According to the versions of the kernel packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :
A flaw null pointer dereference in the Linux kernel cgroupv2 subsystem in versions before 5.7.10 was found in the way when reboot the system. A local user could use this flaw to crash the system or escalate their privileges on the system.(CVE-2020-14356)
The Linux kernel through 5.7.11 allows remote attackers to make observations that help to obtain sensitive information about the internal state of the network RNG, aka CID-f227e3ec3b5c. This is related to drivers/char/random.c and kernel/time/timer.c.(CVE-2020-16166)
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(139962);
script_version("1.5");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/02/23");
script_cve_id("CVE-2020-14356", "CVE-2020-16166");
script_name(english:"EulerOS 2.0 SP8 : kernel (EulerOS-SA-2020-1859)");
script_set_attribute(attribute:"synopsis", value:
"The remote EulerOS host is missing multiple security updates.");
script_set_attribute(attribute:"description", value:
"According to the versions of the kernel packages installed, the
EulerOS installation on the remote host is affected by the following
vulnerabilities :
- A flaw null pointer dereference in the Linux kernel
cgroupv2 subsystem in versions before 5.7.10 was found
in the way when reboot the system. A local user could
use this flaw to crash the system or escalate their
privileges on the system.(CVE-2020-14356)
- The Linux kernel through 5.7.11 allows remote attackers
to make observations that help to obtain sensitive
information about the internal state of the network
RNG, aka CID-f227e3ec3b5c. This is related to
drivers/char/random.c and
kernel/time/timer.c.(CVE-2020-16166)
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-2020-1859
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?99aaf736");
script_set_attribute(attribute:"solution", value:
"Update the affected kernel 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:POC/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:P/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-14356");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"patch_publication_date", value:"2020/08/28");
script_set_attribute(attribute:"plugin_publication_date", value:"2020/08/28");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:bpftool");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:kernel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:kernel-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:kernel-headers");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:kernel-source");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:kernel-tools");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:kernel-tools-libs");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:perf");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:python-perf");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:python3-perf");
script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:2.0");
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) 2020-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/EulerOS/release", "Host/EulerOS/rpm-list", "Host/EulerOS/sp");
script_exclude_keys("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");
if (release !~ "^EulerOS release 2\.0(\D|$)") audit(AUDIT_OS_NOT, "EulerOS 2.0");
sp = get_kb_item("Host/EulerOS/sp");
if (isnull(sp) || sp !~ "^(8)$") audit(AUDIT_OS_NOT, "EulerOS 2.0 SP8");
uvp = get_kb_item("Host/EulerOS/uvp_version");
if (!empty_or_null(uvp)) audit(AUDIT_OS_NOT, "EulerOS 2.0 SP8", "EulerOS UVP " + uvp);
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 = ["bpftool-4.19.36-vhulk1907.1.0.h821.eulerosv2r8",
"kernel-4.19.36-vhulk1907.1.0.h821.eulerosv2r8",
"kernel-devel-4.19.36-vhulk1907.1.0.h821.eulerosv2r8",
"kernel-headers-4.19.36-vhulk1907.1.0.h821.eulerosv2r8",
"kernel-source-4.19.36-vhulk1907.1.0.h821.eulerosv2r8",
"kernel-tools-4.19.36-vhulk1907.1.0.h821.eulerosv2r8",
"kernel-tools-libs-4.19.36-vhulk1907.1.0.h821.eulerosv2r8",
"perf-4.19.36-vhulk1907.1.0.h821.eulerosv2r8",
"python-perf-4.19.36-vhulk1907.1.0.h821.eulerosv2r8",
"python3-perf-4.19.36-vhulk1907.1.0.h821.eulerosv2r8"];
foreach (pkg in pkgs)
if (rpm_check(release:"EulerOS-2.0", sp:"8", 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, "kernel");
}
Vendor | Product | Version | CPE |
---|---|---|---|
huawei | euleros | kernel-tools-libs | p-cpe:/a:huawei:euleros:kernel-tools-libs |
huawei | euleros | kernel-devel | p-cpe:/a:huawei:euleros:kernel-devel |
huawei | euleros | python-perf | p-cpe:/a:huawei:euleros:python-perf |
huawei | euleros | kernel-tools | p-cpe:/a:huawei:euleros:kernel-tools |
huawei | euleros | bpftool | p-cpe:/a:huawei:euleros:bpftool |
huawei | euleros | kernel-source | p-cpe:/a:huawei:euleros:kernel-source |
huawei | euleros | kernel-headers | p-cpe:/a:huawei:euleros:kernel-headers |
huawei | euleros | perf | p-cpe:/a:huawei:euleros:perf |
huawei | euleros | python3-perf | p-cpe:/a:huawei:euleros:python3-perf |
huawei | euleros | kernel | p-cpe:/a:huawei:euleros:kernel |