Major Flaw in Wi-Fi Protected Access Discovered

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The now widely used Wi-Fi Protected Access (WPA) standard is apparently not as protected as router makers had hoped. According to a new study, the PIN codes used to lock down the system can be brute forced on many devices by inputting incorrect PIN codes. Millions of routers and access points could be affected.

Read more at:
Maximum PC | Major Flaw in Wi-Fi Protected Access Discovered
 

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I was just reading about that

Summary: You know that easy to setup Wi-Fi access point or router of yours? It turns out that the easy to setup part is also easy to hack: Really easy to hack.
ZDNet
Wi-Fi Protected Setup is Busted | ZDNet

I've never trusted wireless. ;)
 

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hmmm
nsvander said ....

December 28, 2011 at 3:19pm
I actually just clicked the link, and you have the wrong terminology. You are confusing Wi-Fi Protected Access with Wi-Fi Protected Setup, the two are totally different.
 

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I remember a Japanese guy saying well over a year ago that he would be able to crack WAP protection within two minutes using cracking software he'd developed on the very same principles, I'm sure it was published on El-Reg's website at the time...
 

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hmmm
nsvander said ....

December 28, 2011 at 3:19pm
I actually just clicked the link, and you have the wrong terminology. You are confusing Wi-Fi Protected Access with Wi-Fi Protected Setup, the two are totally different.

I think that error has been fixed.

Since my wireless networking classes, I've always thought that the WPS (Easy Setup) was a disaster waiting to happen.

WPA-TKIP (Encryption) has been cracked.
http://en.wikipedia.org/wiki/Wi-Fi_Protected_Access#Security_and_insecurity_in_pre-shared_key_mode
http://en.wikipedia.org/wiki/Temporal_Key_Integrity_Protocol#Security
 
Last edited:

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You should read the links you post before commenting.
 

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You should read the links you post before commenting.

Sorry?
I think that the links make it clear that WPS and WPA-TKIP are now vulnerable.

WPS (Easy Setup) can be broken by a "brute force" attack.
http://sviehb.files.wordpress.com/2011/12/viehboeck_wps.pdf

WPA-TKIP (Encryption) has been broken by at least two different groups of researchers (and a "blogger").
Another dozen used WPA (Wi-Fi Protected Access), with the built-in Temporal Key Integrity Protocol (TKIP) security protocol. There, I used a rainbow table, a list of the most common WPA passwords, to pop open APs almost as quickly as I could open up a coke bottle. I also managed to pry open a pair of routers using WPA2 (Wi-Fi Protected Access 2) with TKIP using rainbow table.
ZDNet
Firesheep’s Real Lesson: Take Wi-Fi Security Seriously | ZDNet
 
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So is AES still decent, or has it been broken too/
 

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CCMP (AES) is still good

So is AES still decent, or has it been broken too/

Currently AES is "still standing".
Who knows for how long though. ;)

If you really want to secure a Wi-Fi network in 2010 you must use WPA2 with Counter Mode with Cipher Block Chaining Message Authentication Code Protocol (CCMP), aka Advanced Encryption Standard (AES).
ZDNet
Firesheep’s Real Lesson: Take Wi-Fi Security Seriously | ZDNet


The authors say that the attack can be defeated by deactivating QoS, or by switching from TKIP to AES-based CCMP.
Wikipedia
Wi-Fi Protected Access - Wikipedia, the free encyclopedia
 

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I'm a little confoosed... what I'm seeing in the news concerns the weakness of the WPS PIN for assigning a security key across wireless devices from a router which is WPS equipped.

Many months ago there were claims of WEP security being crackable.

Most of us know to use stronger methods of encryption.

The present issue appears to relate uniquely to WPS and the PIN number generated as being vulnerable.

Wi-Fi Protected Setup easily unlocked by security flaw ? The Register
 

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That's correct

I'm a little confoosed... what I'm seeing in the news concerns the weakness of the WPS PIN for assigning a security key across wireless devices from a router which is WPS equipped.

Many months ago there were claims of WEP security being crackable.

