<p>Challenge:
Santa’s checklist website for presents he already put in his sleigh keeps crashing. Can you help him find out what the problem is? Url for the website is: <a href="https://sleigh.owasp.si">https://sleigh.owasp.si</a></p>
<p>Here we go again! After a difficult year I was really looking forward to a new CTF. Once again presented by
<a href="https://ssrd.io/">SSRD</a>, <a href="https://www.viris.si/">Viris</a>, <a href="https://bsidesljubljana.si/">BSidesLjubljana</a> and also <a href="https://owasp.org/www-chapter-maribor/">OWASP Maribor</a>.</p>
<p>While working on an Android project, one of my tasks was to integrate a home camera
into the app. Its a popular Chinese product and the vendor provides an SDK
and (barely) some english documentation. The SDK uses an “audio pair” feature, where
sound is used to transfer Wi-Fi type, SSID and password information to the camera.
However after performing an SDK upgrade the pairing process started to work without sound,
like magic. This is a dive into this mystery.</p>
<p>I just recently had to migrate a large NFS share due to storage issues.
A new NFS share was prepared on a different system, files were coppied over,
all the nasty UID/GID related permissions taken care of and what was left
was to remount the share on the servers that used it.</p>