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nessusThis script is Copyright (C) 2021-2024 and is owned by Tenable, Inc. or an Affiliate thereof.EULEROS_SA-2021-1045.NASL
HistoryJan 05, 2021 - 12:00 a.m.

EulerOS Virtualization for ARM 64 3.0.2.0 : libvirt (EulerOS-SA-2021-1045)

2021-01-0500:00:00
This script is Copyright (C) 2021-2024 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
16

6.9 Medium

AI Score

Confidence

High

According to the version of the libvirt packages installed, the EulerOS Virtualization for ARM 64 installation on the remote host is affected by the following vulnerability :

  • A double free memory issue was found to occur in the libvirt API, in versions before 6.8.0, responsible for requesting information about network interfaces of a running QEMU domain. This flaw affects the polkit access control driver. Specifically, clients connecting to the read-write socket with limited ACL permissions could use this flaw to crash the libvirt daemon, resulting in a denial of service, or potentially escalate their privileges on the system. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.(CVE-2020-25637)

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(144728);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/01/31");

  script_cve_id("CVE-2020-25637");

  script_name(english:"EulerOS Virtualization for ARM 64 3.0.2.0 : libvirt (EulerOS-SA-2021-1045)");

  script_set_attribute(attribute:"synopsis", value:
"The remote EulerOS Virtualization for ARM 64 host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"According to the version of the libvirt packages installed, the
EulerOS Virtualization for ARM 64 installation on the remote host is
affected by the following vulnerability :

  - A double free memory issue was found to occur in the
    libvirt API, in versions before 6.8.0, responsible for
    requesting information about network interfaces of a
    running QEMU domain. This flaw affects the polkit
    access control driver. Specifically, clients connecting
    to the read-write socket with limited ACL permissions
    could use this flaw to crash the libvirt daemon,
    resulting in a denial of service, or potentially
    escalate their privileges on the system. The highest
    threat from this vulnerability is to data
    confidentiality and integrity as well as system
    availability.(CVE-2020-25637)

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-2021-1045
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?b7116a79");
  script_set_attribute(attribute:"solution", value:
"Update the affected libvirt package.");
  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:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:H/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-2020-25637");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"patch_publication_date", value:"2021/01/05");
  script_set_attribute(attribute:"plugin_publication_date", value:"2021/01/05");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:libvirt");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:libvirt-admin");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:libvirt-client");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:libvirt-daemon");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:libvirt-daemon-config-network");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:libvirt-daemon-config-nwfilter");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:libvirt-daemon-driver-interface");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:libvirt-daemon-driver-network");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:libvirt-daemon-driver-nodedev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:libvirt-daemon-driver-nwfilter");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:libvirt-daemon-driver-qemu");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:libvirt-daemon-driver-secret");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:libvirt-daemon-driver-storage");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:libvirt-daemon-driver-storage-core");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:libvirt-daemon-driver-storage-disk");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:libvirt-daemon-driver-storage-iscsi");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:libvirt-daemon-driver-storage-logical");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:libvirt-daemon-driver-storage-mpath");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:libvirt-daemon-driver-storage-scsi");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:libvirt-daemon-kvm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:libvirt-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:libvirt-docs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:libvirt-libs");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:uvp:3.0.2.0");
  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) 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/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 != "3.0.2.0") audit(AUDIT_OS_NOT, "EulerOS Virtualization 3.0.2.0");
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 = ["libvirt-3.2.0-286",
        "libvirt-3.2.0-286.src",
        "libvirt-admin-3.2.0-286",
        "libvirt-client-3.2.0-286",
        "libvirt-daemon-3.2.0-286",
        "libvirt-daemon-config-network-3.2.0-286",
        "libvirt-daemon-config-nwfilter-3.2.0-286",
        "libvirt-daemon-driver-interface-3.2.0-286",
        "libvirt-daemon-driver-network-3.2.0-286",
        "libvirt-daemon-driver-nodedev-3.2.0-286",
        "libvirt-daemon-driver-nwfilter-3.2.0-286",
        "libvirt-daemon-driver-qemu-3.2.0-286",
        "libvirt-daemon-driver-secret-3.2.0-286",
        "libvirt-daemon-driver-storage-3.2.0-286",
        "libvirt-daemon-driver-storage-core-3.2.0-286",
        "libvirt-daemon-driver-storage-disk-3.2.0-286",
        "libvirt-daemon-driver-storage-iscsi-3.2.0-286",
        "libvirt-daemon-driver-storage-logical-3.2.0-286",
        "libvirt-daemon-driver-storage-mpath-3.2.0-286",
        "libvirt-daemon-driver-storage-scsi-3.2.0-286",
        "libvirt-daemon-kvm-3.2.0-286",
        "libvirt-devel-3.2.0-286",
        "libvirt-docs-3.2.0-286",
        "libvirt-libs-3.2.0-286"];

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, "libvirt");
}