JanaServer < 2.4.5 Multiple Remote DoS

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


include("compat.inc");


if(description)
{
 script_id(15862);
 script_version("1.12");
 script_bugtraq_id(11780);
 script_xref(name:"Secunia", value:"13333");

 script_name(english:"JanaServer < 2.4.5 Multiple Remote DoS");
 script_summary(english:"Checks for version of JanaServer");

 script_set_attribute(
   attribute:"synopsis",
   value:"The remote service has multiple denial of service vulnerabilities."
 );
 script_set_attribute(attribute:"description", value:
"According to its banner, the version of JanaServer running on the
remote host has the following denial of service vulnerabilities :

  - The 'http-server' module (TCP port 2506) does not
    correctly process requests containing a lot of
    occurences of the '%' character, causing it to
    consume a large amount of CPU resources.

  - The 'pna-proxy' module (TCP port 1090) has an infinite
    loop vulnerability when it receives a data block size
    larger than the amount of data that is actually sent.

A remote attacker can reportedly freeze the server after fifteen or
more attempts to exploit these vulnerabilities." );
 script_set_attribute(
   attribute:"see_also",
   value:"https://seclists.org/bugtraq/2004/Nov/401"
 );
 script_set_attribute(
   attribute:"solution", 
   value:"Upgrade to JanaServer 2.4.5 or later."
 );
 script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");
 script_set_cvss_temporal_vector("CVSS2#E:F/RL:OF/RC:C");
 script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
 script_set_attribute(attribute:"exploit_available", value:"true");
 script_set_attribute(attribute:"plugin_publication_date", value: "2004/11/30");
 script_set_attribute(attribute:"vuln_publication_date", value: "2004/11/30");
 script_cvs_date("Date: 2018/11/15 20:50:27");
 script_set_attribute(attribute:"plugin_type", value: "remote");
 script_end_attributes();

 script_category(ACT_GATHER_INFO);
 script_family(english:"Windows");

 script_copyright(english:"This script is Copyright (C) 2004-2018 and is owned by Tenable, Inc. or an Affiliate thereof.");

 script_dependencie("http_version.nasl");
 script_require_ports("Services/www", 80);

 exit(0);
}

#
# The script code starts here
#


include("global_settings.inc");
include("misc_func.inc");
include("http.inc");

port = get_http_port(default:80);
banner = get_http_banner(port: port, exit_on_fail: 1);
 
if ( egrep(pattern:"^Server: Jana-Server/([01]\.|2\.([0-3]\.|4\.[0-4][^0-9]))", string:banner) )
	security_hole(port);