leveraging social engineering in physical security assessments...stephanie “snow” carruthers...

Leveraging Social Engineering in Physical Security Assessments

Stephanie “Snow” Carruthers

October 26, 2017

About Me

▪ Professional Social Engineer

▪ DEF CON 22 SECTF Black Badge (2014)

▪ SAINTCON Vault Physical Security Challenge Black Badge (2017)

▪ Tabletop Games

▪ Salt Lake City, Utah

Twitter: @_sn0ww

Stephanie

Proactive Security Services

MindPoint Group’s Proactive Security services allow organizations to become aware of their vulnerabilities and understand what steps to take to secure their information. MPG’s services include:

• Technical Security Assessments

• Application Security

• Penetration Testing

• Social Engineering

Agenda

A OSINT

Y Pretext Development

Agenda

(

I Recon

2 On-Site Goals

O Training

OSINT

• Trappings• Badges• Jobs• Out-of-office

Employees• Access Control Systems• Guards• Cameras• Nearby Restaurants• Maps/Floor Plans• Event Calendar

Company Location

• Names• Badges• Business Cards• Uniform

Vendors

OSINT

Social Media

Business Casual Dress

Some with badges some

without

TRAPPINGS

D

Employee Turnstile Stairs on the leftGlass elevator

FLOOR PLAN

A

HID Clamshell Badge

RFID SYSTEM

4

LayoutDesign

Color Codes

BADGES

T

OSINT

Problems with

policies….

OSINT

Security Through

Obscurity

OSINT

Floor Plans, building information, and

company calendars… oh my!

OSINT

Places to check

• http://www.loopnet.com

• Real Estate Companies

• Google Maps

• Company website for building management

company

• Company website for calendars

OSINT

Watering Holes

OSINT

Recon via YouTubeNew company building, internships, jobs are all common

reasons why companies make videos to promote

themselves. These videos typically contain a lot of useful

information for us.

OSINT

Vendors

Pretext Creation

Do NOT impersonate:

• Law Enforcement

• Doctors

• Lawyers

• Maybe others depending on

state law

Pretext Laws

Pretext Creation

Scope Limitations

• Clothing• Transportation• Badges• Business Cards• Clipboards/Documents

Appearance

Documentation of Pretext• Internal • ExternalPretext Reuse

Pretext Creation

Why pretext reuse isn’t always a good idea…

Image Source: https://spellboundbookshop.com/wp-content/uploads/2016/08/storytime-gold.jpg

Pretext Creation

Always have a plan B, and C…


Recon

Reconnaissance

Recon

• Entrances• Public• Employee Only

• Operating Hours• Access Control Systems• Loading Docks/Service

bays• Dumpsters

Perimeter• Physical Security

Controls• Locks• Turnstiles• RFID

• Guards• Cameras

Interior

• Coffee Shops• Restaurants

Nearby

Risk Chart

Medium

Low

High

On-Site Goals

Tailgating & Piggybacking

Tailgating

Tailgating means that others are following through

the door without the knowledge of the person who

has opened the door

Piggybacking

Piggybacking implies that the person who has

opened the door with their credentials knows that

others are following them into a secure area

On-Site Goals

Tailgating & Piggybacking

My favorite piggybacking story…


On-Site Goals

Document Management

Where to look:

• Trash Cans

• Dumpsters

• Shred Bins

• Breakrooms

• Mailrooms

• Bathrooms

• Employee Desks

• Conference Rooms

• Print Rooms

Image Source: http://www.shrednorth.com/wp-content/uploads/2013/10/shred-north-shredding-containers.jpg

On-Site Goals

Elicitation

What I Do:

• Ask an employee to perform a task:Print a file on a USB

Let me in without a badge

• Ask an employee to provide information:I’m with IT, what's your password?

How do you lock the building?

Where are the patient records?

How do VIPs check-in?

Are cameras being actively monitored?

