NFR Agent Heap Overflow Vulnerability - Metasploit

This page contains detailed information about how to use the auxiliary/dos/http/novell_file_reporter_heap_bof metasploit module. For list of all metasploit modules, visit the Metasploit Module Library.

Module Overview

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Name: NFR Agent Heap Overflow Vulnerability
Module: auxiliary/dos/http/novell_file_reporter_heap_bof
Source code: modules/auxiliary/dos/http/novell_file_reporter_heap_bof.rb
Disclosure date: 2012-11-16
Last modification time: 2020-10-02 17:38:06 +0000
Supported architecture(s): -
Supported platform(s): -
Target service / protocol: http, https
Target network port(s): 80, 443, 3000, 3037, 8000, 8008, 8080, 8443, 8880, 8888
List of CVEs: CVE-2012-4956, CVE-2012-4959

This module exploits a heap overflow in NFRAgent.exe, a component of Novell File Reporter (NFR). The vulnerability occurs when handling requests of name "SRS", where NFRAgent.exe fails to generate a response in a secure way, copying user controlled data into a fixed-length buffer in the heap without bounds checking. This module has been tested against NFR Agent 1.0.4.3 (File Reporter 1.0.2).

Module Ranking and Traits

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Module Ranking:

• normal: The exploit is otherwise reliable, but depends on a specific version and can't (or doesn't) reliably autodetect. More information about ranking can be found here.

Basic Usage

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msf > use auxiliary/dos/http/novell_file_reporter_heap_bof
msf auxiliary(novell_file_reporter_heap_bof) > show targets
    ... a list of targets ...
msf auxiliary(novell_file_reporter_heap_bof) > set TARGET target-id
msf auxiliary(novell_file_reporter_heap_bof) > show options
    ... show and set options ...
msf auxiliary(novell_file_reporter_heap_bof) > exploit

Required Options

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• RHOSTS: The target host(s), range CIDR identifier, or hosts file with syntax 'file:<path>'

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Msfconsole Usage

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Here is how the dos/http/novell_file_reporter_heap_bof auxiliary module looks in the msfconsole:

msf6 > use auxiliary/dos/http/novell_file_reporter_heap_bof

msf6 auxiliary(dos/http/novell_file_reporter_heap_bof) > show info

       Name: NFR Agent Heap Overflow Vulnerability
     Module: auxiliary/dos/http/novell_file_reporter_heap_bof
    License: Metasploit Framework License (BSD)
       Rank: Normal
  Disclosed: 2012-11-16

Provided by:
  juan vazquez <[email protected]>

Check supported:
  No

Basic options:
  Name     Current Setting  Required  Description
  ----     ---------------  --------  -----------
  Proxies                   no        A proxy chain of format type:host:port[,type:host:port][...]
  RHOSTS                    yes       The target host(s), range CIDR identifier, or hosts file with syntax 'file:<path>'
  RPORT    3037             yes       The target port (TCP)
  SSL      true             yes       Use SSL
  VHOST                     no        HTTP server virtual host

Description:
  This module exploits a heap overflow in NFRAgent.exe, a component of 
  Novell File Reporter (NFR). The vulnerability occurs when handling 
  requests of name "SRS", where NFRAgent.exe fails to generate a 
  response in a secure way, copying user controlled data into a 
  fixed-length buffer in the heap without bounds checking. This module 
  has been tested against NFR Agent 1.0.4.3 (File Reporter 1.0.2).

References:
  https://nvd.nist.gov/vuln/detail/CVE-2012-4956
  https://blog.rapid7.com/2012/11/16/nfr-agent-buffer-vulnerabilites-cve-2012-4959

Module Options

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This is a complete list of options available in the dos/http/novell_file_reporter_heap_bof auxiliary module:

msf6 auxiliary(dos/http/novell_file_reporter_heap_bof) > show options

Module options (auxiliary/dos/http/novell_file_reporter_heap_bof):

   Name     Current Setting  Required  Description
   ----     ---------------  --------  -----------
   Proxies                   no        A proxy chain of format type:host:port[,type:host:port][...]
   RHOSTS                    yes       The target host(s), range CIDR identifier, or hosts file with syntax 'file:<path>'
   RPORT    3037             yes       The target port (TCP)
   SSL      true             yes       Use SSL
   VHOST                     no        HTTP server virtual host

