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Remote Router Hack: DSL ADSL router hack using NMAP on Kali Linux. Windows and MAC works too!!
Remote Router Hack: DSL ADSL router hack using NMAP on Kali Linux. Windows and MAC works too!!
A Asynchronous digital subscriber line (DSL or ADSL) modem is a
device used to connect a computer or router to a telephone line which
provides the digital subscriber line service for connectivity to the
Internet, which is often called DSL or ADSL broadband. In this guide I
will show you show you how to scan IP range for connected ADSL or DSL
modem routers and find DSL ADSL router hack remotely. This guide applies
to Windows, Linux or MAC, so it doesn’t matter what’s your Operating
system is, you can try the same steps from all these operating systems.
The term DSL or ADSL modem is technically used to describe a modem
which connects to a single computer, through a USB port or is installed
in a computer PCI slot. The more common DSL or ADSL router which
combines the function of a DSL or ADSL modem and a home router, is a
standalone device which can be connected to multiple computers through
multiple Ethernet ports or an integral wireless access point. Also
called a residential gateway, a DSL or ADSL router usually manages the
connection and sharing of the DSL or ADSL service in a home or small
office network.
What’s in a DSL ADSL Router?
A DSL or ADSL router consists of a box which has an RJ11 jack to
connect to a standard subscriber telephone line. It has several RJ45
jacks for Ethernet cables to connect it to computers or printers,
creating a local network. It usually also has a USB jack which can be
used to connect to computers via a USB cable, to allow connection to
computers without an Ethernet port. A wireless DSL or ADSL router also
has antennas to allow it to act as a wireless access point, so computers
can connect to it forming a wireless network. Power is usually supplied
by a cord from a wall wart transformer.
It usually has a series of LED status lights which show the status of parts of the DSL or ADSL communications link:
- Power light – indicates that the modem is turned on and has power.
- Ethernet lights – There is usually a light over each Ethernet jack. A
steady (or sometimes flashing) light indicates that the Ethernet link
to that computer or device is functioning
- DSL or ADSL light – a steady light indicates that the modem has
established contact with the equipment in the local telephone exchange
(DSL or ADSLAM) so the DSL or ADSL link over the telephone line is
functioning
- Internet light – a steady light indicates that the IP address and
DHCP protocol are initialized and working, so the system is connected to
the Internet
- Wireless light – only in wireless DSL or ADSL modems, this indicates that the wireless network is initialized and working
Almost every ADSL DSL modem router provides a management web-page
available via Internal network (LAN or Local area network) for device
management, configuration and status reporting. You are supposed to
login to the management web-page, configure a username password
combination provided by your ISP (Internet service provider) which then
allows you to connect to internet.
The network is divided into two parts:
External Network
External network indicates the part where ADSL DSL modem routers
connects to upstream provider for internet connectivity. Once connected
to the ISP via a Phone line (ADSL DSL Modem routers can use conventional
Copper Phone lines to connect to ISP at a much higher speed), the
router gets an IP address. This is usually a Publicly routable IP
address which is open to the whole world.
Internal Network
Internal network indicates the part where devices in Local Area
Network connects to the ADSL DSL modem router via either Wireless or
Ethernet cable. Most modem DSL ADSL Modem routers runs a DHCP server
internally which assigns an Internall IP address to the connected
device. When I say device, this can be anything from a conventional
computer, a laptop, a phone (Android, Apple, Nokia or Blackberry etc.), A
smart TV, A Car, NAS, SAN, An orange, A banana, A cow, A dragon, Harry
Potter … I mean anything that’s able to connect to internet! So you get
the idea. Each device get’s it’s own IP address, a Gateway IP and DNS
entries. Depending on different DSL ADSL Modem router, this can be
slightly different, but the idea remains the same, the DSL ADSL Router
allows users to share internet connectivity.
These DSL ADSL Modem Routers are like miniature Gateway devices that
can have many services running on them. Usually they all use BusyBox or
similar proprietary Linux applications on them. You want to know what a
DSL ADSL Router can do? Here’s a list of common services that can run on
a DSL ADSL Modem Router:
- ADSL2 and/or ADSL2+ support
- Antenna/ae (wireless)
- Bridge/Half-bridge mode
- Cookie blocking
- DHCP server
- DDNS support
- DoS protection
- Switching
- Intrusion detection
- LAN port rate limiting
- Inbuilt firewall
- Inbuilt or Free micro-filter
- Java/ActiveX applet blocking
- Javascript blocking
- MAC address filtering
- Multiple public IP address binding
- NAT
- Packet filter
- Port forwarding/port range forwarding
- POP mail checking
- QoS (especially useful for VoIP applications)
- RIP-1/RIP-2
- SNTP facility
- SPI firewall
- Static routing
- So-called “DMZ” facility
- RFC1483 (bridged/routed)
- IPoA
- PPPoE
- PPPoA
- Embedded PPPoX login clients
- Parental controls
- Print server inbuilt
- Scheduling by time/day of week
- USB print server
- URL blocking facility
- UPnP facility
- VPN pass-through
- Embedded VPN servers
- WEP 64/128/256 bit (wireless security)
- WPA (wireless security)
- WPA-PSK (wireless security)
That’s a lot of services running on a small device that are
configured by nanny, granny, uncle, aunt and the next door neighbour, in
short many non technical people around the world. How many of those
configured badly? Left ports open left right and center? Didn’t change
default admin passwords? Many! I mean MANY! In this guide we will use
namp to scan a range of IP addresses, from output we will determine
which are DSL ADSL Routers and have left their Management ports open to
External Network. (again read top section to know which one is a
external network).
A typical ADSL Router’s Management interface is available via following URL:
http://10.0.0.1/
http://192.168.0.1/
http://192.168.1.1/
http://192.168.1.254/
etc.
This is the Management page for DSL ADSL modem router and it’s always
protected by a password. By default, this password is written below a
DSL ADSL modem router in a sticker and they are one of these
combinations:
Username/Password
admin/admin
admin/password
admin/pass
admin/secret
etc.
A lot of the home users doesn’t change this password. Well, that’s
ok. It doesn’t hurt much cause this is only available via a connected
device. But what’s not OKAY is when users open up their management to
the external network. All you need to know what’s the Public IP address
for your target and just try to access this management page externally.
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Remote Router Hack: DSL ADSL router hack using NMAP on Kali Linux. Windows and MAC works too!!
