Vulnerabilities > CVE-2018-6969 - Out-of-bounds Read vulnerability in VMWare Tools

047910
CVSS 4.4 - MEDIUM
Attack vector
LOCAL
Attack complexity
MEDIUM
Privileges required
NONE
Confidentiality impact
PARTIAL
Integrity impact
PARTIAL
Availability impact
PARTIAL
local
vmware
CWE-125
nessus
NVD
Published: 2018-07-13
Updated: 2018-09-11

Summary

VMware Tools (10.x and prior before 10.3.0) contains an out-of-bounds read vulnerability in HGFS. Successful exploitation of this issue may lead to information disclosure or may allow attackers to escalate their privileges on the guest VMs. In order to be able to exploit this issue, file sharing must be enabled.

Vulnerable Configurations

Part Description Count
Application
Vmware
76

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Overread Buffers
    An adversary attacks a target by providing input that causes an application to read beyond the boundary of a defined buffer. This typically occurs when a value influencing where to start or stop reading is set to reflect positions outside of the valid memory location of the buffer. This type of attack may result in exposure of sensitive information, a system crash, or arbitrary code execution.

Nessus

NASL familyWindows
NASL idVMWARE_TOOLS_WIN_VMSA_2018_0017.NASL
descriptionThe version of VMware Tools installed on the remote Windows host is 10.x prior to 10.3.0. It is, therefore, affected by an information disclosure vulnerability. Note that Nessus has not tested for these issues but has instead relied only on the application
last seen2020-06-01
modified2020-06-02
plugin id111220
published2018-07-20
reporterThis script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
sourcehttps://www.tenable.com/plugins/nessus/111220
titleVMware Tools 10.x < 10.3.0 Multiple Vulnerabilities (VMSA-2018-0017)
code
#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(111220);
  script_version("1.4");
  script_cvs_date("Date: 2019/11/04");

  script_cve_id("CVE-2018-6969");
  script_bugtraq_id(104737);
  script_xref(name:"VMSA", value:"2018-0017");

  script_name(english:"VMware Tools 10.x < 10.3.0 Multiple Vulnerabilities (VMSA-2018-0017)");
  script_summary(english:"Checks the VMware Tools version.");

  script_set_attribute(attribute:"synopsis", value:
"A virtualization tool suite is installed on the remote Windows host is
affected by multiple vulnerabilities");
  script_set_attribute(attribute:"description", value:
"The version of VMware Tools installed on the remote Windows host
is 10.x prior to 10.3.0. It is, therefore, affected by
an information disclosure vulnerability.

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-2018-0017.html");
  # https://my.vmware.com/web/vmware/details?downloadGroup=VMTOOLS1030&productId=491
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?5fbb6d9b");
  script_set_attribute(attribute:"solution", value:
"Upgrade to VMware Tools version 10.3.0 or later.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/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:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2018-6969");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/07/12");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/07/12");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/07/20");

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

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

  script_copyright(english:"This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("vmware_tools_installed.nbin", "vmware_vsphere_detect.nbin", "vmware_esxi_detection.nbin");
  script_require_keys("SMB/Registry/Enumerated", "installed_sw/VMware Tools", "Host/ESXi/checked");

  exit(0);
}

include("vcf.inc");

get_kb_item_or_exit("SMB/Registry/Enumerated");

esx = get_kb_item("Host/ESXi");
if (esx)
  audit(AUDIT_HOST_NOT, "affected");


app_info = vcf::get_app_info(app:"VMware Tools", win_local:TRUE);

constraints = [{ "min_version" : "0", "fixed_version" : "10.3.0" }];

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

References