On-Site Goals

Elicitation

One of my favorite pretexts for elicitation…


On-Site Goals

RFID Cloning

What to use:

• Proxmark

• RFIDler

• Homebrew Solution

• Huntsman (Based off

BishopFox’s Tastic)

Tips:

1. Clone as many as you can during recon

2. Don’t keep RFID cards on you while trying to capture –

Oops …

On-Site Goals

Non-Destructive Entry

What I Use:

• Simple Lockpick set (thx @Serepick)

• Bogotas

• Shims

• Airbag (thx China)

• Thumb Latch Tool (thx @deviantollam)

• Crash bar tool (thx Sparrows)

• Under the door tool (thx @RiftRecon)

On-Site Goals

Picking locks…

The risk has to be worth the reward…


On-Site Goals

USB Drops

Where you do not put them:

• A Parking Lot (Thx Lawyer)

Where do I put them:

• Employee Desks

• Mail rooms, in mailboxes

• Interoffice Mail

• In a white envelope with someone’s name on

them (Thx Jayson Street)

Image Source: http://image.made-in-china.com/43f34j00GnYabfVsOPcI/Slid-Design-USB-Flash-Drive-Memory-Stick-ET012-.jpg

On-Site Goals

USB Drops

Image Source: http://assets.eflorist.com/assets/products/PHR_/T50-3A.jpg

We’ve added them onto

floral and cookie deliveries.

On-Site Goals

USB Drops

What do I name them:

• Q4 Company X Employee Terminations

• 2017 Payroll

• Q4 Bonuses

• 2017 Payroll Decreases

• Company XYZ Merger 2018

On-Site Goals

USB DropsStatistics for 2017

20%

80%

Just USB left in the open

Opened Not Opened

60%

40%

USB in envelop with employee name

Opened Not Opened

On-Site Goals

USB Drops

On-Site Goals

Network Port SecurityThis is done as a minor subcomponent. It is not the holy grail of the test.

What I do:

• Plug a laptop in and run a simple ping scan

Where I do it:

• Conference Rooms

• Unattended Lobbies

• Cubicle Areas

• The Data Center

• Really, where ever I see a jack and an opportunity

On-Site Goals

TheftStuff I jack:

• Laptops

• Phones

• Files

• Building Keys

• Badges

Where I put it:

A designated office which I predetermine with the point of

contact.

On-Site Goals

After-Hours Access

Why come back at night:

• Different staff are working

• No staff is present

• Building usually has more security features to test

What do I do:

• Rinse and repeat!

Risk Chart

Medium

Low

High

• After Hours Access• NDE• Theft

• Network Port Security• Elicitation• Badge Replication

• Tailgating/Piggybacking• Document Management• USB Drops• RFID Cloning

Tips & Tricks

Image Source: http://trikkeacademy.com/wordpress/wp-content/uploads/2016/02/tips-tricks.jpg

Tips & Tricks

Bathrooms are your friend

Bathrooms are generally a great place to hide if you

need to duck away or you think someone is getting

suspicious.

Sneak into a bathroom right before closing time and

wait for everyone to leave.

Tips & Tricks

Get out of jail free card…

Fake copies don’t make you friends. I typically bring

the entire statement of work with me.

Image Source: http://www.thepostturtle.com/wp-content/uploads/2015/02/Get-Out-of-Jail-Free.jpg

Tips & Tricks

“Out of Order”

Place an out of order sign over a shredder and

place an empty bin next to it. Return later in the day

to collect your documents.

Image Source: https://cdn2.bigcommerce.com/server4600/10c6f/products/1525/images/2790/WS26007_Red_Out_Of_Order_sign__53859.1397133707.450.450.png?c=2

Tips & Tricks

Spilled coffee

Spill some coffee on a fake resume.

Ask the front desk employee to help you out of a jam

and print off a fresh copy from your convenient USB

drive.

Image Source: https://static1.squarespace.com/static/54adb763e4b0faae8683e555/t/54b539e5e4b09f5e2402e436/1421680203051/

Training

“Tell me and I forget. Teach me and I remember. Involve me and I learn.” – Benjamin Franklin

• “Teachable moments” can be conducted

on the spot or the next day after the

assessment.

• Hold on-site security awareness training

using the results from the assessment.

Recap

A OSINT

Y Pretext Development

Recap

(

I Recon

2 On-Site Goals

O Training

Q&A

Questions?

Contact Us

Stephanie Carruthers

Twitter: @_sn0ww

Social Engineer Team Lead

[email protected]

www.mindpointgroup.com

Follow Us on Social Media

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