According to the versions of the xorg-x11-server packages installed, the EulerOS Virtualization for ARM 64 installation on the remote host is affected by the following vulnerabilities :
An incorrect permission check for -modulepath and
-logfile options when starting Xorg X server allows unprivileged users with the ability to log in to the system via physical console to escalate their privileges and run arbitrary code under root privileges.(CVE-2018-14665)
systemd 242 changes the VT1 mode upon a logout, which allows attackers to read cleartext passwords in certain circumstances, such as watching a shutdown, or using Ctrl-Alt-F1 and Ctrl-Alt-F2. This occurs because the KDGKBMODE (aka current keyboard mode) check is mishandled.(CVE-2018-20839)(CVE-2019-1547)
Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(132816);
script_version("1.5");
script_set_attribute(attribute:"plugin_modification_date", value:"2022/05/18");
script_cve_id("CVE-2018-14665", "CVE-2018-20839");
script_name(english:"EulerOS Virtualization for ARM 64 3.0.5.0 : xorg-x11-server (EulerOS-SA-2020-1062)");
script_set_attribute(attribute:"synopsis", value:
"The remote EulerOS Virtualization for ARM 64 host is missing multiple security
updates.");
script_set_attribute(attribute:"description", value:
"According to the versions of the xorg-x11-server packages installed,
the EulerOS Virtualization for ARM 64 installation on the remote host
is affected by the following vulnerabilities :
- An incorrect permission check for -modulepath and
-logfile options when starting Xorg X server allows
unprivileged users with the ability to log in to the
system via physical console to escalate their
privileges and run arbitrary code under root
privileges.(CVE-2018-14665)
- systemd 242 changes the VT1 mode upon a logout, which
allows attackers to read cleartext passwords in certain
circumstances, such as watching a shutdown, or using
Ctrl-Alt-F1 and Ctrl-Alt-F2. This occurs because the
KDGKBMODE (aka current keyboard mode) check is
mishandled.(CVE-2018-20839)(CVE-2019-1547)
Note that Tenable Network Security has extracted the preceding
description block directly from the EulerOS security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.");
# https://developer.huaweicloud.com/ict/en/site-euleros/euleros/security-advisories/EulerOS-SA-2020-1062
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?1ac7ca3f");
script_set_attribute(attribute:"solution", value:
"Update the affected xorg-x11-server packages.");
script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C");
script_set_cvss_temporal_vector("CVSS2#E:F/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:F/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2018-14665");
script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2018-20839");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"metasploit_name", value:'Xorg X11 Server SUID modulepath Privilege Escalation');
script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");
script_set_attribute(attribute:"patch_publication_date", value:"2020/01/13");
script_set_attribute(attribute:"plugin_publication_date", value:"2020/01/13");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:xorg-x11-server-Xorg");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:xorg-x11-server-common");
script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:uvp:3.0.5.0");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Huawei Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2020-2022 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/EulerOS/release", "Host/EulerOS/rpm-list", "Host/EulerOS/uvp_version");
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/EulerOS/release");
if (isnull(release) || release !~ "^EulerOS") audit(AUDIT_OS_NOT, "EulerOS");
uvp = get_kb_item("Host/EulerOS/uvp_version");
if (uvp != "3.0.5.0") audit(AUDIT_OS_NOT, "EulerOS Virtualization 3.0.5.0");
if (!get_kb_item("Host/EulerOS/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$" && "aarch64" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "EulerOS", cpu);
if ("aarch64" >!< cpu) audit(AUDIT_ARCH_NOT, "aarch64", cpu);
flag = 0;
pkgs = ["xorg-x11-server-Xorg-1.20.1-4.h4.eulerosv2r8",
"xorg-x11-server-common-1.20.1-4.h4.eulerosv2r8"];
foreach (pkg in pkgs)
if (rpm_check(release:"EulerOS-2.0", reference:pkg)) flag++;
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_HOLE,
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");
}
Vendor | Product | Version | CPE |
---|---|---|---|
huawei | euleros | xorg-x11-server-xorg | p-cpe:/a:huawei:euleros:xorg-x11-server-xorg |
huawei | euleros | xorg-x11-server-common | p-cpe:/a:huawei:euleros:xorg-x11-server-common |
huawei | euleros | uvp | cpe:/o:huawei:euleros:uvp:3.0.5.0 |