CVSS2
Attack Vector
LOCAL
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:L/AC:M/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
12.6%
The version of VMware Tools installed on the remote Windows host is 10.x, which is prior to 11.0.0. It is, therefore, affected by a race condition which may allow for privilege escalation in the virtual machine where Tools is installed.
An authenticated, local attacker can exploit this to escalate their privileges on a Windows virtual machine.
Note that Nessus has not tested for these issues but has instead relied only on the application’s self-reported version number.
#
# (C) Tenable Network Security, Inc.
#
include('compat.inc');
if (description)
{
script_id(133208);
script_version("1.7");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/07/01");
script_cve_id("CVE-2020-3941");
script_xref(name:"VMSA", value:"2020-0002");
script_xref(name:"IAVB", value:"2020-B-0005-S");
script_name(english:"VMware Tools 10.x < 11.0.0 Privilege Escalation (VMSA-2020-0002)");
script_set_attribute(attribute:"synopsis", value:
"A virtualization tool suite is installed on the remote Windows host is affected by a privilege escalation
vulnerability.");
script_set_attribute(attribute:"description", value:
"The version of VMware Tools installed on the remote Windows host is 10.x, which is prior to 11.0.0. It is, therefore,
affected by a race condition which may allow for privilege escalation in the virtual machine where Tools is installed.
An authenticated, local attacker can exploit this to escalate their privileges on a Windows virtual machine.
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-2020-0002.html");
script_set_attribute(attribute:"solution", value:
"Upgrade to VMware Tools version 11.0.0 or later or apply the workaround mentioned in the vendor advisory.");
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-2020-3941");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"vuln_publication_date", value:"2020/01/15");
script_set_attribute(attribute:"patch_publication_date", value:"2020/01/14");
script_set_attribute(attribute:"plugin_publication_date", value:"2020/01/23");
script_set_attribute(attribute:"potential_vulnerability", value:"true");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/a:vmware:tools");
script_set_attribute(attribute:"stig_severity", value:"I");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Windows");
script_copyright(english:"This script is Copyright (C) 2020-2021 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", "Settings/ParanoidReport");
exit(0);
}
include('vcf.inc');
get_kb_item_or_exit("SMB/Registry/Enumerated");
# Paranoid due to lack of workaround check
if (report_paranoia < 2)
audit(AUDIT_PARANOID);
app_info = vcf::get_app_info(app:'VMware Tools', win_local:TRUE);
constraints = [{ 'min_version' : '10.0', 'fixed_version' : '11.0.0' }];
vcf::check_version_and_report(app_info:app_info, constraints:constraints, severity:SECURITY_WARNING);
CVSS2
Attack Vector
LOCAL
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:L/AC:M/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
12.6%