Veritas Backup Exec Server Registry Access - Metasploit

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

Module Overview

---

Name: Veritas Backup Exec Server Registry Access
Module: auxiliary/admin/backupexec/registry
Source code: modules/auxiliary/admin/backupexec/registry.rb
Disclosure date: -
Last modification time: 2020-05-12 22:15:21 +0000
Supported architecture(s): -
Supported platform(s): -
Target service / protocol: -
Target network port(s): 6106
List of CVEs: CVE-2005-0771

This modules exploits a remote registry access flaw in the BackupExec Windows Server RPC service. This vulnerability was discovered by Pedram Amini and is based on the NDR stub information posted to openrce.org. Please see the action list for the different attack modes.

Module Ranking and Traits

---

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

---

msf > use auxiliary/admin/backupexec/registry
msf auxiliary(registry) > show targets
    ... a list of targets ...
msf auxiliary(registry) > set TARGET target-id
msf auxiliary(registry) > show options
    ... show and set options ...
msf auxiliary(registry) > exploit

Required Options

---

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

Go back to menu.

Msfconsole Usage

---

Here is how the admin/backupexec/registry auxiliary module looks in the msfconsole:

msf6 > use auxiliary/admin/backupexec/registry

msf6 auxiliary(admin/backupexec/registry) > show info

       Name: Veritas Backup Exec Server Registry Access
     Module: auxiliary/admin/backupexec/registry
    License: Metasploit Framework License (BSD)
       Rank: Normal

Provided by:
  hdm <[email protected]>

Available actions:
  Name                 Description
  ----                 -----------
  Create Logon Notice  Add a logon notice
  System Information   Dump system info (user, owner, OS, CPU...)

Check supported:
  No

Basic options:
  Name    Current Setting             Required  Description
  ----    ---------------             --------  -----------
  RHOSTS                              yes       The target host(s), range CIDR identifier, or hosts file with syntax 'file:<path>'
  RPORT   6106                        yes       The target port (TCP)
  WARN    Compromised by Metasploit!  no        The warning to display for the Logon Notice action

Description:
  This modules exploits a remote registry access flaw in the 
  BackupExec Windows Server RPC service. This vulnerability was 
  discovered by Pedram Amini and is based on the NDR stub information 
  posted to openrce.org. Please see the action list for the different 
  attack modes.

References:
  OSVDB (17627)
  https://nvd.nist.gov/vuln/detail/CVE-2005-0771
  http://www.idefense.com/application/poi/display?id=269&type=vulnerabilities

Module Options

---

This is a complete list of options available in the admin/backupexec/registry auxiliary module:

msf6 auxiliary(admin/backupexec/registry) > show options

Module options (auxiliary/admin/backupexec/registry):

   Name    Current Setting             Required  Description
   ----    ---------------             --------  -----------
   RHOSTS                              yes       The target host(s), range CIDR identifier, or hosts file with syntax 'file:<path>'
   RPORT   6106                        yes       The target port (TCP)
   WARN    Compromised by Metasploit!  no        The warning to display for the Logon Notice action

Auxiliary action:

   Name                Description
   ----                -----------
   System Information  Dump system info (user, owner, OS, CPU...)

Advanced Options

---

Here is a complete list of advanced options supported by the admin/backupexec/registry auxiliary module:

msf6 auxiliary(admin/backupexec/registry) > show advanced

Module advanced options (auxiliary/admin/backupexec/registry):

   Name                 Current Setting  Required  Description
   ----                 ---------------  --------  -----------
   CHOST                                 no        The local client address
   CPORT                                 no        The local client port
   ConnectTimeout       10               yes       Maximum number of seconds to establish a TCP connection
   DCERPC::ReadTimeout  10               yes       The number of seconds to wait for DCERPC responses
   Proxies                               no        A proxy chain of format type:host:port[,type:host:port][...]
   SSL                  false            no        Negotiate SSL/TLS for outgoing connections
   SSLCipher                             no        String for SSL cipher - "DHE-RSA-AES256-SHA" or "ADH"
   SSLVerifyMode        PEER             no        SSL verification method (Accepted: CLIENT_ONCE, FAIL_IF_NO_PEER_CERT, NONE, PEER)
   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)
   VERBOSE              false            no        Enable detailed status messages
   WORKSPACE                             no        Specify the workspace for this module

Auxiliary Actions

---

This is a list of all auxiliary actions that the admin/backupexec/registry module can do:

msf6 auxiliary(admin/backupexec/registry) > show actions

Auxiliary actions:

   Name                 Description
   ----                 -----------
   Create Logon Notice  Add a logon notice
   System Information   Dump system info (user, owner, OS, CPU...)

