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Security: Apple 'Back Door', Michał Górny on OpenPGP, 'IoT' (in)Security and More

Submitted by Roy Schestowitz on Friday 1st of February 2019 04:18:15 AM Filed under
Security
  • A Teenager Tried To Warn Apple About It's Facetime Security Flaw, But Appears To Have Been Ignored

    By now, you've almost certainly heard about the latest big technology security flaw, in which Apple's FaceTime feature contains a bug that allows a caller using FaceTime to hear through the recipeient's phone while the call was still ringing. This obviously has all kinds of people all kinds of freaked out, since the bug essentially turns any iPhone into a short-burst surveillance bug. This has led some to opine that Apple, which has a fairly decent reputation from a privacy standpoint, is at risk of having that reputation torpedoed over this story.

    And that might be all the more the case when the public discovers that Apple was informed of this bug by a teenager and his mother in the weeks running up to the press coverage of it, and did nothing about it.

  • Evolution: UID trust extrapolation attack on OpenPGP signatures

    This article describes the UI deficiency of Evolution mail client that extrapolates the trust of one of OpenPGP key UIDs into the key itself, and reports it along with the (potentially untrusted) primary UID. This creates the possibility of tricking the user into trusting a phished mail via adding a forged UID to a key that has a previously trusted UID.

  • IoT Security, DRM and user freedom

    All of these boil down to the same root cause; without effective DRM there is no way to protect devices from physical attacks. That can be as simple as having only internal flash and being able to blow a set of EFUSEs to prevent readout/debug interfaces functioning, or it can be a full built in boot ROM with cryptographic verification of an image pulled in from external flash (potentially encrypted) and the building up of a chain of trust. I see 2 main problems with this.

    Firstly, getting security like this right is hard. Games console manufacturers are constantly trying to protect their devices against unauthorised code running, and while they seem to be getting better it’s taken quite a number of mistakes to get there. They have a much bigger financial imperative to get this right, as console DRM attacks are frequently used for piracy. An IoT vendor could end up adding significant cost to their BoM if they have to buy a more advanced chip to be able to do the appropriate end-to-end flash encryption required. (The LIFX is using the ESP32, which does have some of these features that are not present in the more basic (and cheaper) ESP8266. I’ve no idea if anyone has done a full analysis of the ESP32 security.)

  • Tech Refresh as Part of an Effective Vulnerability Management Program: Part One
»

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