CVSS2
Attack Vector
LOCAL
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:L/AC:M/Au:N/C:N/I:N/A:C
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:H
EPSS
Percentile
15.9%
The remote NewStart CGSL host, running version MAIN 6.02, has kernel packages installed that are affected by a vulnerability:
Note that Nessus has not tested for this issue but has instead relied only on the application’s self-reported version number.
#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from ZTE advisory NS-SA-2022-0099. The text
# itself is copyright (C) ZTE, Inc.
##
include('compat.inc');
if (description)
{
script_id(167499);
script_version("1.2");
script_set_attribute(attribute:"plugin_modification_date", value:"2022/11/15");
script_cve_id("CVE-2020-14416");
script_name(english:"NewStart CGSL MAIN 6.02 : kernel Vulnerability (NS-SA-2022-0099)");
script_set_attribute(attribute:"synopsis", value:
"The remote NewStart CGSL host is affected by a vulnerability.");
script_set_attribute(attribute:"description", value:
"The remote NewStart CGSL host, running version MAIN 6.02, has kernel packages installed that are affected by a
vulnerability:
- In the Linux kernel before 5.4.16, a race condition in tty->disc_data handling in the slip and slcan line
discipline could lead to a use-after-free, aka CID-0ace17d56824. This affects drivers/net/slip/slip.c and
drivers/net/can/slcan.c. (CVE-2020-14416)
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
script_set_attribute(attribute:"see_also", value:"http://security.gd-linux.com/notice/NS-SA-2022-0099");
script_set_attribute(attribute:"see_also", value:"http://security.gd-linux.com/info/CVE-2020-14416");
script_set_attribute(attribute:"solution", value:
"Upgrade the vulnerable CGSL kernel packages. Note that updated packages may not be available yet. Please contact ZTE for
more information.");
script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/C:N/I:N/A:C");
script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:H/UI:R/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-2020-14416");
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:"2020/02/21");
script_set_attribute(attribute:"patch_publication_date", value:"2022/11/09");
script_set_attribute(attribute:"plugin_publication_date", value:"2022/11/15");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:bpftool");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:kernel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:kernel-core");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:kernel-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:kernel-headers");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:kernel-modules");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:kernel-modules-extra");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:kernel-tools");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:kernel-tools-libs");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:perf");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:zte:cgsl_main:python3-perf");
script_set_attribute(attribute:"cpe", value:"cpe:/o:zte:cgsl_main:6");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"NewStart CGSL Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2022 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/ZTE-CGSL/release", "Host/ZTE-CGSL/rpm-list", "Host/cpu");
exit(0);
}
include('rpm.inc');
if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_release = get_kb_item('Host/ZTE-CGSL/release');
if (isnull(os_release) || os_release !~ "^CGSL (MAIN|CORE)") audit(AUDIT_OS_NOT, 'NewStart Carrier Grade Server Linux');
if (os_release !~ "CGSL MAIN 6.02")
audit(AUDIT_OS_NOT, 'NewStart CGSL MAIN 6.02');
if (!get_kb_item('Host/ZTE-CGSL/rpm-list')) audit(AUDIT_PACKAGE_LIST_MISSING);
var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'NewStart Carrier Grade Server Linux', cpu);
var flag = 0;
var pkgs = {
'CGSL MAIN 6.02': [
'bpftool-4.18.0-193.14.2.el8_2.cgslv6_2.509.gacc78a5c6',
'kernel-4.18.0-193.14.2.el8_2.cgslv6_2.509.gacc78a5c6',
'kernel-core-4.18.0-193.14.2.el8_2.cgslv6_2.509.gacc78a5c6',
'kernel-devel-4.18.0-193.14.2.el8_2.cgslv6_2.509.gacc78a5c6',
'kernel-headers-4.18.0-193.14.2.el8_2.cgslv6_2.509.gacc78a5c6',
'kernel-modules-4.18.0-193.14.2.el8_2.cgslv6_2.509.gacc78a5c6',
'kernel-modules-extra-4.18.0-193.14.2.el8_2.cgslv6_2.509.gacc78a5c6',
'kernel-tools-4.18.0-193.14.2.el8_2.cgslv6_2.509.gacc78a5c6',
'kernel-tools-libs-4.18.0-193.14.2.el8_2.cgslv6_2.509.gacc78a5c6',
'perf-4.18.0-193.14.2.el8_2.cgslv6_2.509.gacc78a5c6',
'python3-perf-4.18.0-193.14.2.el8_2.cgslv6_2.509.gacc78a5c6'
]
};
var pkg_list = pkgs[os_release];
foreach (pkg in pkg_list)
if (rpm_check(release:'ZTE ' + os_release, reference:pkg)) flag++;
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_WARNING,
extra : rpm_report_get()
);
exit(0);
}
else
{
var tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'kernel');
}
CVSS2
Attack Vector
LOCAL
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:L/AC:M/Au:N/C:N/I:N/A:C
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:H
EPSS
Percentile
15.9%