need counseling? marrying security and sdlc katya sadovsky application architect, uc irvine

Need Counseling?

Marrying Security and SDLC

Katya SadovskyApplication Architect, UC Irvine

Marina ArsenievAssociate Director of Enterprise Architecture, UC Irvine

Statistics you need to know!

• 3 out of 4 vendor apps we tested had serious SQL Injection bugs!

• 75% of attacks today happen at the Application (Gartner)

• “The cost of correcting code in production increases up to 100 times as compared to in development...”

- (1) MSDN (November, 2005) “Leveraging the Role of Testing and Quality Across the Lifecycle to Cut Costs and Drive IT/Business Responsiveness “

- http://msdn.microsoft.com/vstudio/why/testingquality/default.aspx

• The cost and reputation savings of avoiding a security breach are “priceless”

Higher-Ed Security Incidentshttp://www.privacyrights.org

People Date Type 178,000 April 2004 Hacking

380,000 May 2004 Hacking

207,000 May 2004 Stolen laptop/Hack

600,000 Sept 2004 Hacking

98,400 March 2005 Stolen laptop

59,000 March 2005 Hacking


106,000 April 2005 Hacking

40,000 April 2005 Hacking

150,000 June 2005 Dishonest Insider

72,000 June 2005 Hacking

15,000 June 2005 Stolen laptop

27,000 July 2005 Hacking

People Date Type 42,000 July 2005 Hacking

270,000 July 2005 Exposed online- Injection

31,077 July 2005 Hacking

36,000 August 2005 Hacking


100,000 August, 2005 Hacking


100,000 Sept 2005 Stolen computer

21,762 Sept 2005 Exposed Online

2,800 October 2005 Exposed Online

9,100 October 2005 Exposed Online

93,000 March 2006 Stolen laptop


Agenda

• Demo of Common Application Hacks

• 7 Steps to Integrating SDLC and Security

• SDLC and Sample Checklists

• Security Architecture

• Useful URLs and Q&A

What do Hackers do?

• Application security testing is a “nascent market”. *– Browser caching – Cookie and URL hacks– SQL Injection – Cross-site Scripting

*Gartner

Browser Page Caching

• Be aware that pop-up windows with sensitive information may remain open even after logout

• Pages with sensitive data should not be cached: page content is easily accessed using browser’s history

• Use the following tags to disable page caching:

<META HTTP-EQUIV="Pragma" CONTENT="no-cache"><META HTTP-EQUIV="Cache-Control" CONTENT=“no-store, no-cache"><META HTTP-EQUIV="Expires" CONTENT="-1">

Browser Page Caching

Cookies and URLs

• Sensitive data in cookies and URLs?– Issues that arise are:

• Information is stored on a local computer (as files or in the browser’s history)• Unencrypted data can be intercepted on the network and/or logged into unprotected web log files

– To prevent unauthorized data access:• Do NOT store sensitive data of any kind in cookies or URLs• Use non-persistent cookies (that disappear once a browser is closed) instead of persistent ones.• Use HTTP POST instead of GET when submitting data

SQL Injection Attacks

Web App

Hacker

Uses SQL scriptinjection to

access data

“SQL injection is a security vulnerability that occurs in the database layer of an application. Its source is the incorrect escaping of dynamically-generated string literals embedded in SQL statements. “ (Wikipedia)

SQL Injection Attacks

• Example of attack:– SQL Query in Web application code:

• “SELECT * FROM users WHERE login = ‘” + userName + “’ and password= ‘” + password + “’;”

– Hacker logs in as: ‘ or ‘’ = ‘’; -- • SELECT * FROM users WHERE login = ‘’ or ‘’ = ‘’; --'; and password=‘’;

– Hacker deletes the users table with: ‘ or ‘’ = ‘’; DROP TABLE users; --• SELECT * FROM users WHERE login = ‘’ or ‘’=‘’; DROP TABLE users; --'; and password=‘’;

• SQL Injection examples are outlined in:– http://www.spidynamics.com/papers/SQLInjectionWhitePaper.pdf – http://www.unixwiz.net/techtips/sql-injection.html

SQL Injection Attacks Demo

Cross-Site Scripting (XSS) Attacks

• Malicious code can secretly gather sensitive data from user while using authentic website (login, password, cookie)


• Modified URL– URL parameters are modified on the URL to

contain script code – Input is not validated and displayed as entered

on the resulting dynamic webpage


Web App

Hacker

Injects scriptinto web site

CompromisedWeb App

Retrieves compromisedpage content

Unknowinglyexecutes script

End User

XSS: Script Injection Demo

Preventing SQL injection and XSS

• VALIDATE all user entered parameters– CHECK data types and lengths– DISALLOW unwanted data (e.g. HTML tags,

JavaScript)– ESCAPE questionable characters (ticks,

--,semi-colon, brackets, etc.)

Agenda






Integrating SDLC and Security Step 1: Training

You can build the most secure system, however, if users are not educated on how to use it or on today’s security concerns, regulations, and laws, the system will fail.

Email can be unintentionally used to transmit regulated or confidential information – due to lack of education

Private data can be entered into a text field Training is about a specific purpose or certification Education is more general and conceptual Train Project Leaders, Developers, End users, Business

units on global issues and scope of functions they want. Too much trust and assumptions that technical staff and

vendors are aware of all the issues. Assign appropriately trained staff, mentors/reviewers

Integrating SDLC and Security Step 2: Requirements

Acquisition or development Identify Security requirements at requirements

gathering phase Examples of questions to ask and put into formal

template? Compliance requirements – PCI, SB1386, FERPA, HIPAA Risk assessment – normal or high risk application?

