FlatNuke index.php url_avatar Field Arbitrary PHP Code Execution

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

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

if (description)
{
  script_id(16095);
  script_version("1.21");
  script_set_attribute(attribute:"plugin_modification_date", value:"2022/04/11");

  script_cve_id("CVE-2005-0267", "CVE-2005-0268");
  script_bugtraq_id(12150);

  script_name(english:"FlatNuke index.php url_avatar Field Arbitrary PHP Code Execution");

  script_set_attribute(attribute:"synopsis", value:
"The remote web server contains a PHP application that is affected by
multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The remote host is running FlatNuke, a content management system
written in PHP and using flat files rather than a database for its
storage. 

The remote version of this software has a form submission
vulnerability that may allow an attacker to execute arbitrary PHP
commands on the remote host.");
  script_set_attribute(attribute:"see_also", value:"https://marc.info/?l=bugtraq&m=110477752916772&w=2");
  script_set_attribute(attribute:"solution", value:
"Upgrade to FlatNuke version 2.5.2 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  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:"vuln_publication_date", value:"2005/01/02");
  script_set_attribute(attribute:"plugin_publication_date", value:"2005/01/04");

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

  script_category(ACT_GATHER_INFO);
  script_family(english:"CGI abuses");

  script_copyright(english:"This script is Copyright (C) 2005-2022 Tenable Network Security, Inc.");

  script_dependencies("http_version.nasl");
  script_require_keys("www/PHP");
  script_exclude_keys("Settings/disable_cgi_scanning");
  script_require_ports("Services/www", 80);

  exit(0);
}


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


port = get_http_port(default:80, embedded: 0, php: 1);


# Search for FlatNuke.
if (thorough_tests) dirs = list_uniq(make_list("/flatnuke", cgi_dirs()));
else dirs = make_list(cgi_dirs());

foreach dir ( dirs )
{
res = http_get_cache(item:string(dir, "/index.php"), port:port, exit_on_fail: 1);

if ( 'Powered by <b><a href="http://flatnuke.sourceforge.net">' >< res )
{
 str = chomp(egrep(pattern:'Powered by <b><a href="http://flatnuke.sourceforge.net">', string:res));
 version = ereg_replace(pattern:".*flatnuke-([0-9.]*).*", string:str, replace:"\1");
 if ( dir == "" ) dir = "/";

 # nb: pages no longer seem to include a version number so don't rely on the
 #     KB entry at least until a more general detection plugin can be written.
 set_kb_item(name:"www/" + port + "/flatnuke", value: version + " under " + dir);

 if ( ereg(pattern:"^([0-1]\.|2\.([0-4]\.|5\.[0-1][^0-9]))", string:version) )
 	{
	security_hole( port );
	exit(0);
	}
 }
}