CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:P/I:P/A:C
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
33.4%
The remote NewStart CGSL host, running version CORE 5.04 / MAIN 5.04, has xorg-x11-server packages installed that are affected by multiple vulnerabilities:
A flaw was found in the way xserver memory was not properly initialized. This could leak parts of server memory to the X client. In cases where Xorg server runs with elevated privileges, this could result in possible ASLR bypass. Xorg-server before version 1.20.9 is vulnerable. (CVE-2020-14347)
A flaw was found in xorg-x11-server before 1.20.9. An integer underflow in the X input extension protocol decoding in the X server may lead to arbitrary access of memory contents. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. (CVE-2020-14346)
A flaw was found in X.Org Server before xorg-x11-server 1.20.9. An Out-Of-Bounds access in XkbSetNames function may lead to a privilege escalation vulnerability. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. (CVE-2020-14345)
A flaw was found in X.Org Server before xorg-x11-server 1.20.9. An Integer underflow leading to heap- buffer overflow may lead to a privilege escalation vulnerability. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. (CVE-2020-14361, CVE-2020-14362)
A flaw was found in the X.Org Server before version 1.20.10. An out-of-bounds access in the XkbSetMap function may lead to a privilege escalation vulnerability. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. (CVE-2020-14360)
A flaw was found in xorg-x11-server before 1.20.10. A heap-buffer overflow in XkbSetDeviceInfo may lead to a privilege escalation vulnerability. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. (CVE-2020-25712)
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-2021-0013. The text
# itself is copyright (C) ZTE, Inc.
##
include('compat.inc');
if (description)
{
script_id(147371);
script_version("1.4");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/01/11");
script_cve_id(
"CVE-2020-14345",
"CVE-2020-14346",
"CVE-2020-14347",
"CVE-2020-14360",
"CVE-2020-14361",
"CVE-2020-14362",
"CVE-2020-25712"
);
script_name(english:"NewStart CGSL CORE 5.04 / MAIN 5.04 : xorg-x11-server Multiple Vulnerabilities (NS-SA-2021-0013)");
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 xorg-x11-server packages installed that are
affected by multiple vulnerabilities:
- A flaw was found in the way xserver memory was not properly initialized. This could leak parts of server
memory to the X client. In cases where Xorg server runs with elevated privileges, this could result in
possible ASLR bypass. Xorg-server before version 1.20.9 is vulnerable. (CVE-2020-14347)
- A flaw was found in xorg-x11-server before 1.20.9. An integer underflow in the X input extension protocol
decoding in the X server may lead to arbitrary access of memory contents. The highest threat from this
vulnerability is to data confidentiality and integrity as well as system availability. (CVE-2020-14346)
- A flaw was found in X.Org Server before xorg-x11-server 1.20.9. An Out-Of-Bounds access in XkbSetNames
function may lead to a privilege escalation vulnerability. The highest threat from this vulnerability is
to data confidentiality and integrity as well as system availability. (CVE-2020-14345)
- A flaw was found in X.Org Server before xorg-x11-server 1.20.9. An Integer underflow leading to heap-
buffer overflow may lead to a privilege escalation vulnerability. The highest threat from this
vulnerability is to data confidentiality and integrity as well as system availability. (CVE-2020-14361,
CVE-2020-14362)
- A flaw was found in the X.Org Server before version 1.20.10. An out-of-bounds access in the XkbSetMap
function may lead to a privilege escalation vulnerability. The highest threat from this vulnerability is
to data confidentiality and integrity as well as system availability. (CVE-2020-14360)
- A flaw was found in xorg-x11-server before 1.20.10. A heap-buffer overflow in XkbSetDeviceInfo may lead to
a privilege escalation vulnerability. The highest threat from this vulnerability is to data
confidentiality and integrity as well as system availability. (CVE-2020-25712)
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-2021-0013");
script_set_attribute(attribute:"solution", value:
"Upgrade the vulnerable CGSL xorg-x11-server 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:L/Au:N/C:P/I:P/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: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-2020-14360");
script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2020-25712");
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:"2020/08/05");
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) 2021-2024 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': [
'xorg-x11-server-Xdmx-1.20.4-15.el7_9',
'xorg-x11-server-Xephyr-1.20.4-15.el7_9',
'xorg-x11-server-Xnest-1.20.4-15.el7_9',
'xorg-x11-server-Xorg-1.20.4-15.el7_9',
'xorg-x11-server-Xvfb-1.20.4-15.el7_9',
'xorg-x11-server-Xwayland-1.20.4-15.el7_9',
'xorg-x11-server-common-1.20.4-15.el7_9',
'xorg-x11-server-debuginfo-1.20.4-15.el7_9',
'xorg-x11-server-devel-1.20.4-15.el7_9',
'xorg-x11-server-source-1.20.4-15.el7_9'
],
'CGSL MAIN 5.04': [
'xorg-x11-server-Xdmx-1.20.4-15.el7_9',
'xorg-x11-server-Xephyr-1.20.4-15.el7_9',
'xorg-x11-server-Xnest-1.20.4-15.el7_9',
'xorg-x11-server-Xorg-1.20.4-15.el7_9',
'xorg-x11-server-Xvfb-1.20.4-15.el7_9',
'xorg-x11-server-Xwayland-1.20.4-15.el7_9',
'xorg-x11-server-common-1.20.4-15.el7_9',
'xorg-x11-server-debuginfo-1.20.4-15.el7_9',
'xorg-x11-server-devel-1.20.4-15.el7_9',
'xorg-x11-server-source-1.20.4-15.el7_9'
]
};
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, 'xorg-x11-server');
}
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-14345
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-14346
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-14347
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-14360
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-14361
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-14362
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-25712
security.gd-linux.com/notice/NS-SA-2021-0013
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:P/I:P/A:C
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
33.4%