Evasion Options

---

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

msf6 auxiliary(admin/backupexec/registry) > show evasion

Module evasion options:

   Name                             Current Setting  Required  Description
   ----                             ---------------  --------  -----------
   DCERPC::fake_bind_multi          true             no        Use multi-context bind calls
   DCERPC::fake_bind_multi_append   0                no        Set the number of UUIDs to append the target
   DCERPC::fake_bind_multi_prepend  0                no        Set the number of UUIDs to prepend before the target
   DCERPC::max_frag_size            4096             yes       Set the DCERPC packet fragmentation size
   DCERPC::smb_pipeio               rw               no        Use a different delivery method for accessing named pipes (Accepted: rw, trans)
   TCP::max_send_size               0                no        Maxiumum tcp segment size.  (0 = disable)
   TCP::send_delay                  0                no        Delays inserted before every send.  (0 = disable)

Go back to menu.

Error Messages

---

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.

Failed to read <HIVE>\<SUBKEY>\<SUBVAL>...

---

Here is a relevant code snippet related to the "Failed to read <HIVE>\<SUBKEY>\<SUBVAL>..." error message:

77:	    data   = backupexec_regread(hive, subkey, subval)
78:	
79:	    if (data)
80:	      print_status("DATA: #{deunicode(data)}")
81:	    else
82:	      print_error("Failed to read #{hive}\\#{subkey}\\#{subval}...")
83:	    end
84:	
85:	  end
86:	
87:	  def cmd_regenum(*args)

Failed to enumerate <HIVE>\<SUBKEY>...

---

Here is a relevant code snippet related to the "Failed to enumerate <HIVE>\<SUBKEY>..." error message:

97:	    data   = backupexec_regenum(hive, subkey)
98:	
99:	    if (data)
100:	      print_status("DATA: #{deunicode(data)}")
101:	    else
102:	      print_error("Failed to enumerate #{hive}\\#{subkey}...")
103:	    end
104:	
105:	  end
106:	
107:	  def system_info

Go back to menu.

Related Pull Requests

---

• #13443 Merged Pull Request: Add descriptions to auxiliary modules Actions
• #8888 Merged Pull Request: spelling/grammar fixes part 1
• #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
• #7338 Merged Pull Request: Relocate Rex::Platform:Windows content (fixes MS-1714)
• #6812 Merged Pull Request: Resolve #6807, remove all OSVDB references.
• #6655 Merged Pull Request: use MetasploitModule as a class name
• #6648 Merged Pull Request: Change metasploit class names
• #2525 Merged Pull Request: Change module boilerplate
• #1228 Merged Pull Request: MSFTIDY cleanup #1 - auxiliary

References

---

• OSVDB (17627)
• CVE-2005-0771
• http://www.idefense.com/application/poi/display?id=269&type=vulnerabilities

See Also

---

Check also the following modules related to this module:

• auxiliary/admin/backupexec/dump
• exploit/windows/backupexec/name_service
• exploit/windows/backupexec/remote_agent
• exploit/windows/backupexec/ssl_uaf
• exploit/windows/browser/symantec_backupexec_pvcalendar
• exploit/windows/local/registry_persistence
• auxiliary/gather/java_rmi_registry
• auxiliary/gather/snare_registry
• exploit/windows/local/ms13_097_ie_registry_symlink

Authors

---

• hdm

Version

---

This page has been produced using Metasploit Framework version 6.1.24-dev. For more modules, visit the Metasploit Module Library.

Go back to menu.