The remote NewStart CGSL host, running version MAIN 6.02, has bind packages installed that are affected by multiple vulnerabilities:
In ISC BIND9 versions BIND 9.11.14 -> 9.11.19, BIND 9.14.9 -> 9.14.12, BIND 9.16.0 -> 9.16.3, BIND Supported Preview Edition 9.11.14-S1 -> 9.11.19-S1: Unless a nameserver is providing authoritative service for one or more zones and at least one zone contains an empty non-terminal entry containing an asterisk (*) character, this defect cannot be encountered. A would-be attacker who is allowed to change zone content could theoretically introduce such a record in order to exploit this condition to cause denial of service, though we consider the use of this vector unlikely because any such attack would require a significant privilege level and be easily traceable. (CVE-2020-8619)
In BIND 9.0.0 -> 9.11.21, 9.12.0 -> 9.16.5, 9.17.0 -> 9.17.3, also affects 9.9.3-S1 -> 9.11.21-S1 of the BIND 9 Supported Preview Edition, An attacker on the network path for a TSIG-signed request, or operating the server receiving the TSIG-signed request, could send a truncated response to that request, triggering an assertion failure, causing the server to exit. Alternately, an off-path attacker would have to correctly guess when a TSIG-signed request was sent, along with other characteristics of the packet and message, and spoof a truncated response to trigger an assertion failure, causing the server to exit.
(CVE-2020-8622)
In BIND 9.10.0 -> 9.11.21, 9.12.0 -> 9.16.5, 9.17.0 -> 9.17.3, also affects 9.10.5-S1 -> 9.11.21-S1 of the BIND 9 Supported Preview Edition, An attacker that can reach a vulnerable system with a specially crafted query packet can trigger a crash. To be vulnerable, the system must: * be running BIND that was built with
–enable-native-pkcs11 * be signing one or more zones with an RSA key * be able to receive queries from a possible attacker (CVE-2020-8623)
In BIND 9.9.12 -> 9.9.13, 9.10.7 -> 9.10.8, 9.11.3 -> 9.11.21, 9.12.1 -> 9.16.5, 9.17.0 -> 9.17.3, also affects 9.9.12-S1 -> 9.9.13-S1, 9.11.3-S1 -> 9.11.21-S1 of the BIND 9 Supported Preview Edition, An attacker who has been granted privileges to change a specific subset of the zone’s content could abuse these unintended additional privileges to update other contents of the zone. (CVE-2020-8624)
Note that Nessus has not tested for this issue but has instead relied only on the application’s self-reported version number.
##
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from ZTE advisory NS-SA-2021-0064. The text
# itself is copyright (C) ZTE, Inc.
##
include('compat.inc');
if (description)
{
script_id(147396);
script_version("1.3");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/03/11");
script_cve_id(
"CVE-2020-8619",
"CVE-2020-8622",
"CVE-2020-8623",
"CVE-2020-8624"
);
script_name(english:"NewStart CGSL MAIN 6.02 : bind Multiple Vulnerabilities (NS-SA-2021-0064)");
script_set_attribute(attribute:"synopsis", value:
"The remote machine is affected by multiple vulnerabilities.");
script_set_attribute(attribute:"description", value:
"The remote NewStart CGSL host, running version MAIN 6.02, has bind packages installed that are affected by multiple
vulnerabilities:
- In ISC BIND9 versions BIND 9.11.14 -> 9.11.19, BIND 9.14.9 -> 9.14.12, BIND 9.16.0 -> 9.16.3, BIND
Supported Preview Edition 9.11.14-S1 -> 9.11.19-S1: Unless a nameserver is providing authoritative service
for one or more zones and at least one zone contains an empty non-terminal entry containing an asterisk
(*) character, this defect cannot be encountered. A would-be attacker who is allowed to change zone
content could theoretically introduce such a record in order to exploit this condition to cause denial of
service, though we consider the use of this vector unlikely because any such attack would require a
significant privilege level and be easily traceable. (CVE-2020-8619)
- In BIND 9.0.0 -> 9.11.21, 9.12.0 -> 9.16.5, 9.17.0 -> 9.17.3, also affects 9.9.3-S1 -> 9.11.21-S1 of the
BIND 9 Supported Preview Edition, An attacker on the network path for a TSIG-signed request, or operating
the server receiving the TSIG-signed request, could send a truncated response to that request, triggering
an assertion failure, causing the server to exit. Alternately, an off-path attacker would have to
correctly guess when a TSIG-signed request was sent, along with other characteristics of the packet and
message, and spoof a truncated response to trigger an assertion failure, causing the server to exit.
