CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
23.4%
According to the versions of the systemd packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :
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.
##
# (C) Tenable, Inc.
##
include('compat.inc');
if (description)
{
script_id(163162);
script_version("1.4");
script_set_attribute(attribute:"plugin_modification_date", value:"2023/10/18");
script_cve_id("CVE-2021-3997");
script_name(english:"EulerOS Virtualization 2.10.1 : systemd (EulerOS-SA-2022-2067)");
script_set_attribute(attribute:"synopsis", value:
"The remote EulerOS Virtualization host is missing a security update.");
script_set_attribute(attribute:"description", value:
"According to the versions of the systemd packages installed, the EulerOS Virtualization installation on the remote host
is affected by the following vulnerabilities :
- A flaw was found in systemd. An uncontrolled recursion in systemd-tmpfiles may lead to a denial of service
at boot time when too many nested directories are created in /tmp. (CVE-2021-3997)
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-2022-2067
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?4f5875fa");
script_set_attribute(attribute:"solution", value:
"Update the affected systemd packages.");
script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:S/C:N/I:N/A:C");
script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2021-3997");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"vuln_publication_date", value:"2022/05/05");
script_set_attribute(attribute:"patch_publication_date", value:"2022/07/14");
script_set_attribute(attribute:"plugin_publication_date", value:"2022/07/14");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:systemd");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:systemd-container");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:systemd-libs");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:systemd-networkd");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:systemd-nspawn");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:systemd-pam");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:systemd-resolved");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:systemd-timesyncd");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:systemd-udev");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:systemd-udev-compat");
script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:uvp:2.10.1");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Huawei Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2022-2023 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("rpm.inc");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var release = get_kb_item("Host/EulerOS/release");
if (isnull(release) || release !~ "^EulerOS") audit(AUDIT_OS_NOT, "EulerOS");
var uvp = get_kb_item("Host/EulerOS/uvp_version");
if (uvp != "2.10.1") audit(AUDIT_OS_NOT, "EulerOS Virtualization 2.10.1");
if (!get_kb_item("Host/EulerOS/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$" && "aarch64" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "EulerOS", cpu);
if ("aarch64" >!< cpu) audit(AUDIT_ARCH_NOT, "aarch64", cpu);
var flag = 0;
var pkgs = [
"systemd-243-31.h55.eulerosv2r10",
"systemd-container-243-31.h55.eulerosv2r10",
"systemd-libs-243-31.h55.eulerosv2r10",
"systemd-networkd-243-31.h55.eulerosv2r10",
"systemd-nspawn-243-31.h55.eulerosv2r10",
"systemd-pam-243-31.h55.eulerosv2r10",
"systemd-resolved-243-31.h55.eulerosv2r10",
"systemd-timesyncd-243-31.h55.eulerosv2r10",
"systemd-udev-243-31.h55.eulerosv2r10",
"systemd-udev-compat-243-31.h55.eulerosv2r10"
];
foreach (var pkg in pkgs)
if (rpm_check(release:"EulerOS-2.0", 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, "systemd");
}