Archive for the ‘Apple’ Category.

Unisys and the iPhone

Have you read this Apple profile on Unisys’ use of the iPhone.

“A wide range of aspects give us confidence that iPhone is a secure device.”

Tip Underwood, Vice President of Sales and Management Support

 I wonder if they still have that confidence after reading about the Zdziarski Method.  or PIN bypass.  The PIN bypass may be fixed in version 4.   Then there is the issue of Apple patching haphazardly, for example the desktop Safari gets patched but the phone lags.  Then there is the issue of patch management on a iPhone.  

It worries me.   That’s why we’ve been fighting iPhone ActiveSync for ever and are looking at Good to see if that might be more secure.

SEP 11.0.6

Symantec Endpoint Protection 11.0.6 is available on fileconnect. The release notes are here.
Release Highlights

•”Symantec Protection Center v1.0″ introduces a centralized management console with single sign-on to integrated Symantec applications including Endpoint Protection, Brightmail Gateway, Data Loss Prevention, Web Gateway, Critical System Protection, and IT Analytics
•”SEP Manager Web Console” delivers web-based access to SEP Manager in addition to the legacy JAVA console
•”SEP for Mac” provides integrated management and reporting of Mac and Windows clients in the SEP Manager
•Randomizing scan start time improves support for clients in virtualized environments
•The Symantec Endpoint Recovery Tool allows customers to scan and remove malware from client computers that the SEP client is unable to remediate effectively
•Enhanced default Antivirus and Antispyware security settings make SEP more efficient at detecting malware
•Includes over 155 customer reported defects

One of the defects may be one I’ve had a case open on for more than a year.
Auto Location Switching does not recognize 144 Mb/sec 802.11n connections
Fix ID: 1927272
Symptom: Auto Location Switching does not switch a client to a 144Mbs wireless connection
Solution: Added support for a 144Mbps wireless connection.
I’m hopeful that this will solve the location awareness issues when 802.11n is used. I’ve been told that wouldn’t be fixed until RU6MP1. But we’ll see what this does.
Another writeup of on the release is here.

iPhone (in)security in the enterprise – Followup

Back in November I wrote a summary of several concerns we have about the iPhone in the enterprise.
Four months later lets take a look at see what’s changed.
One of the other guys at work took that list of concerns to our AT&T rep, who then took them to a unnamed, untitled Apple contact. Next they ran it the questions by the magic 8 ball. The responses are below.
Problem 1: Encryption and PIN bypasses reported at iPhoneinsecurity.com
Apple’s Response:
We take iPhone security very seriously and have made consistent improvements in all areas.For example, in the most recent iPhone 3.1.3 update we made the changes detailed in the following KB – http://support.apple.com/kb/HT4013 One to highlight is CVE-ID: CVE-2010-0038 related to recovery mode. This is a big improvement to thwart those who are using tools to modify the iPhone software.
That doesn’t really answer the question though. Is the encryption bypass which Zdziarski is only talking to law enforcement about fixed or not? Due to the lack of public disclosure there is no way to know. Zdziarski does mention using recovery mode so it is possible that the attack is patched. But I dont give the benefit of the doubt to non-disclosers.
I suppose some would argue that the evil maid attack allows bypass of Full Disk Encryption on computers so I shouldn’t have my data there either. Of course using a smart card or bitlocker with TPM I could protect myself from this attack.
The evil maid attack requires an attacker to have physical access to the device. Then I log in. The the maid returns to harvest the results. The iPhone encryption bypass can occur when you leave the iPhone unattended for a few minutes. I dont think that is comparable.
2. iphoneinsecurity shows a password bypass in addition to the encryption bypass.
Apple’s” response indicates that the enterprise passcode policy is completely different than the consumer four diget pin and thus not vulnerable. I’m not sure I’m buying that.
3. Lack of Centralized Config Management
Apple’s Response indicates that its possible to force the iphone to have enterprises configuration in order to be able to connect in order to connect to the enterprise. I’m not sure exactly how that is supposed to be done.
Further Apple claims that the iPhone is more secure than the Blackberry because its Unix. Its also more secure because you can only run one application at a time and every app is approved by Apple. lolz.
4. Patching
With the BES we can deploy them as forced updates over the air.
Apple’s Response:
We (Apple) don’t view them as patches, but as major, free OS upgrades and updates..a typical OS update for us is 200-300 meg ( very unwieldy to do OTA) and is packed with useful new features , security upgrades, OS enhancements, etc…
“we dont view them as patches”. Sorry, I didn’t read the rest. Laughing too hard.
5. iTunes
Apple Responded that its best practice to not supply full itunes to everyone. Apparently there is some way to skinny down itunes so its basically a sync software.
6. App Store
This issue goes back to is this a business device or not. Are the users going to have the device on their Apple account and take the applications with them or what?
Apple’s response was basically, yes the user takes the app with them when they leave the company even though the company bought the app.
7. Jailbroken phones maybe less secure.
Apple’s response is dont let jailbroken phones connect to the network. No word on how to do that. Authentication alone doesn’t do that. Is ActiveSync going to check for that? I think not.
8. Repeaters. This is more an ATT issue. If we buy X iphone’s can we get repeaters for free.

