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
8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.6 High
AI Score
Confidence
Low
0.18 Low
EPSS
Percentile
96.2%
QNAP QuTS hero is prone to multiple vulnerabilities in Samba.
# SPDX-FileCopyrightText: 2022 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:/o:qnap:quts_hero";
if(description)
{
script_oid("1.3.6.1.4.1.25623.1.0.170119");
script_version("2023-09-27T05:05:31+0000");
script_tag(name:"last_modification", value:"2023-09-27 05:05:31 +0000 (Wed, 27 Sep 2023)");
script_tag(name:"creation_date", value:"2022-05-30 07:54:46 +0000 (Mon, 30 May 2022)");
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:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H");
script_tag(name:"severity_origin", value:"NVD");
script_tag(name:"severity_date", value:"2022-02-23 15:47:00 +0000 (Wed, 23 Feb 2022)");
script_cve_id("CVE-2021-44141", "CVE-2021-44142", "CVE-2022-0336");
script_tag(name:"qod_type", value:"remote_banner");
script_tag(name:"solution_type", value:"VendorFix");
script_name("QNAP QuTS hero Multiple Samba Vulnerabilities (QSA-22-03)");
script_category(ACT_GATHER_INFO);
script_copyright("Copyright (C) 2022 Greenbone AG");
script_family("General");
script_dependencies("gb_qnap_nas_http_detect.nasl");
script_mandatory_keys("qnap/nas/quts_hero/detected");
script_tag(name:"summary", value:"QNAP QuTS hero is prone to multiple vulnerabilities in Samba.");
script_tag(name:"vuldetect", value:"Checks if a vulnerable version is present on the target host.");
script_tag(name:"insight", value:"The following flaws exist:
- CVE-2021-44141: Information leak via symlinks of existence of files or directories outside of
the exported share
- CVE-2021-44142: Out-of-bounds heap read/write vulnerability in VFS module vfs_fruit allows code
execution
- CVE-2022-0336: Samba AD users with permission to write to an account can impersonate arbitrary
services");
script_tag(name:"affected", value:"QNAP QuTS hero versions h4.5.x and h5.0.0.");
script_tag(name:"solution", value:"Update to version h4.5.4.1951 build 20220218, h5.0.0.1949 build
20220215 or later.
The following mitigation steps are provided by the vendor:
- Disable SMB 1
- Deny guest access to all shared folders");
script_xref(name:"URL", value:"https://www.qnap.com/en/security-advisory/QSA-22-03");
script_xref(name:"URL", value:"https://www.qnap.com/en/release-notes/quts_hero/h5.0.0.1949/20220215");
script_xref(name:"URL", value:"https://www.qnap.com/en/release-notes/quts_hero/h4.5.4.1951/20220218");
script_xref(name:"URL", value:"https://www.samba.org/samba/security/CVE-2021-44141.html");
script_xref(name:"URL", value:"https://www.samba.org/samba/security/CVE-2021-44142.html");
script_xref(name:"URL", value:"https://www.samba.org/samba/security/CVE-2022-0336.html");
exit(0);
}
include("host_details.inc");
include("version_func.inc");
if ( ! version = get_app_version( cpe:CPE, nofork:TRUE ) )
exit( 0 );
build = get_kb_item( "qnap/nas/quts_hero/build" );
if ( version =~ "^h4\.5" ) {
if ( version_is_less( version:version, test_version:"h4.5.4.1951" ) ) {
report = report_fixed_ver( installed_version:version, installed_build:build, fixed_version:"h4.5.4.1951", fixed_build:"20220218" );
security_message( port:0, data:report );
exit( 0 );
}
if ( version_is_equal( version:version, test_version:"h4.5.4.1951" ) &&
( ! build || version_is_less( version:build, test_version:"20220218" ) ) ) {
report = report_fixed_ver( installed_version:version, installed_build:build, fixed_version:"h4.5.4.1951", fixed_build:"20220218" );
security_message( port:0, data:report );
exit( 0 );
}
}
if ( version =~ "^h5" ) {
if ( version_is_less( version:version, test_version:"h5.0.0.1949" ) ) {
report = report_fixed_ver( installed_version:version, installed_build:build, fixed_version:"h5.0.0.1949", fixed_build:"20220215" );
security_message( port:0, data:report );
exit( 0 );
}
if ( version_is_equal( version:version, test_version:"h5.0.0.1949" ) &&
( ! build || version_is_less( version:build, test_version:"20220215" ) ) ) {
report = report_fixed_ver( installed_version:version, installed_build:build, fixed_version:"h5.0.0.1949", fixed_build:"20220215" );
security_message( port:0, data:report );
exit( 0 );
}
}
exit( 99 );
www.qnap.com/en/release-notes/quts_hero/h4.5.4.1951/20220218
www.qnap.com/en/release-notes/quts_hero/h5.0.0.1949/20220215
www.qnap.com/en/security-advisory/QSA-22-03
www.samba.org/samba/security/CVE-2021-44141.html
www.samba.org/samba/security/CVE-2021-44142.html
www.samba.org/samba/security/CVE-2022-0336.html
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
8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.6 High
AI Score
Confidence
Low
0.18 Low
EPSS
Percentile
96.2%