Most of us know to use stronger methods of encryption.

The present issue appears to relate uniquely to WPS and the PIN number generated as being vulnerable.

Wi-Fi Protected Setup easily unlocked by security flaw ? The Register


From the pdf I linked to above (edited)
WPS Broken 2.png WPS Broken.png
PIN-based WPS (Easy Setup) is vulnerable to a "brute force" attack.


These security methods (access control and data encryption) are also broken/ineffective:

  • SSID Hiding.
  • MAC Filtering.
  • WEP.
  • WPA-TKIP.
Only CCMP (AES) is still considered secure.


It seems like almost everything related to wireless security/setup is:


  • Broken.
  • Defective.
  • Ineffective.
  • Poorly designed/implemented.
 

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why not just set the set up to MANUAL in the router . problem fixed ? Or is that too simple ?
 

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All the more reason for a router that hides a VLAN without a WPS configuration... ;)
 

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It seems like almost everything related to wireless security/setup is:

  • Broken.
  • Defective.
  • Ineffective.
  • Poorly designed/implemented.
While I'd argue the converse - all of the specs are basically open and documented, and everything is (ultimately) in the clear rather than over a wire, making security a moving target rather than something to be considered forever and unchanging. Wireless should be a combination of security - as secure a cipher and password as your router and devices that attach can all handle (and preferably one not automatically generated from a password or hash, but manually entered), some sort of device filtering, and network security at the OS networking level in addition to the wireless encryption (like IPSEC between hosts). As with anything, the only way to be truly secure is to not connect to a network - once you do, you do your best, be vigilant, and take your chances. And to those that don't, they run that risk of ending up getting hacked in some way, and there's not a whole lot you can do about or for them at that point either.
 

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The trouble is ...

why not just set the set up to MANUAL in the router . problem fixed ? Or is that too simple ?
All the more reason for a router that hides a VLAN without a WPS configuration... ;)

That might be easy enough for us to do, but we aren't the people that WPS (Easy Setup) was aimed at.
The ordinary user would be completely baffled (if not terrified) by the idea of "screwing" with the settings.

Ordinary computer users could do it if someone walked them through it though.

While I'd argue the converse - all of the specs are basically open and documented, and everything is (ultimately) in the clear rather than over a wire, making security a moving target rather than something to be considered forever and unchanging. Wireless should be a combination of security - as secure a cipher and password as your router and devices that attach can all handle (and preferably one not automatically generated from a password or hash, but manually entered), some sort of device filtering, and network security at the OS networking level in addition to the wireless encryption (like IPSEC between hosts). As with anything, the only way to be truly secure is to not connect to a network - once you do, you do your best, be vigilant, and take your chances. And to those that don't, they run that risk of ending up getting hacked in some way, and there's not a whole lot you can do about or for them at that point either.

It is fair enough that security systems fail, when attacked by innovative strategies.
The trouble is security systems are still falling to ancient attack strategies.

Remember the "War Games" movie (1983)?
The kid hacked into a military super computer (via the telephone system) using a "brute force" attack!
Hollywood didn't invent the concept, it was based on reported real life incidents.
Why are systems still falling to that type of attack 29 (or more) years later (WPS)?

I'm always reading comments blaming wireless users, when their privacy/security is compromised.
Now we discover that even if the user was doing the right thing, it was futile, because the system designers and manufacturers screwed up. :shock:

Some of the problems are due to the improvements in computer technology though.

How many times more powerful is a modern PC, compared to the original PC?

There was a time, when the idea of someone cracking a 128-bit encryption key (in a short time) was laughable.
Now 2048-bit is considered barely adequate.
It probably won't be too long, before 2048-bit encryption is considered a joke. :geek:
 
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No matter how secure you make something, someone, somewhere, is going to find a way around it, be it on purpose or by accident. That's been proven multiple times in the last few years & you can bet that it's going to continue.

