Cracking Linksys “Encryption” – /dev/ttyS0
Perusing the release notes for the latest Linksys WRT120N firmware, one of the more interesting comments reads: Firmware 1.0.07 (Build 01) – Encrypts the configuration file. Having previously reversed...
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WRT120N fprintf Stack Overflow – /dev/ttyS0
With a good firmware disassembly and JTAG debug access to the WRT120N, it’s time to start examining the code for more interesting bugs. As we’ve seen previously, the WRT120N runs a Real Time Operating...
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Hacking the D-Link DSP-W215 Smart Plug – /dev/ttyS0
The D-Link DSP-W215 Smart Plug is a wireless home automation device for monitoring and controlling electrical outlets. It isn’t readily available from Amazon or Best Buy yet, but the firmware is up on...
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Hacking the DSP-W215, Again – /dev/ttyS0
D-Link recently released firmware v1.02 for the DSP-W215 to address the HNAP buffer overflow bug in my_cgi.cgi. Although they were quick to remove the download link for the new firmware (you must “Use...
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Hacking the DSP-W215, Again, Again – /dev/ttyS0
Here we go again…again. In the last DSP-W215 exploit, I mentioned that the exploit’s POST parameter name had to be “storage_path” in order to prevent the get_input_entries function from crashing...
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Hacking the DSP-W215, Again, Again, Again – /dev/ttyS0
So far, the vulnerabilities found in the DSP-W215 have only been practically exploitable from the LAN, unless someone was foolish enough to make their smart plug remotely accessible on the Internet....
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A Code Signature Plugin for IDA – /dev/ttyS0
When reversing embedded code, it is often the case that completely different devices are built around a common code base, either due to code re-use by the vendor, or through the use of third-party...
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Reversing D-Link’s WPS Pin Algorithm – /dev/ttyS0
While perusing the latest firmware for D-Link’s DIR-810L 80211ac router, I found an interesting bit of code in sbin/ncc, a binary which provides back-end services used by many other processes on the...
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Hacking the D-Link DIR-890L – /dev/ttyS0
The past 6 months have been incredibly busy, and I haven’t been keeping up with D-Link’s latest shenanigans. In need of some entertainment, I went to their web page today and was greeted by this...
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Reversing Belkin’s WPS Pin Algorithm – /dev/ttyS0
After finding D-Link’s WPS algorithm, I was curious to see which vendors might have similar algorithms, so I grabbed some Belkin firmware and started dissecting it. This particular firmware uses the...
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