Live data from Hacker News

AdaptOver: Persistent DoS and IMSI Extraction from 3.8km away

dl.acm.org

1–7 of 7 posts

Re: AdaptOver: Persistent DoS and IMSI Extraction from 3.8km away

#2
Hi, we‘re happy to present AdaptOver this Thursday in Sydney, Australia at the MOBICOM conference.

We use overshadowing, in particular on the uplink, to create a new set of attacks that turn a legitimate base station into an attacker’s asset.

With AdaptOver, an attacker doesn’t use a fake base station. This marks a new attack paradigm that has to be taken into account when developing and evaluating countermeasures or new protocols.

Happy to answer any questions!

Re: AdaptOver: Persistent DoS and IMSI Extraction from 3.8km away

#3

Hi, we‘re happy to present AdaptOver this Thursday in Sydney, Australia at the MOBICOM conference. We use overshadowing, in particular on the uplink, to create a new set of attacks that turn a legitimate base station into an attacker’s asset. With AdaptOver, an attacker doesn’t use a fake base station. This marks a new attack paradigm that has to be taken into account when developing and evaluating countermeasures or…

No post body was provided.

Re: AdaptOver: Persistent DoS and IMSI Extraction from 3.8km away

#4
post #3

Hi, we‘re happy to present AdaptOver this Thursday in Sydney, Australia at the MOBICOM conference. We use overshadowing, in particular on the uplink, to create a new set of attacks that turn a legitimate base station into an attacker’s asset. With AdaptOver, an attacker doesn’t use a fake base station. This marks a new attack paradigm that has to be taken into account when developing and evaluating countermeasures or…

Quoted post unavailable.

Because they did a hard thing and made it public which strengthens us over the long term?

Re: AdaptOver: Persistent DoS and IMSI Extraction from 3.8km away

#5
post #3

Hi, we‘re happy to present AdaptOver this Thursday in Sydney, Australia at the MOBICOM conference. We use overshadowing, in particular on the uplink, to create a new set of attacks that turn a legitimate base station into an attacker’s asset. With AdaptOver, an attacker doesn’t use a fake base station. This marks a new attack paradigm that has to be taken into account when developing and evaluating countermeasures or…

Quoted post unavailable.

I presume from showing something they've worked hard to discover and research. Even if their work may be used maliciously, it's better to be out in the open so that our communications systems can be made more robust, than to leave it in the dark to be exploited at a later date for nefarious and/or strategic reasons.

For an example, see the bricking of Viasat's satellite internet terminals in and around Ukraine at the onset of the Russian invasion of Ukraine as part of the greater Russo-Ukrainian war[1]. If someone had discovered that vulnerability before, and been "happy" to present it, perhaps it could have been avoided.

This kind of security research into structures and services that millions of people rely on every day is of utmost importance to keep our society safe from malicious actors.

[1]https://www.reuters.com/world/europe/exclusive-us-spy-agency...

Re: AdaptOver: Persistent DoS and IMSI Extraction from 3.8km away

#6

Hi, we‘re happy to present AdaptOver this Thursday in Sydney, Australia at the MOBICOM conference. We use overshadowing, in particular on the uplink, to create a new set of attacks that turn a legitimate base station into an attacker’s asset. With AdaptOver, an attacker doesn’t use a fake base station. This marks a new attack paradigm that has to be taken into account when developing and evaluating countermeasures or…

When you trigger an UE, does it happen from the cellular mobile device or the cell tower? I assume the mobile device.

In either case, I would imagine it requires a directional and high-gain setup to reach 3,8km. Does that not limit the potential of the attack vector on large scale?

Re: AdaptOver: Persistent DoS and IMSI Extraction from 3.8km away

#7
post #6

Hi, we‘re happy to present AdaptOver this Thursday in Sydney, Australia at the MOBICOM conference. We use overshadowing, in particular on the uplink, to create a new set of attacks that turn a legitimate base station into an attacker’s asset. With AdaptOver, an attacker doesn’t use a fake base station. This marks a new attack paradigm that has to be taken into account when developing and evaluating countermeasures or…

When you trigger an UE, does it happen from the cellular mobile device or the cell tower? I assume the mobile device. In either case, I would imagine it requires a directional and high-gain setup to reach 3,8km. Does that not limit the potential of the attack vector on large scale?

The attacks are designed to only require downlink information, so they‘re triggered by the base station.

In fact, this is in practice the only range limitation of the system - wherever the downlink could be decoded, the attack worked.

In the paper you can see that the attack over 3.8km worked with an omnidirectional antenna and required only very little output power.