Networking

Short presentation about the ease of finding and getting into unprotected systems.

PDF can be downloaded here.

Presentation given at Stibbe on 5 May 2015.

You’ve just updated your Raspberry Pi (or whatever Linux) and you’re noticing your CIFS (smb) mounts aren’t getting auto mounted anymore. You curse and start noticing this error:

# mount -t cifs //192.168.1.100/public -o username=public,password=public sam/ mount error(13): Permission denied Refer to the mount.cifs(8) manual page (e.g. man mount.cifs)

The solution is to add after -o username=X,password=Y the following: sec=ntlm; thus it becomes -o username=X,password=Y,sec=ntlm.

You can do the same in fstab:

Flightradar24 (T-EBBR55) antenna being installed right next to BRU airport.

Due to interference (GSM? WiFi (very very unlikely)? High voltage power lines?) we moved it to the side, as seen below.

While it is blind from half a side, it can see all the way up to London and beyond.

This is the result:

Because of the mediastorm it’s time for an update. The previous (1, 2, 3) blog posts are outdated!

I’ll do my usual slashdot-effect post in a couple of days (it’s already at 10k views today).

Banks that changed rank since last post (all for the better):

• 16/02/2015:
  • Keytrade: B to A
  • Hello Bank!: C to A
  • ING: F to A-
  • Record Bank: F to A-
• 17/02/2015:
  • ABK: F to B
  • Bank Van Breda: C to B
• 18/02/2015:
  • MeDirect: F to A
  • Added 6 new (small) banks
• 27/02/2015
  • Ogone: C to A-
• 02/03/2015
  • Fortuneo: C to B
• 03/03/2015
  • Crelan: B to A

I cannot test Europabank using SSL Labs. I can only speculate they requested SSL Labs to not scan them. I have also added a couple new banks (Delta Lloyd, Deutsche Bank, Moneyou, Fortuneo, BKCP, Binck, and Isabel as bank tool).

EDIT: ING is now A- (not reflected in this blog post). EDIT 2: Keytrade & Hello Bank also went to A. I’ll post a new blog post later tonight. EDIT 3: Updated post here.

Part three, or how I single-handedly “fixed” SSL at the Belgian banks. ;)

Part one and two are available here. Not related but useful nonetheless NY Times article about bank hackers.

Argenta promised to fix their SSL, so it’s the time to check everything again.

demolished a unifi from Auki and build a 3D printed Turtle around it.

Came out very nicely, and it’s quite solid.

3D renders:

Actual printed design:

Opened up unifi:

About a year later… Except not being white anymore, it still looks good. Outdoor unifi (previous model) connected to Auki.

Picture enhanced by Google Plus to add dramatic effect. ;)

Original picture here.

E-mails that had been deleted for over 7 days were automatically removed from the IMAP server. E-mail date was ignored (ie the mail could have been from 2010; the actual time in “Trash” counted). This didn’t happen to other folders (Sent, Archive, Spam). This recently happened and hadn’t happened before.

I had to restore my trash folder from backups every 7 days (yay for rdiff-backup).

It took me a while to figure it out… The problem first appeared in October, right after several big changes:

I previously wrote about Belgian banks & SSL. Updated version (15/02/2015) here.

Going through my Google Analytics I noticed some noteworthy network domains, which Google discribes as “The fully qualified domain names of your visitors’ Internet service providers (ISPs)”.