9 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:S/C:C/I:C/A:C
9.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
8.4 High
AI Score
Confidence
High
0.002 Low
EPSS
Percentile
61.9%
A security vulnerability has been identified in Citrix XenServer that may
allow a malicious administrator of a guest VM to compromise the host.
# SPDX-FileCopyrightText: 2017 Greenbone AG
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only
CPE = "cpe:/a:citrix:xenserver";
if (description)
{
script_oid("1.3.6.1.4.1.25623.1.0.140450");
script_version("2023-07-14T16:09:27+0000");
script_tag(name:"last_modification", value:"2023-07-14 16:09:27 +0000 (Fri, 14 Jul 2023)");
script_tag(name:"creation_date", value:"2017-10-25 09:32:33 +0700 (Wed, 25 Oct 2017)");
script_tag(name:"cvss_base", value:"9.0");
script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:S/C:C/I:C/A:C");
script_tag(name:"severity_vector", value:"CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H");
script_tag(name:"severity_origin", value:"NVD");
script_tag(name:"severity_date", value:"2019-10-03 00:03:00 +0000 (Thu, 03 Oct 2019)");
script_cve_id("CVE-2017-15597");
script_tag(name:"qod_type", value:"package");
script_tag(name:"solution_type", value:"VendorFix");
script_name("Citrix XenServer Security Update (CTX229057)");
script_category(ACT_GATHER_INFO);
script_copyright("Copyright (C) 2017 Greenbone AG");
script_family("Citrix Xenserver Local Security Checks");
script_dependencies("gb_xenserver_version.nasl");
script_mandatory_keys("xenserver/product_version", "xenserver/patches");
script_tag(name:"summary", value:"A security vulnerability has been identified in Citrix XenServer that may
allow a malicious administrator of a guest VM to compromise the host.");
script_tag(name:"insight", value:"The following vulnerabilities have been addressed:
- CVE-2017-15597: pin count / page reference race in grant table code");
script_tag(name:"affected", value:"XenServer versions 7.2, 7.1, 7.0, 6.5");
script_tag(name:"solution", value:"Apply the hotfix referenced in the advisory.");
script_tag(name:"vuldetect", value:"Check the installed hotfixes.");
script_xref(name:"URL", value:"https://support.citrix.com/article/CTX229057");
exit(0);
}
include("citrix_version_func.inc");
include("list_array_func.inc");
include("host_details.inc");
include("misc_func.inc");
if (!version = get_app_version(cpe: CPE))
exit(0);
if (!hotfixes = get_kb_item("xenserver/patches"))
exit(0);
patches = make_array();
patches['7.2.0'] = make_list('XS72E009');
patches['7.1.0'] = make_list('XS71E017');
patches['7.0.0'] = make_list('XS70E047');
patches['6.5.0'] = make_list('XS65ESP1063');
citrix_xenserver_check_report_is_vulnerable(version: version, hotfixes: hotfixes, patches: patches);
exit(99);
9 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:S/C:C/I:C/A:C
9.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
8.4 High
AI Score
Confidence
High
0.002 Low
EPSS
Percentile
61.9%