Requirements Template

1.1 User Classes and Characteristics<Identify the various user classes that you anticipate will use this product (i.e. users doing updating vs. users with browse access only). User classes may be differentiated based on frequency of use, subset of product functions used, technical expertise, security or privilege levels, educational level, or experience...>

2.5 Design and Implementation Constraints<Describe any items or issues that will limit the options available to the developers. These might include: …corporate or regulatory policies; …interfaces to other applications; specific technologies, tools, and databases to be used; …communications protocols; security considerations.>

3.4 Communications Interfaces<Describe the requirements associated with any communications functions required by this product, including e-mail, web browser, network server communications protocols, electronic forms, and so on. Define any pertinent message formatting. Identify any communication standards that will be used, such as FTP or HTTP. Specify any communication security or encryption issues, data transfer rates, and synchronization mechanisms.>

5.3 Security Requirements<Specify any requirements regarding security or privacy issues surrounding use of the product or protection of the data used or created by the product. Define any user identity authentication requirements. Refer to any external policies or regulations containing security issues that affect the product. Define any security or privacy certifications that must be satisfied.>

ASP Vendor Security Checklist

What certification or audits does the University have that the system will be managed per our guidelines and contract agreement?

How do you manage the system for detection of intrusion.

How often is the system patched, by whom and when?

How are we notified if system security is breached? Notification handling?

How is data purged from the vendor's hardware?

How are disks, tapes, or computers that might store sensitive data disposed of? Are the media erased before disposal or reuse?

Where is the hardware location? Is it inside or outside of the United States? Is it subject to our laws?

Are the personnel who administer and use the hardware located within the United States and subject to our laws?

Is data encrypted? If private data is transmitted, either via

Internet, on CD-ROM or file transfer, is it encrypted?

Is SSL enabled to the application so that traffic over the Internet, including authentication is secure and private?

Data loss, data backups: what are the guarantees? Are backups stored offsite? If backups have sensitive data, are the backups encrypted? Can we store the backup at UCI? How about disaster recovery planning?

How is the hardware or database distributed by the vendor among customers? Is one hardware used for all customers? Is a single database used for all customers or does each customer have a private database?

How are user accounts managed?

Integrating SDLC and Security Step 3: Design

Use your most experienced security experts! Identify vulnerable points

authentication and authorization/access control database or file stores of sensitive data logging/auditing

Identify, design and use common and tested components

Dedicated Security role required in any organization

Integrating SDLC and Security Step 4: Implementation

Implementation/Acquisition – make security “routine” Schedule code reviews Require developers to build unit test harnesses – Junit

Automate nightly code and application security scanning – Jtest, AppScan, Nessus, database security scanning

Schedule network and configuration scanning - Foundstone

Write and use manual security test procedures Perform concurrency and stress testing - Jmeter, OpenSTA

Integration testing Services and APIs Are services or distributed components using encryption? How does an application authenticate to a service?

Integrating SDLC and Security Step 4: Implementation cont.

Functional testing Do you use formal Test Plans or AdHoc? Tied to Requirements? Done by developers and end users? Do Pilot Users test methodically using Test Plans? How do you ensure testing coverage is adequate? SQL Injection testing Browser Compatibility Testing (ex: browser cache) Regression testing

Use Security Checklists / Assessments – code, database, network Test data – “de-identified?” If storage of private data absolutely required, is it encrypted?

Transmission encrypted? Error messages divulge information that can be used by hacker? PCI Compliance scanning/self-assessment passed? HIPAA? Firewalls configured?

Integrating SDLC and Security Step 5,6,7

5. Deployment Create secured test and production environment Helpdesk, Sys Admin, support staff cross-trained? Application security risks Policy issues identified? System and data backups, disaster recovery

6. Operations/Maintenance Repeated “routine” reviews and scanning Change control

7. Decommissioning of Application and Data Retention/preservation of information and data Sanitize media, properly dispose hardware and software

Our Change Control Process

• Coordinate and schedule changes in network, database, applications, OS, firewalls and configurations

– Avoid downtime due to collisions– Avoid accidental security exposures – We use Oracle Calender

• All developers, system and network admins meet every Tuesday morning for at least 15 minutes!

• 2 week notice of all planned changes– Test Plan and checklist required– Identification of required security tasks

• High/low risk identified on all changes• Changes recorded in AdCom ServiceDesk

Security Architecture Governance – Multi-layer

U serIden tity M anagem ent

A u then tica tionE duca tion

N etw ork /W ebA ccoun t A dm in

F irew a lls , E ncryp tionLogg ing/A ud iting

A p plicationA u tho riza tionLogg ing /A ud it

T est T oo ls

D ataA u tho riza tionLogg ing /A ud it

E ncryp tion ,Inven to ry

O p era tio nsB ackups ( inc l o ff-s ite)

Logg ing /A ud itD isaste r R ecove ry

P o licies , S tan d ard s , P ro ced ures , T ech n ica l R efe ren ce A rch itec tu reA pp roved T oo ls and L ifecyc le

E xcep tions by A pp rovalR egu la rly rev iew ed

Security Architecture Lifecycle

Summary of Tools to Try

• Unit Test– Junit for Java, Integrated with Eclipse

• Code Scanning– JTest

• Application/Network/Web Scanning Tools – Foundstone, SiteDigger, AppScan, Nessus

• Load/Stress Test– OpenSTA, JMeter

• Database Scanning– Microsoft Analyzer

• Wiki

Agenda






Q&A

Useful Links• Campus security site: http://www.security.uci.

edu• AdCom's application security checklist:

http://snap.uci.edu/viewXmlFile.jsp?resourceID=1440

• AdCom's Java code review checklist: http://snap.uci.edu/viewXmlFile.jsp?resourceID=1529

• Open Web Application Security Project (OWASP): http://www.owasp.org

need counseling? marrying security and sdlc katya sadovsky application architect, uc irvine

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