Allaire/Macromedia JRun Directory Browsing Vulnerability (MPSB01-13) - Active Check

# SPDX-FileCopyrightText: 2005 Felix Huber
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only

CPE = "cpe:/a:adobe:jrun";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.10814");
  script_version("2023-10-10T05:05:41+0000");
  script_tag(name:"last_modification", value:"2023-10-10 05:05:41 +0000 (Tue, 10 Oct 2023)");
  script_tag(name:"creation_date", value:"2005-11-03 14:08:04 +0100 (Thu, 03 Nov 2005)");
  script_tag(name:"cvss_base", value:"5.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:N/A:N");
  script_cve_id("CVE-2001-1510");
  script_name("Allaire/Macromedia JRun Directory Browsing Vulnerability (MPSB01-13) - Active Check");
  script_category(ACT_ATTACK); # nb: Crafted request might be already seen as an attack
  script_copyright("Copyright (C) 2005 Felix Huber");
  script_family("Web Servers");
  script_dependencies("gb_microsoft_iis_http_detect.nasl", "gb_adobe_jrun_http_detect.nasl", "no404.nasl", "webmirror.nasl", "DDI_Directory_Scanner.nasl");
  script_require_ports("Services/www", 8000);
  # nb:
  # - Seems only affected when running on IIS and not "standalone"
  # - JRun KB key has been added because the detection is also detecting the product via other means
  #   and not only via the banner
  script_mandatory_keys("adobe/jrun/http/detected", "microsoft/iis/http/detected");

  script_xref(name:"URL", value:"http://www.allaire.com/handlers/index.cfm?ID=22236&Method=Full");
  script_xref(name:"URL", value:"http://www.securityfocus.com/bid/3592");

  script_tag(name:"vuldetect", value:"Sends a crafted HTTP GET request and checks the response.");

  script_tag(name:"solution", value:"From Macromedia Product Security Bulletin (MPSB01-13)

  Macromedia recommends, as a best practice, turning off directory
  browsing for the JRun Default Server in the following applications:

  - Default Application (the application with '/' mapping that causes
  the security problem)

  - Demo Application

  Also, make sure any newly created web application that uses the '/'
  mapping has directory browsing off.

  The changes that need to be made in the JRun Management Console or JMC:

  - JRun Default Server/Web Applications/Default User Application/File
  Settings/Directory Browsing Allowed set to FALSE.

  - JRun Default Server/Web Applications/JRun Demo/File Settings/
  Directory Browsing Allowed set to FALSE.

  Restart the servers after making the changes and the %3f.jsp request
  should now return a 403 forbidden. When this bug is fixed, the request
  (regardless of directory browsing setting) should return a '404 page
  not found'.

  The directory browsing property is called [file.browsedirs]. Changing
  the property via the JMC will cause the following changes:

  JRun 3.0 will write [file.browsedirs=false] in the local.properties
  file. (server-wide change)

  JRun 3.1 will write [file.browsedirs=false] in the webapp.properties
  of the application.");

  script_tag(name:"summary", value:"Allaire JRun 3.0/3.1 under a Microsoft IIS 4.0/5.0 platform has a
  problem handling malformed URLs. This allows a remote user to browse
  the file system under the web root (normally \inetpub\wwwroot).");

  script_tag(name:"affected", value:"Under Windows NT/2000 (any service pack) and IIS 4.0/5.0:

  - JRun 3.0 (all editions)

  - JRun 3.1 (all editions)");

  script_tag(name:"insight", value:"Upon sending a specially formed request to the web server, containing
  a '.jsp' extension makes the JRun handle the request. Example:

  http://example.com/%3f.jsp");

  script_tag(name:"impact", value:"This vulnerability allows anyone with remote access to the web server
  to browse it and any directory within the web root.");

  script_tag(name:"qod_type", value:"remote_vul");
  script_tag(name:"solution_type", value:"Mitigation");

  exit(0);
}

include("http_func.inc");
include("http_keepalive.inc");
include("port_service_func.inc");
include("list_array_func.inc");
include("host_details.inc");

if( ! port = get_app_port( cpe:CPE, service:"www" ) )
  exit( 0 );

if( ! get_app_location( cpe:CPE, port:port, nofork:TRUE ) )
  exit( 0 );

foreach dir( make_list_unique( "/", "/images", "/html", http_cgi_dirs( port:port ) ) ) {

  install = dir;
  if( dir == "/" )
    dir = "";

  req = http_get( item:dir + "/%3f.jsp", port:port );
  res = http_keepalive_send_recv( port:port, data:req );
  if( ! res )
    continue;

  if( egrep( pattern:"Index of /", string:res ) || ( egrep( pattern:"Directory Listing", string:res ) ) )
    ddir += http_report_vuln_url( port:port, url:install, url_only:TRUE ) + '\n';
}

if( ! isnull( ddir ) ) {
  report = 'The following directories were found to be browsable:\n\n' + ddir;
  security_message( port:port, data:report );
  exit( 0 );
}

exit( 99 );