IBM Tivoli Directory Server DIGEST-MD5 Denial of Service Vulnerability

# SPDX-FileCopyrightText: 2011 Greenbone AG
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.801809");
  script_version("2023-07-28T05:05:23+0000");
  script_tag(name:"last_modification", value:"2023-07-28 05:05:23 +0000 (Fri, 28 Jul 2023)");
  script_tag(name:"creation_date", value:"2011-01-21 14:38:54 +0100 (Fri, 21 Jan 2011)");
  script_cve_id("CVE-2010-2927");
  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://www.securityfocus.com/bid/42093");
  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_xref(name:"URL", value:"http://www-01.ibm.com/support/docview.wss?uid=swg24027463");

  script_tag(name:"qod_type", value:"remote_banner");
  script_category(ACT_GATHER_INFO);
  script_family("Denial of Service");
  script_copyright("Copyright (C) 2011 Greenbone AG");
  script_dependencies("gb_ibm_tivoli_dir_server_detect.nasl");
  script_mandatory_keys("IBM/TDS/Ver");
  script_tag(name:"impact", value:"Successful exploitation will allow attacker to crash an affected server,
  creating a denial of service condition.");
  script_tag(name:"affected", value:"IBM Tivoli Directory Server (ITDS) before 6.0.0.8-TIV-ITDS-IF0006");
  script_tag(name:"insight", value:"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.");
  script_tag(name:"solution", value:"Apply cumulative interim fix 6.0.0.8-TIV-ITDS-IF0006.");

  script_tag(name:"summary", value:"IBM Tivoli Directory Server is prone to a denial of service (DoS) vulnerability.");

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

  exit(0);
}


include("version_func.inc");

tdsVer = get_kb_item("IBM/TDS/Ver");
if(!tdsVer){
  exit(0);
}

if(version_in_range(version: tdsVer, test_version: "6.0", test_version2:"6.0.0.8")) {
  report = report_fixed_ver(installed_version:tdsVer, vulnerable_range:"6.0 - 6.0.0.8");
  security_message(port: 0, data: report);
}