The remote NewStart CGSL host, running version CORE 5.04 / MAIN 5.04, has samba packages installed that are affected by multiple vulnerabilities:
A null pointer dereference flaw was found in Samba RPC external printer service. An attacker could use this flaw to cause the printer spooler service to crash.
(CVE-2018-1050)
A flaw was found in the way samba allowed the use of weak NTLMv1 authentication even when NTLMv1 was explicitly disabled. A man-in-the-middle attacker could use this flaw to read the credential and other details passed between the samba server and client.
(CVE-2018-1139)
A heap-buffer overflow was found in the way samba clients processed extra long filename in a directory listing. A malicious samba server could use this flaw to cause arbitrary code execution on a samba client.
(CVE-2018-10858)
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 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from ZTE advisory NS-SA-2019-0069. The text
# itself is copyright (C) ZTE, Inc.
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(127271);
script_version("1.4");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/14");
script_cve_id("CVE-2018-1050", "CVE-2018-1139", "CVE-2018-10858");
script_name(english:"NewStart CGSL CORE 5.04 / MAIN 5.04 : samba Multiple Vulnerabilities (NS-SA-2019-0069)");
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 CORE 5.04 / MAIN 5.04, has samba packages installed that are affected by
multiple vulnerabilities:
- A null pointer dereference flaw was found in Samba RPC
external printer service. An attacker could use this
flaw to cause the printer spooler service to crash.
(CVE-2018-1050)
- A flaw was found in the way samba allowed the use of
weak NTLMv1 authentication even when NTLMv1 was
explicitly disabled. A man-in-the-middle attacker could
use this flaw to read the credential and other details
passed between the samba server and client.
(CVE-2018-1139)
- A heap-buffer overflow was found in the way samba
clients processed extra long filename in a directory
listing. A malicious samba server could use this flaw to
cause arbitrary code execution on a samba client.
(CVE-2018-10858)
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-2019-0069");
script_set_attribute(attribute:"solution", value:
"Upgrade the vulnerable CGSL samba 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:P/I:P/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:H/I:H/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-2018-10858");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"vuln_publication_date", value:"2018/03/13");
script_set_attribute(attribute:"patch_publication_date", value:"2019/07/17");
script_set_attribute(attribute:"plugin_publication_date", value:"2019/08/12");
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) 2019-2021 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 CORE 5.04" &&
release !~ "CGSL MAIN 5.04")
audit(AUDIT_OS_NOT, 'NewStart CGSL CORE 5.04 / NewStart CGSL MAIN 5.04');
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 CORE 5.04": [
"ctdb-4.8.3-4.el7",
"ctdb-tests-4.8.3-4.el7",
"libsmbclient-4.8.3-4.el7",
"libsmbclient-devel-4.8.3-4.el7",
"libwbclient-4.8.3-4.el7",
"libwbclient-devel-4.8.3-4.el7",
"samba-4.8.3-4.el7",
"samba-client-4.8.3-4.el7",
"samba-client-libs-4.8.3-4.el7",
"samba-common-4.8.3-4.el7",
"samba-common-libs-4.8.3-4.el7",
"samba-common-tools-4.8.3-4.el7",
"samba-dc-4.8.3-4.el7",
"samba-dc-libs-4.8.3-4.el7",
"samba-debuginfo-4.8.3-4.el7",
"samba-devel-4.8.3-4.el7",
"samba-krb5-printing-4.8.3-4.el7",
"samba-libs-4.8.3-4.el7",
"samba-pidl-4.8.3-4.el7",
"samba-python-4.8.3-4.el7",
"samba-python-test-4.8.3-4.el7",
"samba-test-4.8.3-4.el7",
"samba-test-libs-4.8.3-4.el7",
"samba-vfs-glusterfs-4.8.3-4.el7",
"samba-winbind-4.8.3-4.el7",
"samba-winbind-clients-4.8.3-4.el7",
"samba-winbind-krb5-locator-4.8.3-4.el7",
"samba-winbind-modules-4.8.3-4.el7"
],
"CGSL MAIN 5.04": [
"ctdb-4.8.3-4.el7",
"ctdb-tests-4.8.3-4.el7",
"libsmbclient-4.8.3-4.el7",
"libsmbclient-devel-4.8.3-4.el7",
"libwbclient-4.8.3-4.el7",
"libwbclient-devel-4.8.3-4.el7",
"samba-4.8.3-4.el7",
"samba-client-4.8.3-4.el7",
"samba-client-libs-4.8.3-4.el7",
"samba-common-4.8.3-4.el7",
"samba-common-libs-4.8.3-4.el7",
"samba-common-tools-4.8.3-4.el7",
"samba-dc-4.8.3-4.el7",
"samba-dc-libs-4.8.3-4.el7",
"samba-debuginfo-4.8.3-4.el7",
"samba-devel-4.8.3-4.el7",
"samba-krb5-printing-4.8.3-4.el7",
"samba-libs-4.8.3-4.el7",
"samba-pidl-4.8.3-4.el7",
"samba-python-4.8.3-4.el7",
"samba-python-test-4.8.3-4.el7",
"samba-test-4.8.3-4.el7",
"samba-test-libs-4.8.3-4.el7",
"samba-vfs-glusterfs-4.8.3-4.el7",
"samba-winbind-4.8.3-4.el7",
"samba-winbind-clients-4.8.3-4.el7",
"samba-winbind-krb5-locator-4.8.3-4.el7",
"samba-winbind-modules-4.8.3-4.el7"
]
};
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, "samba");
}