OpenSSL

MobileIron and Good confirm invulnerability to "Heartbleed" OpenSSL attack (updated with more providers)

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We've been following the recent disclosure of a massive OpenSSL bug and its affect on MDM. This is a potentially major issue for device management. Due to the trust chain of Apple's APNS, an exposed MDM server may require all devices to be unenrolled and reenrolled by hand.

We've heard good news so far (excuse the pun) from two three four providers:

Good Technology says:

Good Technology has confirmed that the versions of OpenSSL used by all Good servers and applications are not subject to the Heartbleed vulnerability.

MobileIron says (courtesy of EnterpriseiOS user MaciekSA):

  • All released versions of VSP, Sentry, Connector, Atlas, Connected Cloud and cloud-hosted BYOD portal are NOT affected by the vulnerability and NO action is required by our customers.
  • The on-premise BYOD Portal MAY by affected by the vulnerability, depending on the version of OpenSSL that is packaged with your version of Linux currently installed on your BYOD Portal server.

Update 4/10 5:50p: Maas360 is also fine.

Update 4/10 10:43p: AirWatch is also unaffected. See this VMWare KB article.

Update 4/11 4:02a: TARMAC is also unaffected. See this notice in German.

Update 4/14 2:25p: SOTI is also unaffected. See this notice.

I've reached out to other vendors but have not yet heard a response. If you have any news please share below, and I will update the thread.

It is worth repeating that the vulnerability is not the fault of the MDM vendor and not the fault of Apple. It's in a library of cryptographic functions that is very commonly used within other applications.

How bad is the OpenSSL "Heartbleed" vulnerability for MDM?

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Yesterday a vulnerability came to light in OpenSSL, which underpins much of the security infrastructure on web servers and application servers around the Internet. Today the technology world is on fire about the bug. Basically, any server running OpenSSL versions 1.0.1 through 1.0.1f is at risk to a simple query. There is an online tool available to check your servers.

The bug, however, doesn't only affect SSL. OpenSSL is also commonly used for generating the asymmetric encryption keys that are the foundation of, oh, the Apple Push Notification Service. And APNS is the foundation for MDM.

If your MDM service happens to be vulnerable, or was vulnerable any time in the last two years the bug has been available, then it is possible someone has stolen your server's private APNS key. And if they do that then your MDM is compromised. But since the attack leaves no trace, well it may be better to err on the safe side.

The "safe side" for MDM means revoking your APNS certificate, and re-enrolling all devices. By hand. That is going to be a huge a bucket of pain.

So here is hoping your particular MDM service is not and was not vulnerable. I've heard from a few already, but will wait for official statements to become available before posting. Watch this thread for more as this develops.

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