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5G Cell Site Analysis (Positioning)

Discussion of forensic issues related to all types of mobile phones and underlying technologies (GSM, GPRS, UMTS/3G, HSDPA, LTE, Bluetooth etc.)
Subforums: Mobile Telephone Case Law
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TinyBrain
Senior Member
 

Re: 5G Cell Site Analysis (Positioning)

Post Posted: Apr 13, 19 01:14

Have to learn the paging in 5G for CSA as the TorPEDO attack has an influence on (unknown) Fake Cell Towers in CSA positioning.

#1 My question: Can anybody explain to me the paging in general, its effect on CSA?
#2 Is it important to differentiate between direct and indirect paging in 5G?
#3 Is there a risk of sofrware definded radio paging multi (unaware) Fake Cell Towers?

There is a risk that unaware Fake Cell Towers mismatch a CSA (as its a non-physical/non-proofable approach). I still cannot dive through the crypto key exchange in such an approach.

Any Crypto forensic examiner in the wild?  
 
  

trewmte
Senior Member
 

Re: 5G Cell Site Analysis (Positioning)

Post Posted: Apr 13, 19 09:32

For those that haven't caught up on the TorPEDO news here are some links.....

thehackernews.com/2019...chers.html
www.helpnetsecurity.co...-networks/
www.securitynewspaper....-networks/
threatpost.com/torpedo...5g/142174/
securityaffairs.co/wor...4g-5g.html

And here is the link to the research paper that originated the current web discussions..

www.ndss-symposium.org..._paper.pdf
_________________
Institute for Digital Forensics (IDF) - www.linkedin.com/groups/2436720
Mobile Telephone Examination Board (MTEB) - www.linkedin.com/groups/141739
Universal Network Investigations - www.linkedin.com/groups/13536130
Mobile Telephone Evidence & Forensics trewmte.blogspot.com 
 
  

TinyBrain
Senior Member
 

Re: 5G Cell Site Analysis (Positioning)

Post Posted: Apr 16, 19 05:26

Does a mobile recognize if a paging regquest is delayed from genuine source in comparison to a paging request from a fake cell tower?  
 
  

TinyBrain
Senior Member
 

Re: 5G Cell Site Analysis (Positioning)

Post Posted: Apr 16, 19 23:28

The paging runs on PCH Paging CHannel of the physical layer (L1). It seems that a UE cannot detect if after being out of range of a tracking area that it gets paged by a FBS.

Is paging in 5G different from LTE related to crypto?  
 
  

TinyBrain
Senior Member
 

Re: 5G Cell Site Analysis (Positioning)

Post Posted: Apr 19, 19 03:33

Can anybody explain how the PCCH and the PCH interwork in 5G?  
 

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