BTW, if you have a Netgear router & you updated to the latest firmware version (V1.1.1.58), there is a major flaw in that. Anyone behind the router can now login to the router WITHOUT a password, and this flaw extends to the wi fi aspect of it. They've been informed of this little glitch, but have yet to fix it. If you upgraded, best to re-install the old firmware.
 

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Graphics Card(s)
ATI Radeon HD 4350
Monitor(s) Displays
24" HDTV/Monitor
Screen Resolution
Blurry after a Scotch or 2
Hard Drives
1 HDD 250 GB, 1 HDD 1 TB, 3 - 1 TB Externals
Case
Don't get on my case...man :D
Cooling
I have an Air Conditioner & Diet Pepsi
Keyboard
Saitek Cyborg
Mouse
10 yr old MS optical mouse that still works
Internet Speed
Never fast enough
Antivirus
Various
Browser
Various
Anyone behind the router can now login to the router WITHOUT a password, and this flaw extends to the wi fi aspect of it. They've been informed of this little glitch, but have yet to fix it. If you upgraded, best to re-install the old firmware.

I sincerely hope you mean LAN side only... :eek:
 

My Computer My Computer

At a glance

W7 x64Intel Q9300 2.5Ghz Quad LGA775 (Would like Q9...4Gb OCZ Gold 1,333MhzPalit HD4850 O/C Sonic 512Mb DDR3, Dual DViD's
Computer Manufacturer/Model Number
Custom built machine
OS
W7 x64
CPU
Intel Q9300 2.5Ghz Quad LGA775 (Would like Q9650)
Motherboard
Gigabyte GA-EP45T-UD3R (F6 Bios)
Memory
4Gb OCZ Gold 1,333Mhz
Graphics Card(s)
Palit HD4850 O/C Sonic 512Mb DDR3, Dual DViD's
Sound Card
Azalia to twin Samson 50w Studio Monitors
Monitor(s) Displays
Twin Dell (E-IPS) U2311H 23.6" Screens
Screen Resolution
1920 x 1080 @ 60Hz
Hard Drives
Crucial M4 SSD, archives on twin Western Digital Caviar Black WD2002FAEX, 2TB, 7200rpm HDD's, Samsung Ritemaster CD/DVD Burner...
PSU
OCZ 600w
Case
Lian-Li PC8 acoustifoamed' aluminium tower
Cooling
Scythe 140mm Zipang
Keyboard
Cherry PS/2 custom model
Mouse
Lenovo USB laser "Thinkpad" Mouse
Internet Speed
ADSL2+ @14Mbps downstream & Cat6 Gigabit Ethernet
Antivirus
NOD32
Browser
Opera
Other Info
Silicon Dust HD Homerun Dual FTA (Ethernet) TV Tuners, Dray Tek Vigor 2850Vn router and 8x HP Gigabit Switch. Lian-Li CR26 Card Reader, Canon MF4430 iSensys laser printer/scanner.
There was a time, when the idea of someone cracking a 128-bit encryption key (in a short time) was laughable.
Now 2048-bit is considered barely adequate.
It probably won't be too long, before 2048-bit encryption is considered a joke. :geek:

Just a small FYI on this one.

128 is still (currently) secure and refers to private key encryption like what is used on WiFi.

The 2048 bit keys are for public key encryption (like you would add to an email if you wanted someone to send you back something encrypted) and contain a lot more information to make the "public" process work so it isn't really that meaningful as a stand alone bit length number.

I do agree that most of the WiFi problems have been from very poor and untested implementations foisted on the public. Combined with ridiculous regulations imposed by governments that fear encryption use even over a distance of 20 feet. But most of the problems have been from piss poor design and implementations of things that should have been taken seriously from the start.
 