Advanced Options

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Here is a complete list of advanced options supported by the dos/http/novell_file_reporter_heap_bof auxiliary module:

msf6 auxiliary(dos/http/novell_file_reporter_heap_bof) > show advanced

Module advanced options (auxiliary/dos/http/novell_file_reporter_heap_bof):

   Name                  Current Setting                                     Required  Description
   ----                  ---------------                                     --------  -----------
   DOMAIN                WORKSTATION                                         yes       The domain to use for Windows authentication
   DigestAuthIIS         true                                                no        Conform to IIS, should work for most servers. Only set to false for non-IIS servers
   FingerprintCheck      true                                                no        Conduct a pre-exploit fingerprint verification
   HttpClientTimeout                                                         no        HTTP connection and receive timeout
   HttpPassword                                                              no        The HTTP password to specify for authentication
   HttpRawHeaders                                                            no        Path to ERB-templatized raw headers to append to existing headers
   HttpTrace             false                                               no        Show the raw HTTP requests and responses
   HttpTraceColors       red/blu                                             no        HTTP request and response colors for HttpTrace (unset to disable)
   HttpTraceHeadersOnly  false                                               no        Show HTTP headers only in HttpTrace
   HttpUsername                                                              no        The HTTP username to specify for authentication
   SSLVersion            Auto                                                yes       Specify the version of SSL/TLS to be used (Auto, TLS and SSL23 are auto-negotiate) (Accepted: Auto, TLS, SSL23, SSL3, TLS1, TLS1.1, TLS1.2)
   UserAgent             Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)  no        The User-Agent header to use for all requests
   VERBOSE               false                                               no        Enable detailed status messages
   WORKSPACE                                                                 no        Specify the workspace for this module

Auxiliary Actions

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This is a list of all auxiliary actions that the dos/http/novell_file_reporter_heap_bof module can do:

msf6 auxiliary(dos/http/novell_file_reporter_heap_bof) > show actions

Auxiliary actions:

   Name  Description
   ----  -----------

Evasion Options

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Here is the full list of possible evasion options supported by the dos/http/novell_file_reporter_heap_bof auxiliary module in order to evade defenses (e.g. Antivirus, EDR, Firewall, NIDS etc.):

msf6 auxiliary(dos/http/novell_file_reporter_heap_bof) > show evasion

Module evasion options:

   Name                          Current Setting  Required  Description
   ----                          ---------------  --------  -----------
   HTTP::header_folding          false            no        Enable folding of HTTP headers
   HTTP::method_random_case      false            no        Use random casing for the HTTP method
   HTTP::method_random_invalid   false            no        Use a random invalid, HTTP method for request
   HTTP::method_random_valid     false            no        Use a random, but valid, HTTP method for request
   HTTP::pad_fake_headers        false            no        Insert random, fake headers into the HTTP request
   HTTP::pad_fake_headers_count  0                no        How many fake headers to insert into the HTTP request
   HTTP::pad_get_params          false            no        Insert random, fake query string variables into the request
   HTTP::pad_get_params_count    16               no        How many fake query string variables to insert into the request
   HTTP::pad_method_uri_count    1                no        How many whitespace characters to use between the method and uri
   HTTP::pad_method_uri_type     space            no        What type of whitespace to use between the method and uri (Accepted: space, tab, apache)
   HTTP::pad_post_params         false            no        Insert random, fake post variables into the request
   HTTP::pad_post_params_count   16               no        How many fake post variables to insert into the request
   HTTP::pad_uri_version_count   1                no        How many whitespace characters to use between the uri and version
   HTTP::pad_uri_version_type    space            no        What type of whitespace to use between the uri and version (Accepted: space, tab, apache)
   HTTP::uri_dir_fake_relative   false            no        Insert fake relative directories into the uri
   HTTP::uri_dir_self_reference  false            no        Insert self-referential directories into the uri
   HTTP::uri_encode_mode         hex-normal       no        Enable URI encoding (Accepted: none, hex-normal, hex-noslashes, hex-random, hex-all, u-normal, u-all, u-random)
   HTTP::uri_fake_end            false            no        Add a fake end of URI (eg: /%20HTTP/1.0/../../)
   HTTP::uri_fake_params_start   false            no        Add a fake start of params to the URI (eg: /%3fa=b/../)
   HTTP::uri_full_url            false            no        Use the full URL for all HTTP requests
   HTTP::uri_use_backslashes     false            no        Use back slashes instead of forward slashes in the uri
   HTTP::version_random_invalid  false            no        Use a random invalid, HTTP version for request
   HTTP::version_random_valid    false            no        Use a random, but valid, HTTP version for request

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Error Messages

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This module may fail with the following error messages:

Check for the possible causes from the code snippets below found in the module source code. This can often times help in identifying the root cause of the problem.

