CentOS 7 : libvirt (CESA-2019:1579)

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Red Hat Security Advisory RHSA-2019:1579 and 
# CentOS Errata and Security Advisory 2019:1579 respectively.
#

include('compat.inc');

if (description)
{
  script_id(126076);
  script_version("1.6");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/05/15");

  script_cve_id(
    "CVE-2019-10161",
    "CVE-2019-10166",
    "CVE-2019-10167",
    "CVE-2019-10168"
  );
  script_xref(name:"RHSA", value:"2019:1579");

  script_name(english:"CentOS 7 : libvirt (CESA-2019:1579)");

  script_set_attribute(attribute:"synopsis", value:
"The remote CentOS host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"An update for libvirt is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security
impact of Important. A Common Vulnerability Scoring System (CVSS) base
score, which gives a detailed severity rating, is available for each
vulnerability from the CVE link(s) in the References section.

The libvirt library contains a C API for managing and interacting with
the virtualization capabilities of Linux and other operating systems.
In addition, libvirt provides tools for remote management of
virtualized systems.

Security Fix(es) :

* libvirt: arbitrary file read/exec via virDomainSaveImageGetXMLDesc
API (CVE-2019-10161)

* libvirt: virDomainManagedSaveDefineXML API exposed to readonly
clients (CVE-2019-10166)

* libvirt: arbitrary command execution via
virConnectGetDomainCapabilities API (CVE-2019-10167)

* libvirt: arbitrary command execution via
virConnectBaselineHypervisorCPU and virConnectCompareHypervisorCPU
APIs (CVE-2019-10168)

For more details about the security issue(s), including the impact, a
CVSS score, acknowledgments, and other related information, refer to
the CVE page(s) listed in the References section.

Bug Fix(es) :

* Live migration fail with unsafe error when GPFS is used as shared
filesystem (BZ#1715867)");
  # https://lists.centos.org/pipermail/centos-announce/2019-June/023336.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?8343cb31");
  script_set_attribute(attribute:"solution", value:
"Update the affected libvirt 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: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-2019-10161");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2019-10168");

  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:"2019/07/30");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/06/20");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/06/21");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:libvirt");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:libvirt-admin");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:libvirt-bash-completion");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:libvirt-client");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:libvirt-daemon");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:libvirt-daemon-config-network");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:libvirt-daemon-config-nwfilter");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:libvirt-daemon-driver-interface");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:libvirt-daemon-driver-lxc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:libvirt-daemon-driver-network");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:libvirt-daemon-driver-nodedev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:libvirt-daemon-driver-nwfilter");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:libvirt-daemon-driver-qemu");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:libvirt-daemon-driver-secret");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:libvirt-daemon-driver-storage");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:libvirt-daemon-driver-storage-core");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:libvirt-daemon-driver-storage-disk");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:libvirt-daemon-driver-storage-gluster");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:libvirt-daemon-driver-storage-iscsi");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:libvirt-daemon-driver-storage-logical");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:libvirt-daemon-driver-storage-mpath");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:libvirt-daemon-driver-storage-rbd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:libvirt-daemon-driver-storage-scsi");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:libvirt-daemon-kvm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:libvirt-daemon-lxc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:libvirt-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:libvirt-docs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:libvirt-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:libvirt-lock-sanlock");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:libvirt-login-shell");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:libvirt-nss");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:centos:centos:7");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"CentOS Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2019-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/CentOS/release", "Host/CentOS/rpm-list");

  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/CentOS/release");
if (isnull(release) || "CentOS" >!< release) audit(AUDIT_OS_NOT, "CentOS");
os_ver = pregmatch(pattern: "CentOS(?: Linux)? release ([0-9]+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "CentOS");
os_ver = os_ver[1];
if (! preg(pattern:"^7([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "CentOS 7.x", "CentOS " + os_ver);

if (!get_kb_item("Host/CentOS/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, "CentOS", cpu);


flag = 0;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"libvirt-4.5.0-10.el7_6.12")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"libvirt-admin-4.5.0-10.el7_6.12")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"libvirt-bash-completion-4.5.0-10.el7_6.12")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"libvirt-client-4.5.0-10.el7_6.12")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"libvirt-daemon-4.5.0-10.el7_6.12")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"libvirt-daemon-config-network-4.5.0-10.el7_6.12")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"libvirt-daemon-config-nwfilter-4.5.0-10.el7_6.12")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"libvirt-daemon-driver-interface-4.5.0-10.el7_6.12")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"libvirt-daemon-driver-lxc-4.5.0-10.el7_6.12")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"libvirt-daemon-driver-network-4.5.0-10.el7_6.12")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"libvirt-daemon-driver-nodedev-4.5.0-10.el7_6.12")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"libvirt-daemon-driver-nwfilter-4.5.0-10.el7_6.12")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"libvirt-daemon-driver-qemu-4.5.0-10.el7_6.12")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"libvirt-daemon-driver-secret-4.5.0-10.el7_6.12")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"libvirt-daemon-driver-storage-4.5.0-10.el7_6.12")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"libvirt-daemon-driver-storage-core-4.5.0-10.el7_6.12")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"libvirt-daemon-driver-storage-disk-4.5.0-10.el7_6.12")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"libvirt-daemon-driver-storage-gluster-4.5.0-10.el7_6.12")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"libvirt-daemon-driver-storage-iscsi-4.5.0-10.el7_6.12")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"libvirt-daemon-driver-storage-logical-4.5.0-10.el7_6.12")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"libvirt-daemon-driver-storage-mpath-4.5.0-10.el7_6.12")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"libvirt-daemon-driver-storage-rbd-4.5.0-10.el7_6.12")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"libvirt-daemon-driver-storage-scsi-4.5.0-10.el7_6.12")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"libvirt-daemon-kvm-4.5.0-10.el7_6.12")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"libvirt-daemon-lxc-4.5.0-10.el7_6.12")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"libvirt-devel-4.5.0-10.el7_6.12")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"libvirt-docs-4.5.0-10.el7_6.12")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"libvirt-libs-4.5.0-10.el7_6.12")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"libvirt-lock-sanlock-4.5.0-10.el7_6.12")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"libvirt-login-shell-4.5.0-10.el7_6.12")) flag++;
if (rpm_check(release:"CentOS-7", cpu:"x86_64", reference:"libvirt-nss-4.5.0-10.el7_6.12")) 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 / libvirt-admin / libvirt-bash-completion / libvirt-client / etc");
}