Linux Distros Unpatched Vulnerability : CVE-2013-6456

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##

include('compat.inc');

if (description)
{
  script_id(218064);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2025/09/03");

  script_cve_id("CVE-2013-6456");

  script_name(english:"Linux Distros Unpatched Vulnerability : CVE-2013-6456");

  script_set_attribute(attribute:"synopsis", value:
"The Linux/Unix host has one or more packages installed with a vulnerability that the vendor indicates will not be
patched.");
  script_set_attribute(attribute:"description", value:
"The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied
patch available.

  - The LXC driver (lxc/lxc_driver.c) in libvirt 1.0.1 through 1.2.1 allows local users to (1) delete
    arbitrary host devices via the virDomainDeviceDettach API and a symlink attack on /dev in the container;
    (2) create arbitrary nodes (mknod) via the virDomainDeviceAttach API and a symlink attack on /dev in the
    container; and cause a denial of service (shutdown or reboot host OS) via the (3) virDomainShutdown or (4)
    virDomainReboot API and a symlink attack on /dev/initctl in the container, related to paths under
    /proc/$PID/root and the virInitctlSetRunLevel function. (CVE-2013-6456)

Note that Nessus relies on the presence of the package as reported by the vendor.");
  script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/security/cve/cve-2013-6456");
  script_set_attribute(attribute:"solution", value:
"There is no known solution at this time.");
  script_set_attribute(attribute:"agent", value:"unix");
  script_set_cvss_base_vector("CVSS2#AV:A/AC:M/Au:S/C:N/I:P/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2013-6456");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2013/12/17");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/03/04");

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

  script_category(ACT_GATHER_INFO);
  script_family(english:"Misc.");

  script_copyright(english:"This script is Copyright (C) 2025 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("set_linux_os_id.nasl", "ssh_get_info2.nasl");
  script_require_keys("Host/OS/identifier", "Host/cpu", "Host/local_checks_enabled", "global_settings/vendor_unpatched");
  script_require_ports("Host/OS/CentOS Linux-7", "Host/OS/Red Hat Enterprise Linux-7");

  exit(0);
}

if (!get_kb_item("global_settings/vendor_unpatched")) exit(0, "Unpatched Vulnerabilities Detection not active.");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (empty_or_null(get_one_kb_item("Host/CentOS/rpm-list")) && empty_or_null(get_one_kb_item("Host/RedHat/rpm-list"))) audit(AUDIT_PACKAGE_LIST_MISSING);

include('linux_unpatched.inc');

var distro_constraints_array = {
  "CentOS Linux-7": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "7",
        "pkgs": [
          {"reference": "libvirt"},
          {"reference": "libvirt-admin"},
          {"reference": "libvirt-bash-completion"},
          {"reference": "libvirt-client"},
          {"reference": "libvirt-daemon"},
          {"reference": "libvirt-daemon-config-network"},
          {"reference": "libvirt-daemon-config-nwfilter"},
          {"reference": "libvirt-daemon-driver-interface"},
          {"reference": "libvirt-daemon-driver-lxc"},
          {"reference": "libvirt-daemon-driver-network"},
          {"reference": "libvirt-daemon-driver-nodedev"},
          {"reference": "libvirt-daemon-driver-nwfilter"},
          {"reference": "libvirt-daemon-driver-qemu"},
          {"reference": "libvirt-daemon-driver-secret"},
          {"reference": "libvirt-daemon-driver-storage"},
          {"reference": "libvirt-daemon-driver-storage-core"},
          {"reference": "libvirt-daemon-driver-storage-disk"},
          {"reference": "libvirt-daemon-driver-storage-gluster"},
          {"reference": "libvirt-daemon-driver-storage-iscsi"},
          {"reference": "libvirt-daemon-driver-storage-logical"},
          {"reference": "libvirt-daemon-driver-storage-mpath"},
          {"reference": "libvirt-daemon-driver-storage-rbd"},
          {"reference": "libvirt-daemon-driver-storage-scsi"},
          {"reference": "libvirt-daemon-kvm"},
          {"reference": "libvirt-daemon-lxc"},
          {"reference": "libvirt-devel"},
          {"reference": "libvirt-docs"},
          {"reference": "libvirt-libs"},
          {"reference": "libvirt-lock-sanlock"},
          {"reference": "libvirt-login-shell"},
          {"reference": "libvirt-nss"},
          {"reference": "libvirt-python"}
        ]
      }
    ]
  },
  "Red Hat Enterprise Linux-7": {
    "package_manager": "rpm-list",
    "constraints": [
      {
        "release": "7",
        "pkgs": [
          {"reference": "libvirt"},
          {"reference": "libvirt-admin"},
          {"reference": "libvirt-bash-completion"},
          {"reference": "libvirt-client"},
          {"reference": "libvirt-daemon"},
          {"reference": "libvirt-daemon-config-network"},
          {"reference": "libvirt-daemon-config-nwfilter"},
          {"reference": "libvirt-daemon-driver-interface"},
          {"reference": "libvirt-daemon-driver-lxc"},
          {"reference": "libvirt-daemon-driver-network"},
          {"reference": "libvirt-daemon-driver-nodedev"},
          {"reference": "libvirt-daemon-driver-nwfilter"},
          {"reference": "libvirt-daemon-driver-qemu"},
          {"reference": "libvirt-daemon-driver-secret"},
          {"reference": "libvirt-daemon-driver-storage"},
          {"reference": "libvirt-daemon-driver-storage-core"},
          {"reference": "libvirt-daemon-driver-storage-disk"},
          {"reference": "libvirt-daemon-driver-storage-gluster"},
          {"reference": "libvirt-daemon-driver-storage-iscsi"},
          {"reference": "libvirt-daemon-driver-storage-logical"},
          {"reference": "libvirt-daemon-driver-storage-mpath"},
          {"reference": "libvirt-daemon-driver-storage-rbd"},
          {"reference": "libvirt-daemon-driver-storage-scsi"},
          {"reference": "libvirt-daemon-kvm"},
          {"reference": "libvirt-daemon-lxc"},
          {"reference": "libvirt-devel"},
          {"reference": "libvirt-docs"},
          {"reference": "libvirt-libs"},
          {"reference": "libvirt-lock-sanlock"},
          {"reference": "libvirt-login-shell"},
          {"reference": "libvirt-nss"},
          {"reference": "libvirt-python"}
        ]
      }
    ]
  }
};

var distro_constraints_values = linux_unpatched::get_distro_constraints(distro_constraints_arr:distro_constraints_array);
if (empty_or_null(distro_constraints_values)) audit(AUDIT_HOST_NOT, 'affected');
var report = linux_unpatched::check_unpatched_constraints(distro_constraints_values:distro_constraints_values);

if (!empty_or_null(report))
{
  security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      extra      : report
  );
  exit(0);
}
else
{
  audit(AUDIT_HOST_NOT, 'affected');
}