NFR Agent didn't die, it still answers...

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Here is a relevant code snippet related to the "NFR Agent didn't die, it still answers..." error message:

57:	      print_good("NFR Agent didn't answer, DoS seems successful")
58:	      return
59:	    end
60:	
61:	    if res
62:	      print_error("NFR Agent didn't die, it still answers...")
63:	      return
64:	    end
65:	
66:	    print_good("NFR Agent didn't answer, DoS seems successful")
67:	  end

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Related Pull Requests

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• #14213 Merged Pull Request: Add disclosure date rubocop linting rule - enforce iso8601 disclosure dates
• #12949 Merged Pull Request: This fixes broken links to the community.rapid7.com blog
• #8716 Merged Pull Request: Print_Status -> Print_Good (And OCD bits 'n bobs)
• #8338 Merged Pull Request: Fix msf/core and self.class msftidy warnings
• #6655 Merged Pull Request: use MetasploitModule as a class name
• #6648 Merged Pull Request: Change metasploit class names
• #6526 Merged Pull Request: Peers for the peer god
• #2525 Merged Pull Request: Change module boilerplate
• #2422 Merged Pull Request: remove peer and rport methods since they are already defined in Msf::Exploit::Remote::HttpClient
• #1147 Merged Pull Request: Change CVE text format
• #1075 Merged Pull Request: Let default timeout for send_request_cgi

References

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• CVE-2012-4956
• https://blog.rapid7.com/2012/11/16/nfr-agent-buffer-vulnerabilites-cve-2012-4959

See Also

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Check also the following modules related to this module:

• auxiliary/admin/http/novell_file_reporter_filedelete
• auxiliary/scanner/http/novell_file_reporter_fsfui_fileaccess
• auxiliary/scanner/http/novell_file_reporter_srs_fileaccess
• auxiliary/scanner/http/novell_mdm_creds
• exploit/linux/misc/novell_edirectory_ncp_bof
• exploit/multi/http/novell_servicedesk_rce
• exploit/windows/browser/novell_groupwise_gwcls1_actvx
• exploit/windows/browser/novelliprint_callbackurl
• exploit/windows/browser/novelliprint_datetime
• exploit/windows/browser/novelliprint_executerequest
• exploit/windows/browser/novelliprint_executerequest_dbg
• exploit/windows/browser/novelliprint_getdriversettings
• exploit/windows/browser/novelliprint_getdriversettings_2
• exploit/windows/browser/novelliprint_target_frame
• exploit/windows/http/novell_imanager_upload
• exploit/windows/http/novell_mdm_lfi
• exploit/windows/http/novell_messenger_acceptlang
• exploit/windows/imap/novell_netmail_append
• exploit/windows/imap/novell_netmail_auth
• exploit/windows/imap/novell_netmail_status
• exploit/windows/imap/novell_netmail_subscribe
• exploit/windows/local/novell_client_nicm
• exploit/windows/local/novell_client_nwfs
• exploit/windows/novell/file_reporter_fsfui_upload
• exploit/windows/novell/groupwisemessenger_client
• exploit/windows/novell/netiq_pum_eval
• exploit/windows/novell/nmap_stor
• exploit/windows/novell/zenworks_desktop_agent
• exploit/windows/novell/zenworks_preboot_op21_bof
• exploit/windows/novell/zenworks_preboot_op4c_bof
• exploit/windows/novell/zenworks_preboot_op6_bof
• exploit/windows/novell/zenworks_preboot_op6c_bof
• auxiliary/admin/http/linksys_tmunblock_admin_reset_bof
• auxiliary/dos/windows/ftp/iis75_ftpd_iac_bof
• auxiliary/dos/http/apache_commons_fileupload_dos

Authors

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• juan vazquez

Version

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This page has been produced using Metasploit Framework version 6.1.28-dev. For more modules, visit the Metasploit Module Library.

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