My Computer My Computer

At a glance

Windows 7 x64 Ultimatei7 96012 Gig Corsair DominatorNvidia 480
Computer Manufacturer/Model Number
Scratch built
OS
Windows 7 x64 Ultimate
CPU
i7 960
Motherboard
Asus P6X58D
Memory
12 Gig Corsair Dominator
Graphics Card(s)
Nvidia 480
Sound Card
Maudio Delta 44 + breakout box
Monitor(s) Displays
Dell UltraSharp U2410 24in and Samsung 21 dual monitors
Screen Resolution
1920x1200 and 1280x1024
Hard Drives
Primary: Intel X-25M G2 160G SSD
Secondary: Segate baracuda 1.0 TB
HDs in AHCI mode.
PSU
Corasair TX850
Case
Cooler Master HAF
Cooling
Corsair H50
Keyboard
Logitech G15 + N52 game pad
Mouse
Logitech MX518
Internet Speed
15kbs down 4.5kbps up
Other Info
WEI 7.6
CPU & RAM 7.6
Graphics 7.9
Hard disk 7.7
Fair enough

There was a time, when the idea of someone cracking a 128-bit encryption key (in a short time) was laughable.
Now 2048-bit is considered barely adequate.
It probably won't be too long, before 2048-bit encryption is considered a joke. :geek:

Just a small FYI on this one.

128 is still (currently) secure and refers to private key encryption like what is used on WiFi.

You mean CCMP(AES)?
Sure (unless there is some implementation flaw).

My bad.
I wasn't specifically refering to CCMP(AES).
I meant bit length in general (more bits = more secure).

I still think that it will only be a few years before 128-bit will have to be replaced.
"Botnets", "Grid Computing" and "Moore's Law" basically guarantee it. :(

Hashes were considered to be reasonably secure.
Now GPUs can smash them (i.e. create a password that matches a given hash) in a very short time (if you can get access to the hash file).
Cheap GPUs are rendering strong passwords useless | ZDNet

The 2048 bit keys are for public key encryption (like you would add to an email if you wanted someone to send you back something encrypted) and contain a lot more information to make the "public" process work so it isn't really that meaningful as a stand alone bit length number.

Presumably 2048-bit isn't impossible to crack even now.

On my networking course, when we set up the procedure (you mentioned above) Linux offered us 4096-bit as an option.
We were specifically told that it is illegal for us to use that level of encryption, because the Government wants to be able to read your secret data.

I do agree that most of the WiFi problems have been from very poor and untested implementations foisted on the public. Combined with ridiculous regulations imposed by governments that fear encryption use even over a distance of 20 feet. But most of the problems have been from piss poor design and implementations of things that should have been taken seriously from the start.

Agreed.
The "Brute Force" issue reminds me of "Buffer Overflow" errors/exploits.
These problems have been known for years and yet they still keep happening. :confused:
 

My Computer My Computer

At a glance

W7 Ultimate SP1, LM19.2 MATE, W10 Home 1703, ...AMD Phenom II x6 1100T, 3.3 GHz12GB DDR3 1333 G-Skill (4GB x 2), G-Skill (2G...NVIDIA GeForce GTX 660
Computer type
PC/Desktop
Computer Manufacturer/Model Number
n/a
OS
W7 Ultimate SP1, LM19.2 MATE, W10 Home 1703, W10 Pro 1703 VM, #All 64 bit
CPU
AMD Phenom II x6 1100T, 3.3 GHz
Motherboard
ASUS M4A88T-M/USB3 (AM3)
Memory
12GB DDR3 1333 G-Skill (4GB x 2), G-Skill (2GB x 2)
Graphics Card(s)
NVIDIA GeForce GTX 660
Sound Card
Realtek?
Monitor(s) Displays
Samsung S23B350
Screen Resolution
1920x1080
Hard Drives
WD Green 2TB (SATA), WD Green 3TB (SATA), WD Blue 4TB (SATA), WD Blue 6TB (SATA)
PSU
Cooler Master
Case
Antec GX300 Tower
Cooling
3x Antec TRICOOL 120mm Fans
Mouse
Wired Optical
Internet Speed
DSL
Antivirus
Avast
Browser
Pale Moon (64 bit)
Other Info
2018-12-27 Upgraded HDDs
2015-12-10 Upgraded case, graphics card, storage
2015-08-15 Upgraded motherboard & RAM
2015-07-15 Upgraded LM17.1 to LM17.2
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