IBM Tivoli Directory Server DIGEST-MD5 Denial of Service Vulnerability

###############################################################################
# OpenVAS Vulnerability Test
# $Id: gb_ibm_tivoli_dir_server_digest_md5_dos_vuln.nasl 7006 2017-08-25 11:51:20Z teissa $
#
# IBM Tivoli Directory Server DIGEST-MD5 Denial of Service Vulnerability
#
# Authors:
# Sooraj KS <[email protected]>
#
# Copyright:
# Copyright (c) 2011 Greenbone Networks GmbH, http://www.greenbone.net
#
# 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 crash an affected server,
  creating a denial of service condition.
  Impact Level: Application";
tag_affected = "IBM Tivoli Directory Server (ITDS) before 6.0.0.8-TIV-ITDS-IF0006";
tag_insight = "The flaw is caused by improper handling of 'DIGEST-MD5' authentication
  requests. By sending a specially-crafted request, a remote attacker could
  exploit this vulnerability using multiple incomplete connections to cause
  the service to terminate.";
tag_solution = "Apply cumulative interim fix 6.0.0.8-TIV-ITDS-IF0006
  http://www-01.ibm.com/support/docview.wss?uid=swg24027463";
tag_summary = "The host is running IBM Tivoli Directory Server and is prone
  to denial of service vulnerability.";

if(description)
{
  script_id(801809);
  script_version("$Revision: 7006 $");
  script_tag(name:"last_modification", value:"$Date: 2017-08-25 13:51:20 +0200 (Fri, 25 Aug 2017) $");
  script_tag(name:"creation_date", value:"2011-01-21 14:38:54 +0100 (Fri, 21 Jan 2011)");
  script_cve_id("CVE-2010-2927");
  script_bugtraq_id(42093);
  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_name("IBM Tivoli Directory Server DIGEST-MD5 Denial of Service Vulnerability");

  script_xref(name : "URL" , value : "http://secunia.com/advisories/40791");
  script_xref(name : "URL" , value : "http://xforce.iss.net/xforce/xfdb/60821");
  script_xref(name : "URL" , value : "https://www-304.ibm.com/support/docview.wss?uid=swg1IO12399");

  script_tag(name:"qod_type", value:"remote_banner");
  script_category(ACT_GATHER_INFO);
  script_family("Denial of Service");
  script_copyright("Copyright (C) 2011 Greenbone Networks GmbH");
  script_dependencies("gb_ibm_tivoli_dir_server_detect.nasl");
  script_require_keys("IBM/TDS/Ver");
  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");

## Get IBM Tivoli Directory Server version from KB
tdsVer = get_kb_item("IBM/TDS/Ver");
if(!tdsVer){
  exit(0);
}

## Check For The Vulnerable Versions
if(version_in_range(version: tdsVer, test_version: "6.0", test_version2:"6.0.0.8")) {
  security_message(0);
}