Questions tagged [freeradius]

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17 votes
1 answer
6k views

How can Freeradius detect if the password provided is right when only the salted hash is stored in the database without the salt

I am discovering both Freeradius and the password hashing mechanism. I built a database (in MySQL) to store the passwords of some users. I have a user with the password in clear text, another one ...
molik's user avatar
  • 173
2 votes
2 answers
282 views

WPA(2/3)-PSK-compatible per-device Wi-Fi passwords to prevent AP MITM on IoT networks

While WPA2-PSK and WPA3-SAE are really secure once a connection has been established, my understanding is that if you have access to the Wi-Fi password you can impersonate the AP without any problems. ...
Facundo's user avatar
  • 61
1 vote
2 answers
8k views

What can I do with a radius shared secret?

During an authorized pentest, I found several radius servers and a /etc/raddb/server file that stores shared secret, e.g 10.10.10.10 123456 15 Now what could one do with this "shared secret", ...
daisy's user avatar
  • 1,755
1 vote
1 answer
1k views

How to protect against MAC spoofing in WiFi network?

I have this scenario: I want to create a WiFi network for a hotel that the customers should pay to gain access to the internet. I tried Captive portal, but captive portal is very vulnerable against ...
Amir Sabeghi's user avatar
1 vote
1 answer
5k views

Freeradius eap-tls - unknown CA

I'm trying to setup an EAP-TLS with latest Freeradius on Debian Buster Used the Freeradius to make certificates But keep running into "unknown CA" error : (4) Found Auth-Type = eap (4) # Executing ...
azurtem's user avatar
  • 21
1 vote
1 answer
12k views

How are RADIUS packets encrypted? [duplicate]

This seems like an obvious question, but I can't easily find a clear answer. I'm setting up a FreeRADIUS server on my LAN just for curiosity's sake, but I want to know if the packets are encrypted at ...
Tim Morris's user avatar
1 vote
1 answer
4k views

OpenVPN using google authenticator

I'm a little new to OpenVPN. I'm trying to get google authenticator to work with OpenVPN but I'm having a little trouble. Currently I'm tring to setup a radius server to run the authentication then ...
Anthony Fortner's user avatar
1 vote
1 answer
2k views

Security concerns of RADIUS based server/workstation auth

So I'm using WPA2-EAP for a few years now with FreeRadius server. And it's pretty okay, I mean I don't really consider wifi access to be so super-duper critical break in success because it's pretty ...
Lapsio's user avatar
  • 217
0 votes
1 answer
1k views

Break into WPA2-Enterprise RADIUS wifi network by stealing credentials

I need to ensure that no un-authorized DEVICE gains access to a wireless LAN network. Notice I said, "device". This means that I need to ensure that only authorized personnel can join the LAN and ...
user162881's user avatar
0 votes
1 answer
486 views

Are there other types of NT Password (NTLM Hash) besides raw MD4?

According to the freeradius document https://freeradius.org/radiusd/man/rlm_pap.txt I can use NT-Password as the type of storing user's password. However, I have only found the type of generating raw ...
Steven Yang's user avatar
0 votes
0 answers
8 views

Ubuntu 22.04 LTS: EAP-TLS not working [migrated]

I'm setting up RADIUS server using FreeRADIUS and self-signed certificate. Tested using eapol_test and successfully logged in. But when I'm trying to add a PC running Ubuntu 22.04 LTS to the network, ...
RichardLiu's user avatar
0 votes
1 answer
97 views

EAP TLS identity requriements

I am using freeradius to test EAP-TLS. Authorization only succeeds if I specify an identity. It doesn't even have to match any fields in the client certificate. Why is that required if I have a cert ...
shortshrift's user avatar
0 votes
0 answers
878 views

Unable to decrypt password protected certificates with Freeradius or from GUI

I am trying to use Freeradius 3.0 for authentication with certificates. To generate the CA, Server and Client certificate, make is available, reading a specific configuration file for each ...
molik's user avatar
  • 173
0 votes
0 answers
233 views

EAP-TLS : implementation and testing of a communication between two processes

I'm trying to make a simple EAP-TLS communication between two processes and capture it with Wireshark. Is there any library that can be used? (like mbedtls in the TLS case). I have found a lot of ...
Sophia M's user avatar