3.5 Low
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
SINGLE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:S/C:N/I:N/A:P
6.5 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
6.6 Medium
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
35.1%
ESXi shader denial-of-service vulnerability - CVE-2019-5536
VMware ESXi, Workstation and Fusion contain a denial-of-service vulnerability in the shader functionality.
Successful exploitation of this issue may allow attackers with normal user privileges to create a denial-of-service condition on their own VM.
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.
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from VMware Security Advisory 2019-0019.
# The text itself is copyright (C) VMware Inc.
#
include('compat.inc');
if (description)
{
script_id(130346);
script_version("1.4");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/04/16");
script_cve_id("CVE-2019-5536");
script_xref(name:"VMSA", value:"2019-0019");
script_name(english:"VMSA-2019-0019 : Denial-of-service vulnerability");
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 shader denial-of-service vulnerability - CVE-2019-5536
VMware ESXi, Workstation and Fusion contain a denial-of-service vulnerability in the shader functionality.
Successful exploitation of this issue may allow attackers with normal user privileges to create a denial-of-service condition on their own VM.
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/2019/000474.html");
script_set_attribute(attribute:"solution", value:
"Apply the missing patches.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:S/C:N/I:N/A:P");
script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/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-2019-5536");
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:"2019/10/28");
script_set_attribute(attribute:"patch_publication_date", value:"2019/10/24");
script_set_attribute(attribute:"plugin_publication_date", value:"2019/10/28");
script_set_attribute(attribute:"plugin_type", value:"local");
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:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"VMware ESX Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2019-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");
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:"2019-10-24");
flag = 0;
if (esx_check(ver:"ESXi 6.5", vib:"VMware:esx-base:6.5.0-3.105.14874964")) flag++;
if (esx_check(ver:"ESXi 6.5", vib:"VMware:esx-tboot:6.5.0-3.105.14874964")) flag++;
if (esx_check(ver:"ESXi 6.5", vib:"VMware:vsan:6.5.0-3.105.14404766")) flag++;
if (esx_check(ver:"ESXi 6.5", vib:"VMware:vsanhealth:6.5.0-3.105.14404767")) flag++;
if (esx_check(ver:"ESXi 6.7", vib:"VMware:esx-base:6.7.0-2.69.14141615")) flag++;
if (esx_check(ver:"ESXi 6.7", vib:"VMware:esx-update:6.7.0-2.69.14141615")) flag++;
if (esx_check(ver:"ESXi 6.7", vib:"VMware:vsan:6.7.0-2.69.13808269")) flag++;
if (esx_check(ver:"ESXi 6.7", vib:"VMware:vsanhealth:6.7.0-2.69.13808270")) flag++;
if (flag)
{
if (report_verbosity > 0) security_note(port:0, extra:esx_report_get());
else security_note(0);
exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
3.5 Low
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
SINGLE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:S/C:N/I:N/A:P
6.5 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
6.6 Medium
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
35.1%