Myself – Self Boasting/ Self D**ba

Authored a book at an age of 21 (2nd edition WIP) ISO 27001:2013 ISMS LA, CEH, CCNA, ECSA , JNCIP- SEC, JNCIS-SEC etc. Featured in Deccan Chronicle, The Hindu, The HANS India, Eenadu, Vaartha, Saakshi, AndhraJyothi, Andhrabhoomi etc. Interviewed by HMTV news channel Reported vulnerabilities on 100+ popular websites and got lucky with more than 2 dozen of CVE-IDs Reported BOF on Yahoo Messenger Trained more than 10,000 people (Corporate + Students) Currently working with TCS as Security Analyst

Enough ……….Just Stop it………!

Where am I taking you now?

Hell, why do I need to listen to this ? Introduction to barcodes Breaking down EAN – 13 Your Weapons Here comes the “heart” of this power-point deck My experience with Barcode cracking a) XYZ MNC well-known barcode crack b) XYZ shopping mall etc

Brief Introduction on XSS, SQL etc. attacks via Paper, yeah it’s via PAPER…! or NEWS PAPER…! OMG…!

With barcode cracking, you can

a) Buy a costly product at the rate of a cheap one

b) Free entry to parties – free beers etc

c) Free parking

d) Bypassing access control - Get free attendance / break your friend’s

attendance etc.

Disclaimer:

I am no way responsible for any mis-use of this technique. I am sharing it just for informational purposes.

Why do I need to listen to this ?

Introduced by Joseph Woodland and Bernard Silver in 1952 First used in ACI but failed and then started commercially on Wrigley company - chewing gum

Optical representation of data to uniquely identify items Used for tickets, market items, books , parcel tracking, parking etc

Barcodes , Scanners / Verifiers Barcode verifier standards

a)  ISO/IEC 15416 (linear)      b)  ISO/IEC 15426-2 (2D)

Introduction to Barcodes

Classification

1. 1D a) EAN – 13 (World-wide)

b) UPC (USA, Canada etc) c) Code 128 d) CodeBar e) Plessey etc

2. 2D (More information) a) QR code b) Maxi code c) Aztec code etc

3. 3D (Basing on height) - To withstand high temperature or chemical environments

Slide – Manideep

QR code Aztec Code Code 128

Why EAN 13? - Everywhere

Book

Deodorant

Shirt

Moisturizer Shampoo

Face wash

Powder

Breaking down EAN 13 into pieces

Do I need to learn this for doing hacks based on barcode??? - Yes…!

Country Code - 1st two/three digits

Manufacturer – Product code

Verifying check sum digit

1. Numbers at Even position are summed to value A #0+#2+#4+#6+#8+#10 = Value A [7+0+0+4+3+1 = 15 ]2. Numbers at Odd position are summed and multiplied by 3 3*(#1+#3+#5+#7+#9+#11) = Value B [3* (5+1+5+5+0+0) = 48 ]3. Value A + Value B = Value C [ 63 ]4. Remainder of (value C /10) is taken as value D [ 3 ]5. If check digit = (10 value D), the code read by the machine is correct. [ 7 ]‐

Initial Bit – Part 1 – Part 2

Ever wondered, How are those lines generated?

7 - 501054 - 530107

Black – 1 and white space – 0 Borders: 101 (left and right) and Center: 01010 (middle)

7 – ABABAB

<left border> 101

<part generated from A/B> 0110001 0100111 0011001 0100111 0110001 0011101

+<central > 01010

+< part generated from C > 1001110 1000010 1110010 1100110 1110010 1000100

<right border> 101

Fuzzy Buzzy……

Finally…!

101 0110001 0100111 0011001 0100111 0110001 0011101 01010 1001110 1000010 1110010 1100110 1110010 1000100 101

At your own risk…!

Your weapons

Barcode generators

Online : http://www.terryburton.co.uk/barcodewriter/generator/

Offline : ByteScout barcode generator

Barcode decoders

http://www.onlinebarcodereader.com/

http://zxing.org/w/decode.jspx

http://www.onlinebarcodescan.com/

http://online-barcode-reader.inliteresearch.com/

1 – stop point for printers, stickers, labels, scanners etc

http://www.barcodesinc.com/

http://www.3sindustries.in/

XYZ Shopping Mall

Buy a product worth INR Rs 5000/- for INR Rs 1000/-

Demo experience (Social Engineering*)

Other scenarios

Drink beer at free of cost Access Control Magic’sFree ParkingCorporate Asset Management etc

My Journey with “Beeeeeep” – MNC (well known)

Demo Experience

XSS, SQL etc via PAPER…………..! QR codes Below QR code for <script>alert("test")</script> (Demo)

http://qrcode.kaywa.com/

More demo and in-details in next talk

Questions????

Resources:

www.barcodeisland.com

http://www.phenoelit-us.org/stuff/StrichAufRechnung.pdf

http://en.wikipedia.org/wiki/International_Article_Number_%28EAN%29

How can you reach me?

https://in.linkedin.com/in/manideepk mani [ dot ] konakandla [at] gmail [dot] com