StrongSwan/Openswan Denial Of Service Vulnerability June-09

###############################################################################
# OpenVAS Vulnerability Test
# $Id: secpod_strongswan_n_openswan_dos_vuln_jun09.nasl 6515 2017-07-04 11:54:15Z cfischer $
#
# StrongSwan/Openswan Denial Of Service Vulnerability June-09
#
# Authors:
# Sharath S <[email protected]>
#
# Copyright:
# Copyright (c) 2009 SecPod, http://www.secpod.com
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2
# (or any later version), as published by the Free Software Foundation.
#
# 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.
###############################################################################

tag_impact = "Successful exploitation will allow attacker to cause pluto IKE daemon crash.
  Impact Level: Application";
tag_affected = "OpenSwan version 2.6 before 2.6.22 and 2.4 before 2.4.15
  strongSwan version 2.8 before 2.8.10, 4.2 before 4.2.16, and 4.3 before 4.3.2";
tag_insight = "- Error in 'ASN.1' parser in pluto/asn1.c, libstrongswan/asn1/asn1.c, and
    libstrongswan/asn1/asn1_parser.c is caused via an 'X.509' certificate
    with crafted Relative Distinguished Names (RDNs), a crafted UTCTIME string,
    or a crafted GENERALIZEDTIME string.";
tag_solution = "Upgrade to OpenSwan version 2.6.22 or 2.4.15
  http://www.openswan.org/code
  Upgrade to strongSwan version 2.8.10 or 4.2.16 or 4.3.2
  http://www.strongswan.org/";
tag_summary = "The host is installed with strongSwan/Openswan and is prone to Denial of
  Service vulnerability.";

if(description)
{
  script_id(900386);
  script_version("$Revision: 6515 $");
  script_tag(name:"last_modification", value:"$Date: 2017-07-04 13:54:15 +0200 (Tue, 04 Jul 2017) $");
  script_tag(name:"creation_date", value:"2009-06-30 16:55:49 +0200 (Tue, 30 Jun 2009)");
  script_tag(name:"cvss_base", value:"5.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:N/I:N/A:P");
  script_cve_id("CVE-2009-2185");
  script_bugtraq_id(35452);
  script_name("StrongSwan/Openswan Denial Of Service Vulnerability June-09");
  script_xref(name : "URL" , value : "http://secunia.com/advisories/35522");
  script_xref(name : "URL" , value : "http://www.vupen.com/english/advisories/2009/1639");

  script_tag(name:"qod_type", value:"remote_banner");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2009 SecPod");
  script_family("Denial of Service");
  script_dependencies("secpod_openswan_detect.nasl", "gb_strongswan_detect.nasl");
  script_mandatory_keys("Openswan_or_StrongSwan/Lin/Installed");
  script_tag(name : "impact" , value : tag_impact);
  script_tag(name : "affected" , value : tag_affected);
  script_tag(name : "insight" , value : tag_insight);
  script_tag(name : "solution" , value : tag_solution);
  script_tag(name : "summary" , value : tag_summary);
  exit(0);
}

include("version_func.inc");

oswanVer = get_kb_item("Openswan/Ver");
if(oswanVer != NULL)
{
  # Grep for OpenSwan version prior to 2.6 < 2.6.22 and 2.4 < 2.4.15
  if(version_in_range(version:oswanVer, test_version:"2.6", test_version2:"2.6.21")||
     version_in_range(version:oswanVer, test_version:"2.4", test_version2:"2.4.14")){
    security_message(port:500, proto:"udp");
  }
}

sswanVer = get_kb_item("StrongSwan/Ver");
if(sswanVer != NULL)
{
  # Grep for strongSwan version prior to 2.8 < 2.8.10, 4.2 < 4.2.16, and 4.3 < 4.3.2
  if(version_in_range(version:sswanVer, test_version:"2.8", test_version2:"2.8.9") ||
     version_in_range(version:sswanVer, test_version:"4.2", test_version2:"4.2.15")||
     version_in_range(version:sswanVer, test_version:"4.3", test_version2:"4.3.1")){
    security_message(port:500, proto:"udp");
  }
}