WPA2 finds itself in a “hole”! Vulnerable to insider attacks!

July 23rd, 2010

WPA2_Hole196Wi-Fi security has experienced a lot of churn over the last decade. As protocols like WEP and TKIP fell by the wayside, WPA2 emerged as the “Last Wi-Fi Security Protocol Standing.” Wi-Fi Alliance recently announced its plan to phase out WEP and TKIP, promoting WPA2 as the go-to security standard.

With solid protection in the form of AES encryption and 802.1x based authentication, there was no reason to look beyond. WPA2 did its job well keeping the bad guys outside, out of the network. And traditionally that has always been the focus of Wi-Fi security.

But…!
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Kaustubh Phanse Wireless security , ,

One fine day in New Delhi

July 7th, 2010

Wireless Security TrainingI am just back from a trip to New Delhi (along with my colleague, Prabhash Dhyani). The weather was quite hot and humid. Amidst flight delays and apparently unstoppable Delhi traffic, we managed to meet up with some interesting folks and exchanged several ideas. You may be wondering what this has got to do with a security blog, hold on, you will soon find out!


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K N Gopinath Wireless security

Goodbye, WEP & TKIP

June 18th, 2010
Ban of WEP & TKIP

Ban of WEP & TKIP

Wi-Fi Alliance has (finally) decided to take some giant steps in improving the state of wireless security. Starting Jan 2011, TKIP will be disallowed on new APs and from 2012, it will be disallowed on all Wi-Fi devices. Come Jan 2013, WEP will not be allowed on new APs and from 2014, WEP will be disallowed on all Wi-Fi devices. This is the good news. But, let us also get to the “bad” news.

 


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K N Gopinath PCI, Wireless scanning, Wireless security , , , , ,

Google or Apple, WiFi spares no one!

June 10th, 2010

iPhone 4 WiFi performance problemLast week we saw Google facing legal tangles for “accidental interception” of WiFi signals and this week it was Apple facing “mysterious disappearance” of WiFi signals during iPhone-4 demo at WWDC keynote. So “what’s going on”, does WiFi not like us any more? Well, because these things struck Eric and Steve, we got to hear about them, but in fact they strike Tom, Dick and Harry everyday.

But there is a way out of this WiFi chaos.
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Hemant Chaskar Wireless scanning, Wireless security , , , ,

Has your data been “Woogled”?!

June 3rd, 2010

Google Street View car gets a ticketThe WiFi snooping row  Google has gotten itself into seems to be far from over. In April, Google revealed that its Street View cars had been collecting basic data such as the MAC addresses and SSIDs of WiFi networks in the vicinity. But after German authorities asked Google to audit the data, it admitted to have been “mistakenly” snooping payload data from Open WiFi networks. Apparently, a piece of WiFi data analysis code, written by Google engineers back in 2006, was part of the software used by the Street View cars, in turn leading to the WiFi snooping (of about 600 GB of data across 30 countries!).
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Kaustubh Phanse Best practices, Wireless scanning, Wireless security , , ,

Wi-Fi Packet Capture Made Easy

May 8th, 2010

Recently, there have been multiple instances of Wi-Fi issues related to iPads. Apple has also acknowledged some of the issues - e.g.,an iPad may not automatically rejoin a known Wi-Fi network on a dual band router . Also, Princeton university has faced serious network problems due to iPad. This has been attributed to a problem in the DHCP client on iPad. Here is an interesting theory on how the IEEE 802.11 Power Save mode may be playing a role in this. The Wall Street Journal reports that such issues have lead to the ban of iPads at several universities. This is a cause for concern. 
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K N Gopinath Wireless security , ,

Wireless Forensics: A Review from RSA Conference 2010

April 30th, 2010

With more enterprises deploying wireless LANs and employee-owned WiFi devices flooding enterprises, wireless LAN forensics is becoming a key component of any network forensic audit — whether to prove compliance with a regulation such as PCI DSS or in response to a security incidence. But wireless presents unique challenges to forensic audits.

Last month, at RSA 2010 conference in San Francisco, I had the oppourtunity to discuss this issue with experienced auditor and certified PCI QSA Jim Cowing. Here you can view the video recording of an abridged version of our RSA 2010 talk “Anatomy of a Forensic Audit: How Wireless Changes the Game.”

RSA2010_webcast

 

Let me summarize the highlights from the talk:
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Kaustubh Phanse Best practices, Compliance, PCI, Wireless scanning, Wireless security , , , ,

Interference combat guide for WiFi networks: Part 1

April 19th, 2010

Non-WiFi interference combat guide-1 thumbnailWe often hear that WiFi network performance degrades due to radio interference. We also hear that interference is a complex beast which cannot be easily tamed. There are two types of interference sources which affect WiFi network performance – non-WiFi sources and WiFi sources. This post provides a guide to some practical steps to combat often cited non-WiFi interference sources such as microwave oven, Bluetooth, baby monitors, cordless phones, wireless cameras and jammers. The WiFi interference sources will be discussed in later post. 

Overall, some awareness of environment around WiFi network coupled with some simple network planning steps can help win over non-WiFi interference to great extent. Additionally, ability to detect high interference levels on WiFi channels helps detect “unmanaged” sources of interference such as jammer or any unknown source. Many WLAN and wireless security systems today have ability to monitor interference levels on channels on 24×7 basis to facilitate such detection.

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Hemant Chaskar Best practices, WLAN planning , , , , , , ,

AirTight satisfies PCI wireless scanning requirement in under 5 minutes

April 1st, 2010

Wireless PCI Compliance in just 5 Minutes

This new product video from AirTight Networks shows how easy it is to automate your wireless PCI vulnerability scanning. AirTight SpectraGuard Online can be configured and running in as little as 5 minutes and 3 easy steps. AirTight eliminates the need to send staff to remote locations with a mobile analyzer to conduct the routine PCI scan for rogue APs. IT professionals should find this refreshing.

Watch AirTight’s wireless PCI scanning video

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Mike Baglietto Compliance, PCI, Wireless scanning, Wireless security

Humpty Dumpty sat on a wall…

March 16th, 2010

False sense of security

Every now and then we run into network administrators and CSOs that brag about how their organization is not vulnerable to wireless security threats, only to see their rash confidence fizzle out once the results from a wireless vulnerability assessment or penetration test are out.

Today, most are aware that Open WiFi on enterprise network is foolish and using WEP encryption is a bad idea and that WPA2/802.1x is the way to go.  Then where do they go wrong?


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Kaustubh Phanse Best practices, Wireless scanning, Wireless security