Microsoft Outlook Web Access (OWA) owalogon.asp Redirection Account Enumeration

#%NASL_MIN_LEVEL 70300
#
# This script was written by Michael J. Richardson <[email protected]>
# Vulnerability identified by Donnie Werner of Exploitlabs Research Team
#

# Changes by Tenable:
# - Revised plugin title, changed family (5/21/09)
# - Replaced see_also that was 404 (9/1/10)

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

if (description)
{
  script_id(17636);
  script_version("1.25");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/19");

  script_cve_id("CVE-2005-0420");
  script_bugtraq_id(12459);

  script_name(english:"Microsoft Outlook Web Access (OWA) owalogon.asp Redirection Account Enumeration");
  script_summary(english:"The remote host is running Microsoft Outlook Web Access 2003 and is vulnerable to URL Injection.");

  script_set_attribute(attribute:"synopsis", value:
"The remote web server is affected by a URL injection
vulnerability.");
  script_set_attribute(attribute:"description", value:
"The remote host is running Microsoft Outlook Web Access (OWA) 2003. 

Due to a lack of sanitization of the user input, the remote version of
this software is vulnerable to URL injection that can be exploited to
redirect a user to a different, unauthorized web server after
authenticating to OWA.  This unauthorized site could be used to
capture sensitive information by appearing to be part of the web
application.");
  script_set_attribute(attribute:"see_also", value:"https://seclists.org/fulldisclosure/2005/Feb/101");
  script_set_attribute(attribute:"see_also", value:"https://seclists.org/fulldisclosure/2005/Jul/483");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Microsoft Exchange Server 2007 as that reportedly
addresses the issue. 

Alternatively, edit the 'logon.asp' script used by OWA and hardcode a
value for 'redirectPath' in line 54.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N");
  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_cwe_id(20, 74, 79, 442, 629, 711, 712, 722, 725, 750, 751, 800, 801, 809, 811, 864, 900, 928, 931, 990);

  script_set_attribute(attribute:"plugin_publication_date", value: "2005/03/28");
  script_set_attribute(attribute:"vuln_publication_date", value: "2005/02/08");

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

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2005-2021 Michael J. Richardson");
  script_family(english:"CGI abuses");

  script_dependencies("find_service1.nasl", "http_version.nasl");
  script_require_ports("Services/www", 80);
  exit(0);
}

#
# The script code starts here
#

include("global_settings.inc");
include("http_func.inc");
include("http_keepalive.inc");

port = get_http_port(default:80, embedded:TRUE);

if(!get_port_state(port))
  exit(0);

req = http_get(item:string("/exchweb/bin/auth/owalogon.asp?url=http://12345678910"), port:port);
res = http_keepalive_send_recv(port:port, data:req);

if ( res == NULL ) exit(0);

if(ereg(pattern:"^HTTP/[0-9]\.[0-9] 200 ", string:res) &&  
   "owaauth.dll" >< res && 
   '<INPUT type="hidden" name="destination" value="http://12345678910">' >< res)
  {
    security_warning(port);
    set_kb_item(name: 'www/'+port+'/XSS', value: TRUE);
    exit(0);
  }