4.7 Medium
CVSS2
Attack Vector
LOCAL
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
NONE
Availability Impact
NONE
AV:L/AC:M/Au:N/C:C/I:N/A:N
5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
0.003 Low
EPSS
Percentile
65.7%
vCenter Server, ESXi, Workstation, and Fusion update speculative execution control mechanism for Virtual Machines (VMs). As a result, a patched Guest Operating System (GOS) can remediate the Speculative Store bypass issue (CVE-2018-3639) using the Speculative-Store- Bypass-Disable (SSBD) control bit. This issue may allow for information disclosure in applications and/or execution runtimes which rely on managed code security mechanisms. Based on current evaluations, we do not believe that CVE-2018-3639 could allow for VM to VM or Hypervisor to VM Information disclosure.
The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the identifier CVE-2018-3639 to this issue.
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from VMware Security Advisory 2018-0012.
# The text itself is copyright (C) VMware Inc.
#
include("compat.inc");
if (description)
{
script_id(110901);
script_version("1.12");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/04/15");
script_cve_id("CVE-2018-3639", "CVE-2018-3640");
script_xref(name:"VMSA", value:"2018-0012");
script_name(english:"VMSA-2018-0012 : VMware vSphere, Workstation and Fusion updates enable Hypervisor-Assisted Guest Mitigations for Speculative Store Bypass issue (Spectre)");
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:
"vCenter Server, ESXi, Workstation, and Fusion update speculative
execution control mechanism for Virtual Machines (VMs). As a result,
a patched Guest Operating System (GOS) can remediate the Speculative
Store bypass issue (CVE-2018-3639) using the Speculative-Store-
Bypass-Disable (SSBD) control bit. This issue may allow for
information disclosure in applications and/or execution runtimes
which rely on managed code security mechanisms. Based on current
evaluations, we do not believe that CVE-2018-3639 could allow for VM
to VM or Hypervisor to VM Information disclosure.
The Common Vulnerabilities and Exposures project (cve.mitre.org) has
assigned the identifier CVE-2018-3639 to this issue."
);
script_set_attribute(
attribute:"see_also",
value:"http://lists.vmware.com/pipermail/security-announce/2018/000417.html"
);
script_set_attribute(attribute:"solution", value:"Apply the missing patches.");
script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/C:C/I:N/A:N");
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:C/C:H/I:N/A:N");
script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/o:vmware:esxi:5.5");
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:"2018/05/22");
script_set_attribute(attribute:"patch_publication_date", value:"2018/05/21");
script_set_attribute(attribute:"plugin_publication_date", value:"2018/07/03");
script_set_attribute(attribute:"in_the_news", value:"true");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2018-2021 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:"2018-05-21");
flag = 0;
if (esx_check(ver:"ESXi 5.5", vib:"VMware:cpu-microcode:5.5.0-3.117.8934887")) flag++;
if (esx_check(ver:"ESXi 5.5", vib:"VMware:esx-base:5.5.0-3.117.8934887")) flag++;
if (esx_check(ver:"ESXi 6.0", vib:"VMware:cpu-microcode:6.0.0-3.87.8934903")) flag++;
if (esx_check(ver:"ESXi 6.0", vib:"VMware:esx-base:6.0.0-3.87.8934903")) flag++;
if (esx_check(ver:"ESXi 6.0", vib:"VMware:vsan:6.0.0-3.87.8155259")) flag++;
if (esx_check(ver:"ESXi 6.0", vib:"VMware:vsanhealth:6.0.0-3000000.3.0.3.87.8155260")) flag++;
if (esx_check(ver:"ESXi 6.5", vib:"VMware:cpu-microcode:6.5.0-2.54.8935087")) flag++;
if (esx_check(ver:"ESXi 6.5", vib:"VMware:esx-base:6.5.0-2.54.8935087")) flag++;
if (esx_check(ver:"ESXi 6.5", vib:"VMware:esx-tboot:6.5.0-2.54.8935087")) flag++;
if (esx_check(ver:"ESXi 6.5", vib:"VMware:vsan:6.5.0-2.54.8359236")) flag++;
if (esx_check(ver:"ESXi 6.5", vib:"VMware:vsanhealth:6.5.0-2.54.8359237")) flag++;
if (esx_check(ver:"ESXi 6.7", vib:"VMware:cpu-microcode:6.7.0-0.14.8941472")) flag++;
if (esx_check(ver:"ESXi 6.7", vib:"VMware:esx-base:6.7.0-0.14.8941472")) flag++;
if (esx_check(ver:"ESXi 6.7", vib:"VMware:vsan:6.7.0-0.14.8941472")) flag++;
if (esx_check(ver:"ESXi 6.7", vib:"VMware:vsanhealth:6.7.0-0.14.8941472")) flag++;
if (flag)
{
if (report_verbosity > 0) security_warning(port:0, extra:esx_report_get());
else security_warning(0);
exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
4.7 Medium
CVSS2
Attack Vector
LOCAL
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
NONE
Availability Impact
NONE
AV:L/AC:M/Au:N/C:C/I:N/A:N
5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
0.003 Low
EPSS
Percentile
65.7%