TOTP authentication with the TOTP module
IT DEB
itdebbw.p at gmail.com
Tue Mar 11 06:56:58 UTC 2025
Hi Alan
Thanks. Sorry im absolutely new to freeradius.
Now i changed in the config to
Auth-Type PAP {
totp
}
and reconfigured the vncserver to use PAP and now I got this error:
Ready to process requests
(0) Received Access-Request Id 83 from 192.168.65.161:58717 to
192.168.65.160:1812 length 71
(0) NAS-Identifier = "vncserver"
(0) User-Name = "bw"
(0) User-Password = "302427"
(0) Message-Authenticator = 0xa8aeb49defe09e2a13087975576d4754
(0) # Executing section authorize from file
/etc/freeradius/3.0/sites-enabled/default
(0) authorize {
(0) policy filter_username {
(0) if (&User-Name) {
(0) if (&User-Name) -> TRUE
(0) if (&User-Name) {
(0) if (&User-Name =~ / /) {
(0) if (&User-Name =~ / /) -> FALSE
(0) if (&User-Name =~ /@[^@]*@/ ) {
(0) if (&User-Name =~ /@[^@]*@/ ) -> FALSE
(0) if (&User-Name =~ /\.\./ ) {
(0) if (&User-Name =~ /\.\./ ) -> FALSE
(0) if ((&User-Name =~ /@/) && (&User-Name !~ /@(.+)\.(.+)$/)) {
(0) if ((&User-Name =~ /@/) && (&User-Name !~ /@(.+)\.(.+)$/)) ->
FALSE
(0) if (&User-Name =~ /\.$/) {
(0) if (&User-Name =~ /\.$/) -> FALSE
(0) if (&User-Name =~ /@\./) {
(0) if (&User-Name =~ /@\./) -> FALSE
(0) } # if (&User-Name) = notfound
(0) } # policy filter_username = notfound
(0) [preprocess] = ok
(0) [chap] = noop
(0) [mschap] = noop
(0) [digest] = noop
(0) suffix: Checking for suffix after "@"
(0) suffix: No '@' in User-Name = "bw", looking up realm NULL
(0) suffix: No such realm "NULL"
(0) [suffix] = noop
(0) eap: No EAP-Message, not doing EAP
(0) [eap] = noop
(0) files: users: Matched entry bw at line 1
(0) [files] = ok
(0) [expiration] = noop
(0) [logintime] = noop
(0) pap: WARNING: No "known good" password found for the user. Not setting
Auth-Type
(0) pap: WARNING: Authentication will fail unless a "known good" password
is available
(0) [pap] = noop
(0) } # authorize = ok
(0) ERROR: No Auth-Type found: rejecting the user via Post-Auth-Type =
Reject
(0) Failed to authenticate the user
(0) Using Post-Auth-Type Reject
(0) # Executing group from file /etc/freeradius/3.0/sites-enabled/default
(0) Post-Auth-Type REJECT {
(0) attr_filter.access_reject: EXPAND %{User-Name}
(0) attr_filter.access_reject: --> bw
(0) attr_filter.access_reject: Matched entry DEFAULT at line 11
(0) [attr_filter.access_reject] = updated
(0) [eap] = noop
(0) policy remove_reply_message_if_eap {
(0) if (&reply:EAP-Message && &reply:Reply-Message) {
(0) if (&reply:EAP-Message && &reply:Reply-Message) -> FALSE
(0) else {
(0) [noop] = noop
(0) } # else = noop
(0) } # policy remove_reply_message_if_eap = noop
(0) } # Post-Auth-Type REJECT = updated
(0) Delaying response for 1.000000 seconds
Waking up in 0.3 seconds.
Waking up in 0.6 seconds.
(0) Sending delayed response
(0) Sent Access-Reject Id 83 from 192.168.65.160:1812 to
192.168.65.161:58717 length 20
Waking up in 3.9 seconds.
(0) Sending duplicate reply to client pc1 port 58717 - ID: 83
Waking up in 8.9 seconds.
(0) Cleaning up request packet ID 83 with timestamp +61 due to
cleanup_delay was reached
Am Fr., 7. März 2025 um 13:55 Uhr schrieb Alan DeKok <
aland at deployingradius.com>:
> On Mar 7, 2025, at 7:40 AM, IT DEB <itdebbw.p at gmail.com> wrote:
> > I am trying a simple TOTP authentication with the TOTP module. The idea
> is
> > that the user only has to enter the OTP via Radius and is authenticated.
> >
> > Freeradius starts but the authentication does not work. See below config
> > and output.
> >
>
> > #clients.conf File
>
> Please don't post configuration files. The documentation makes it VERY
> clear that this isn't needed.
>
> > Ready to process requests
> > (0) Received Access-Request Id 23 from 192.168.65.161:60716 to
> > 192.168.65.160:1812 length 72
> > (0) NAS-Identifier = "vncserver"
> > (0) User-Name = "bw"
> > (0) CHAP-Password = 0x00549ccaa7d52c08fd1655bce475bdd1d9
>
> You can't use CHAP with TOTP. It has to be used with PAP
> authentication. i.e. User-Password.
>
> > (0) Auth-Type CHAP {
> > (0) [totp] = noop
>
> Yup.
>
> I'll add an error message describing why it doesn't work.
>
> There isn't a lot of point in doing TOTP with CHAP. The TOTP is a
> one-time password, so "hiding" it inside of CHAP doesn't add any security.
>
> Alan DeKok.
>
> -
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