Full exploit for D-Link DCS-5020L, POC crash for others that are vulnerable as well. # D-Link Exploit
The exploit exists in the devices server, alphapd, when processing `wireless.htm`
prior to displaying it to the user. If `WEPEncryption` is provided in the
URL this leads to a buffer overflow if the value is longer than 0x28 bytes. A
URL of the form:
http://IP_ADDRESS/wireless.htm?WEPEncryption=AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABBBB
will exercise the exploit and begin executing at `0x42424242`.
**Note: The exploit requires credentials to be successful.**
**Default credentials are admin with a blank password.**
## exploit.py
Full exploit that takes advantage of a buffer overflow in the alphapd server to
execute an arbitrary command on the device. It has been tested on the DCS-5020L
with all available versions of the firmware as well as the most recent firmware
of the DCS-930L. More devices and versions can be added by reading the comments
in the [overflow](DlinkExploit/overflows/overflow.py) file. I might add more devices
and versions as time permits, but it's not a high priority. The initial commit of
this project has some simpler Python2 examples.
## Vulnerable Devices
Below is the list of devices effected by this exploit. All versions of the firmware
are currently vulnerable.
**DCS-930L**
**DCS-931L**
**DCS-932L**
**DCS-933L**
**DCS-934L**
**DCS-5009L**
**DCS-5010L**
**DCS-5020L**
**DCS-5025L**
**DCS-5030L**
## Live Vulnerable Devices
https://www.shodan.io/search?query=Server%3A+alphapd
## Example Usage
This project is written in Python 3 and will not execute under Python 2.
`python3 exploit.py -i 192.168.0.100 -P 80 -u admin -p ""`
## In-depth Explaination
Video - https://www.youtube.com/watch?v=ijcbkY3dtso
Skip to 13:15 to hear about the actual exploit.
4 Part Blog
* [Part 1](https://fuzzywalls.github.io/exploits/dcs-5020l-vuln-asses-pt1.html)
* [Part 2](https://fuzzywalls.github.io/exploits/dcs-5020l-vuln-asses-pt2.html)
* [Part 3](https://fuzzywalls.github.io/exploits/dcs-5020l-vuln-asses-pt3.html)
* [Part 4](https://fuzzywalls.github.io/exploits/dcs-5020l-vuln-asses-pt4.html)
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