Junos flowd Buffer Overflow Vulnerability

2013-11-22T00:00:00
ID OPENVAS:1361412562310103954
Type openvas
Reporter This script is Copyright (C) 2013 Greenbone Networks GmbH
Modified 2018-10-25T00:00:00

Description

A buffer overflow in the flow daemon when using telnet pass-through authentication might lead to a complete compromise of the system.

                                        
                                            ###############################################################################
# OpenVAS Vulnerability Test
# $Id: gb_junos_cve_2013_6013.nasl 12095 2018-10-25 12:00:24Z cfischer $
#
# Junos flowd Buffer Overflow Vulnerability
#
# Authors:
# Christian Kuersteiner <christian.kuersteiner@greenbone.net>
#
# Copyright:
# Copyright (c) 2013 Greenbone Networks GmbH
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
###############################################################################

if (description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.103954");
  script_version("$Revision: 12095 $");
  script_tag(name:"last_modification", value:"$Date: 2018-10-25 14:00:24 +0200 (Thu, 25 Oct 2018) $");
  script_tag(name:"creation_date", value:"2013-11-22 23:25:39 +0700 (Fri, 22 Nov 2013)");
  script_tag(name:"cvss_base", value:"6.8");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:P/I:P/A:P");

  script_tag(name:"qod_type", value:"package");

  script_tag(name:"solution_type", value:"VendorFix");

  script_cve_id("CVE-2013-6013");
  script_bugtraq_id(62962);

  script_name("Junos flowd Buffer Overflow Vulnerability");


  script_category(ACT_GATHER_INFO);

  script_copyright("This script is Copyright (C) 2013 Greenbone Networks GmbH");
  script_family("JunOS Local Security Checks");
  script_dependencies("gb_ssh_junos_get_version.nasl", "gb_junos_snmp_version.nasl");
  script_mandatory_keys("Junos/Build", "Junos/Version");

  script_tag(name:"summary", value:"A buffer overflow in the flow daemon when using telnet
pass-through authentication might lead to a complete compromise of the system.");

  script_tag(name:"vuldetect", value:"Checks if a vulnerable OS build is present on the target host.");

  script_tag(name:"insight", value:"Buffer overflow in the flow daemon (flowd) when using telnet
pass-through authentication on the firewall.");

  script_tag(name:"affected", value:"Platforms running Junos OS 10.4, 11.4, or 12.1X44.");

  script_tag(name:"solution", value:"New builds of Junos OS software are available from Juniper. As
a workaround disable telnet pass-through authentication if not required.");

  script_xref(name:"URL", value:"http://kb.juniper.net/JSA10594");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/62962");

  exit(0);
}

include("revisions-lib.inc");

version = get_kb_item("Junos/Version");
if (!version)
  exit(0);

build = get_kb_item("Junos/Build");
if (!build)
  exit(0);

desc += "Version/Build-Date:
" + version + " / " + build;

build2check = str_replace(string:build, find:"-", replace:"");

if (revcomp(a:build2check, b:"20130711") >= 0) {
  exit(99);
}

if (revcomp(a:version, b:"10.4S14") < 0) {
  security_message(port:0, data:desc);
  exit(0);
}

if (version =~ "^11") {
  if (revcomp(a:version, b:"11.4R7-S2") < 0) {
    security_message(port:0, data:desc);
    exit(0);
  }
}

if (version =~ "^12") {
  if ((revcomp(a:version, b:"12.1X44-D15") < 0) &&
      (revcomp(a:version, b:"12.1X44") >= 0)) {
    security_message(port:0, data:desc);
    exit(0);
  } else if ((revcomp(a:version, b:"12.1X45-D10") < 0) &&
             (revcomp(a:version, b:"12.1X45") >= 0)) {
      security_message(port:0, data:desc);
      exit(0);
  }
}

exit(99);