(CVE-2020-8622)
- In BIND 9.10.0 -> 9.11.21, 9.12.0 -> 9.16.5, 9.17.0 -> 9.17.3, also affects 9.10.5-S1 -> 9.11.21-S1 of the
BIND 9 Supported Preview Edition, An attacker that can reach a vulnerable system with a specially crafted
query packet can trigger a crash. To be vulnerable, the system must: * be running BIND that was built with
--enable-native-pkcs11 * be signing one or more zones with an RSA key * be able to receive queries from
a possible attacker (CVE-2020-8623)
- In BIND 9.9.12 -> 9.9.13, 9.10.7 -> 9.10.8, 9.11.3 -> 9.11.21, 9.12.1 -> 9.16.5, 9.17.0 -> 9.17.3, also
affects 9.9.12-S1 -> 9.9.13-S1, 9.11.3-S1 -> 9.11.21-S1 of the BIND 9 Supported Preview Edition, An
attacker who has been granted privileges to change a specific subset of the zone's content could abuse
these unintended additional privileges to update other contents of the zone. (CVE-2020-8624)
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-2021-0064");
script_set_attribute(attribute:"solution", value:
"Upgrade the vulnerable CGSL bind packages. Note that updated packages may not be available yet. Please contact ZTE for
more information.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:N/I:P/A:N");
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:L/A:N");
script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-8624");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"vuln_publication_date", value:"2020/06/17");
script_set_attribute(attribute:"patch_publication_date", value:"2021/03/09");
script_set_attribute(attribute:"plugin_publication_date", value:"2021/03/10");
script_set_attribute(attribute:"plugin_type", value:"local");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"NewStart CGSL Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2021 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('audit.inc');
include('global_settings.inc');
include('rpm.inc');
if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item('Host/ZTE-CGSL/release');
if (isnull(release) || release !~ "^CGSL (MAIN|CORE)") audit(AUDIT_OS_NOT, 'NewStart Carrier Grade Server Linux');
if (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);
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);
flag = 0;
pkgs = {
'CGSL MAIN 6.02': [
'bind-9.11.20-5.el8',
'bind-chroot-9.11.20-5.el8',
'bind-debuginfo-9.11.20-5.el8',
'bind-debugsource-9.11.20-5.el8',
'bind-devel-9.11.20-5.el8',
'bind-export-devel-9.11.20-5.el8',
'bind-export-libs-9.11.20-5.el8',
'bind-export-libs-debuginfo-9.11.20-5.el8',
'bind-libs-9.11.20-5.el8',
'bind-libs-debuginfo-9.11.20-5.el8',
'bind-libs-lite-9.11.20-5.el8',
'bind-libs-lite-debuginfo-9.11.20-5.el8',
'bind-license-9.11.20-5.el8',
'bind-lite-devel-9.11.20-5.el8',
'bind-pkcs11-9.11.20-5.el8',
'bind-pkcs11-debuginfo-9.11.20-5.el8',
'bind-pkcs11-devel-9.11.20-5.el8',
'bind-pkcs11-libs-9.11.20-5.el8',
'bind-pkcs11-libs-debuginfo-9.11.20-5.el8',
'bind-pkcs11-utils-9.11.20-5.el8',
'bind-pkcs11-utils-debuginfo-9.11.20-5.el8',
'bind-sdb-9.11.20-5.el8',
'bind-sdb-chroot-9.11.20-5.el8',
'bind-sdb-debuginfo-9.11.20-5.el8',
'bind-utils-9.11.20-5.el8',
'bind-utils-debuginfo-9.11.20-5.el8',
'python3-bind-9.11.20-5.el8'
]
};
pkg_list = pkgs[release];
foreach (pkg in pkg_list)
if (rpm_check(release:'ZTE ' + release, reference:pkg)) flag++;
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_WARNING,
extra : rpm_report_get()
);
exit(0);
}
else
{
tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'bind');
}