PHPNews auth.php path Parameter Remote File Inclusion

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

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

if (description)
{
  script_id(17247);
  script_version("1.21");
  script_set_attribute(attribute:"plugin_modification_date", value:"2022/04/11");

  script_cve_id("CVE-2005-0632");
  script_bugtraq_id(12696);

  script_name(english:"PHPNews auth.php path Parameter Remote File Inclusion");

  script_set_attribute(attribute:"synopsis", value:
"The remote web server contains a PHP script that suffers from a remote
file include vulnerability.");
  script_set_attribute(attribute:"description", value:
"The remote host is running PHPNews, an open source news application
written in PHP. 

The installed version of PHPNews has a remote file include
vulnerability in the script 'auth.php'.  By leveraging this flaw, a
attacker can cause arbitrary PHP code to be executed on the remote
host using the permissions of the web server user.");
  script_set_attribute(attribute:"see_also", value:"https://seclists.org/bugtraq/2005/Mar/39");
  script_set_attribute(attribute:"see_also", value:"http://newsphp.sourceforge.net/changelog/changelog_1.25.txt");
  script_set_attribute(attribute:"solution", value:
"Upgrade to PHPNews 1.2.5 or greater or make sure PHP's
'register_globals' and 'allow_url_fopen' settings are disabled.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");

  script_set_attribute(attribute:"exploitability_ease", value:"No exploit is required");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"vuln_publication_date", value:"2005/03/01");
  script_set_attribute(attribute:"plugin_publication_date", value:"2005/03/02");

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

  script_category(ACT_ATTACK);
  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);


# Loop through directories.
if (thorough_tests) dirs = list_uniq(make_list("/phpnews", "/news", 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 the main page is from PHPNews...
  if ('<link href="phpnews_package.css"' >< res) {
    # Try the exploit by grabbing the site's PHPNews phpnews_package.css.
    exploit = string("/auth.php?path=http://", get_host_name(), dir, "/phpnews_package.css%00");
    r = http_send_recv3(method:"GET", item:string(dir, exploit), port:port, exit_on_fail: 1);
    res = r[2];

    # If it looks like we got a stylesheet, there's a problem.
    if ("a:link {" >< res) {
      security_warning(port);
      exit(0);
    }
  }
}