xp end of support: 5 ways to mitigate risk now

XP End of Support

5 Ways to Mitigate Risk Now 

Paul Zimski

VP, Solution Marketing

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XP End of Support

• Microsoft Windows XP End of Support was April 08, 2014

• No further vulnerability patches will be made available through standard support

• Impact on Compliance» FFIEC guidance – … identify, assess, and manage these risks to

ensure that safety, soundness, and the ability to deliver products and services are not compromised.

» PCI-DSS v3.0 – Ensure that all system components and software are protected from known vulnerabilities ….

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Windows XP Usage

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Windows XP Infection Rates

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Fuzzing Opportunity for Attackers

•New XP vulnerabilities discovered with no patch or configuration work around

•New disclosed vulnerabilities in other Windows products that share common core modules

Ignore

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Plan:• Ignore EOS and Carry On

Pros:• Reduced Cost / Effort

Cons:• Compromise is Eminent• More Expensive Long-Term

Source: http://joshblackman.com/blog/wp-content/uploads/2011/11/bird.jpg

Upgrade

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Plan:• Rip and Replace WinXP

Pros:• Latest & Greatest

Cons:• Hardware Requirements• End User Disruption• Legacy Software Support• Time / Cost / Effort

Isolate

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Plan:• Isolate WinXP boxes

Pros:• Reduced Cost / Effort

Cons:• User Productivity Hit• Physical Attack Vector

Source: http://www.ida.liu.se/~g-robek/images/linguistics-AnechoicChamber_id.jpg

Extend Support

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Plan:• Get Premier Support from

MS for WinXP boxes

Pros:• Push Off Migration

Cons:• Expensive• No Native OS Security

Improvements

Source: http://erstarnews.com/wp-content/uploads/2013/07/stack-of-money.jpg

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5 Practical Defense in Depth Tactics

1. Reduce known exploitable surface area via patch management

2. Harden configurations

3. Reduce zero day threat risk with application whitelisting

4. Protect system memory with native and 3rd party tools

5. Eliminate physical attack vectors by controlling device ports

•Update antivirus•Use desktop firewalls

1) Reduce Exploitable Surface Area

PROPRIETARY & CONFIDENTIAL - NOT FOR PUBLIC DISTRIBUTION

» Ensure known vulnerabilities are patched to minimize “low hanging fruit”

» Apply new 3rd party desktop application patches

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2) Harden Security Configurations

•Remove Local Admin •Disable autorun•Eliminate unnecessary services, applications•Turn off admin shares•Enforce screen lockouts

Malware

3) Reduce Zero Day Threat

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Authorized

• Operating Systems• Business Software

Unauthorized

• Games• iTunes• Shareware• Unlicensed S/W

Applications

Un

-Tru

sted

Known

• Viruses• Worms• Trojans

Unknown

• Viruses• Worms• Trojans• Keyloggers• Spywares

Application Whitelisting

4) Protect System Memory

• The best way to avoid Buffer Overflow Attacks is for software authors to employ secure coding practices

• For known vulnerabilities, its imperative to apply security patches that fix the underlying code.

• For unknown vulnerabilities, there are native protection capabilities that can be enabled in Windows that make it harder to carry out BO attacks» Data Execution Prevention (DEP) - marks unused buffers as “non executable”

•Investigate 3rd party memory protection capabilities from vendors

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5) Eliminate Physical Attack Vectors

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»Centrally enforce usage policies of all endpoint ports and for all removable devices / media.

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Defense-in-Depth Strategy

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Successful risk mitigation starts with a solid vulnerability management foundation, augmented by additional layered defenses which include:

» Configuration Control

» Application Whitelisting

» Memory Protection

» Data Encryption

» Port / Device Control

» Antivirus

Patch and Configuration Management

Application ControlMemory Protection

DeviceControl

AV/FW

Hard Drive andMedia Encryption

More Information

Surviving WinXP EOShttps://www.lumension.com/windows-xp

» Whitepaper – learn how to stay secure before, during and after your migration

» Free Application Scanner – discover all the apps being used in your network

Whitepapers» NSS Labs – Improving Windows Client

Performance and Security: Impact Comparison of AC and Traditional AV https://www.lumension.com/resources/free-content/improving-windows-client-performance-and-security.aspx

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Get a Free Trial ofLumension Application Controlhttps://www.lumension.com/application-control-software/free-trial.aspx

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