_local = TRUE;

app_info = vcf::get_app_info(app:'VMware Horizon View Client', win_local:win_local);

constraints = [{ 'min_version' : '5', 'fixed_version' : '5.2.0' }];

vcf::check_version_and_report(app_info:app_info, constraints:constraints, severity:SECURITY_HOLE);

#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(129495);
  script_version("1.5");
  script_cvs_date("Date: 2019/10/31 15:18:51");

  script_cve_id("CVE-2019-5527", "CVE-2019-5535");
  script_xref(name:"VMSA", value:"2019-0014");
  script_xref(name:"IAVA", value:"2019-A-0344");

  script_name(english:"VMware Workstation 15.0.x < 15.5.0 Multiple Vulnerabilities (VMSA-2019-0014)");

  script_set_attribute(attribute:"synopsis", value:
"A virtualization application installed on the remote host is affected by multiple vulnerabilities");
  script_set_attribute(attribute:"description", value:
"The version of VMware Workstation installed on the remote host is 15.0.x prior to 15.5.0. It is, therefore, affected by
the following issues:

  - A use-after-free error in the virtual sound device that
    allows a local attacker on the guest machine with low
    privileges to execute code on the host. (CVE-2019-5527)

  - A denial of service vulnerability caused by improper
    handling of some IPv6 packets. An attacker can exploit
    this vulnerability to disallow network access for all
    guest machines using the VMware NAT mode. To exploit
    this vulnerability, the attacker must send specially
    crafted IPv6 packets from a guest machine when IPv6 mode
    for VMNAT is enabled. (CVE-2019-5535)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://www.vmware.com/security/advisories/VMSA-2019-0014.html");
  script_set_attribute(attribute:"solution", value:
"Update to VMware Workstation version 15.5.0, or later.");
  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:C/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-2019-5527");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/09/19");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/09/19");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/10/02");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:vmware:workstation");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"General");

  script_copyright(english:"This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("vmware_workstation_detect.nasl", "vmware_workstation_linux_installed.nbin");
  script_require_keys("installed_sw/VMware Workstation");

  exit(0);
}

include('vcf.inc');

if (get_kb_item("SMB/Registry/Enumerated")) win_local = TRUE;

app_info = vcf::get_app_info(app:'VMware Workstation', win_local:win_local);

constraints = [
  { 'min_version' : '15.0', 'fixed_version' : '15.5.0' }
];

vcf::check_version_and_report(app_info:app_info, constraints:constraints, severity:SECURITY_HOLE);