Unicorn sighting

A few weeks ago my officemate posted to Facebook,

I’ve just been told by two different Mac Geniuses that installing an antivirus software could actually make the Mac computer less secure. Unfortunately, both were phone conversations because I’m almost certain they were doing the Jedi mind trick hand motions.

  As I read that, I figured this was Mac users in our company fighting our policy requiring antivirus for Macs. Certainly antivirus can slow a system. And any software can have vulnerabilities. But this wasn’t about that. No this was actual honest to god responses from Apple support. My officemate wanted to know if this was official policy. So he asked for it in writing. That got him escalated to the next level where he was apologetically told it was not Apple’s policy that antivirus is not necessary.

I thought of this today as Graham Cluley tweeted links to a couple of video blogs from last year. Unicorns have been spotted, Malware for the Mac does exist. Now to be fair these examples are largely social engineering. Just because it’s not a zero day doesn’t mean the systems isn’t owned. Fake Codecs and Fake anti-maiware aren’t the exclusive providence of Microsoft Operating Systems.

  

 

iPhone (in)security in the enterprise

Just when you thought you’d successfully killed it off, its back. The email from management who is getting pressure from the c levels asking why the iPhone isn’t supported. It comes in on schedule every two month.
“iPhone version 3.1 has solved all the security problems, right?”
Um, no.
“There is now a Wolfram Alpha app for the iPhone. This would really help our business development”
Are you serious?
Who can blame them. Apple and their willing co-conspirators in the tech media have been repeating the mantra. “iPhone 3GS is secure for the enterprise.” Secure or not companies are adopting the iPhone, even to the point of allowing personal devices. Lets summarize what we know and what we dont know about the
Problem 1: Encryption
It is of critical importance to protect data privacy through encryption. iphoneinsecurity.com, a site dedicated to iphone forensics has posted video demonstrating the bypass of the iPhone 3GS encryption.
I suppose some would argue that the evil maid attack allows bypass of Full Disk Encryption on computers so I shouldn’t have my data there either. Of course using a smart card or bitlocker with TPM I could protect myself from this attack.
Problem 2: passcode bypass
The passcode on a iPhone is bypassable
Problem 3: Lack of Central Config Management
Enterprises are used to controlling phone configuration centrally a la through a Blackberry Enterprise Server. iPhones configuration is sort of voluntary. TrustDigital would say they solve that issue. I need to talk with them (again) because I think they can enforce a configuration at the time the iPhone connects to the server, but I dont think they have a permanent enforcement agent. Could be wrong.
Problem 4: patching
While patches can be pushed from the BES, iPhone users need to install each patch individually through iTunes
Problem 5: iTunes
Speaking of iTunes, that isn’t exactly a corporate type product. What if we dont want that on our computers. RIM has worked to make Blackberry work without installing any desktop software in a BES environment.
Problem 6: App Store
Whose account is used in iTunes? Do they use their personal account? In that case the end user really owns any applications purchased by the corporation on that account. When the employee terminates they would essentially walk out with the applications the company owns. If a corporate account is created then the opposite problem occurs.
Problem 7: Jailbroken phones
Jailbroken phones are susceptible to security problems. Besides the ikee worm, they allow unapproved applications to be run, bypassing Apple’s whitelisting security model. How can an enterprise prevent jail broken phones from being used?
Problem 8: Repeaters
Like a lot of company headquarters, ours is like a unintentional Faraday Cage. We’ve had to put up repeaters for Verizon and Nextel. Are we supposed to pony up and install AT&T repeaters?
While the iPhone remains exceedingly popular, it still has Apple’s consumer mindset at the core. (sorry bad pun) At least at our company I dont see it making headway until the encryption issue is solved. Then I’ll talk with TrustDigital again about their management solution.
update
The day I posted this I got emailed an announcement of Good Technology’s support for the iPhone. Good uses their own application and would keep the corporate email encrypted in that. However any other corporate data that made its way on to there wouldn’t be protected. In an era of cutbacks its hard to provide support for both Good and Blackberry.
Commenters have pointed out that the iPhone still does not support S/MIME or PGP. I had thought to check on that but it didn’t make the article. S/MIME support is mandatory for my company.

Apple Innovations

I usually skip over the Mac versus PC adds, but due to the hazards of watching football live I caught one today.
It was about the hardware innovations of the Mac. Kind of silly since last time I checked my hardware was from Dell not from Microsoft.
How about Macs software innovations. Apple went all out with XProtect in Snow Leopard.
Here is Sophos’ writeup

When files are downloaded through the following applications:

  • Entourage
  • Safari
  • Mail
  • Firefox
  • Thunderbird
  • iChat
  • and other programs that use LSQuarantine
    XProtect is invoked.
    Unfortunately, if variants of these threats find their way on to your system via an application that doesn’t set the com.apple.quarantine extended attribute, for example via:
    Skype
    Adium
    BitTorrent
    and Finder (via USB keys, network share, etc …)
    Then you’re sort of out of luck.

- source: Sophos
But hey, you’re not missing that much anyway. This “feature” only scans for the hash of 2 Mac trojans according ZDnet’s Zero Day blog.
Now that is innovation.