🥇Freeradius + Google Atheticator + LDAP + Fortigate

He aha kāu e hana ai inā makemake ʻoe i ka hōʻoia ʻelua kumu a ke kānalua nei, akā ʻaʻohe kālā no nā hōʻailona hāmeʻa a ma ke ʻano nui ke manaʻo nei lākou e paʻa i kahi ʻano maikaʻi.

ʻAʻole kēia hoʻonā he mea kumu maoli, akā he hui o nā hopena like ʻole i loaʻa ma ka Pūnaewele.

No laila ua hāʻawi ʻia

Pūnaewele Kuhikuhi Kuhi.

ʻO nā mea hoʻohana pūnaewele e hana ana ma o VPN, e like me nā mea he nui i kēia lā.

Hana ka VPN ma ke ʻano he ʻīpuka Hoʻoikaika.

Hoʻopaʻa ʻia ka mālama ʻana i ka ʻōlelo huna no ka mea kūʻai VPN e ka kulekele palekana.

Kalaiaina ʻEhā kanahā e pili ana i kāna mau hōʻailona pono'ī,ʻaʻole hiki iāʻoe ke kapa iā ia he emi iho ma mua o ka redneck - aia ka nui o 10 mau pūʻulu o nā hōʻailona manuahi,ʻo ke koena ma ke kumu kūʻaiʻole kosher. ʻAʻole wau i noʻonoʻo i ka RSASecureID, Duo a me nā mea like, no ka mea makemake wau i ke kumu wehe.

Nā mea e pono ai: kahu kahu * nix me ka hoʻokomo freeradius, ssd — komo i loko o ke kāʻei kua, hiki i nā mea hoʻohana domain ke hōʻoia maʻalahi iā ia.

Nā pūʻolo hou aku: shellinabox, fākana, freeradius-ldap, font kipi.tlf mai ka waihona https://github.com/xero/figlet-fonts.

I kaʻu hiʻohiʻona, ʻo CentOS 7.8.

ʻO ka loiloi hana penei: i ka wā e hoʻopili ai i kahi VPN, pono ka mea hoʻohana e hoʻokomo i kahi inoa inoa domain a me OTP ma kahi o ka ʻōlelo huna.

Hoʻonohonoho i nā lawelawe

В /etc/raddb/radiusd.conf ʻo ka mea hoʻohana a me ka hui wale nō ma lalo o kona inoa e hoʻomaka ai e loli freeradius, mai ka lawelawe ana radiusd Pono e hiki ke heluhelu i nā faila ma nā papa kuhikuhi āpau / home /.

user = root
group = root

No ka hiki ke hoʻohana i nā hui i nā hoʻonohonoho Hoʻoikaika, pono e hooili ia ʻAno Kūʻai Kūʻai. E hana i kēia ma ka papa kuhikuhi raddb/policy.d Hana wau i faila me kēia ʻike:

group_authorization {
    if (&LDAP-Group[*] == "CN=vpn_admins,OU=vpn-groups,DC=domain,DC=local") {
            update reply {
                &Fortinet-Group-Name = "vpn_admins" }
            update control {
                &Auth-Type := PAM
                &Reply-Message := "Welcome Admin"
                }
        }
    else {
        update reply {
        &Reply-Message := "Not authorized for vpn"
            }
        reject
        }
}

Ma hope o ka hoʻonohonoho freeradius-ldap ma ka papa kuhikuhi raddb/mods-loaʻa hana ʻia ka faila ldap.

Pono ʻoe e hana i kahi loulou hōʻailona i ka papa kuhikuhi raddb/mods-hiki.

ln -s /etc/raddb/mods-available/ldap /etc/raddb/mods-enabled/ldap

Ke hoike aku nei au i kona mau mea penei:

ldap {
        server = 'domain.local'
        identity = 'CN=freerad_user,OU=users,DC=domain,DC=local'
        password = "SupeSecretP@ssword"
        base_dn = 'dc=domain,dc=local'
        sasl {
        }
        user {
                base_dn = "${..base_dn}"
                filter = "(sAMAccountname=%{%{Stripped-User-Name}:-%{User-Name}})"
                sasl {
                }
                scope = 'sub'
        }
        group {
                base_dn = "${..base_dn}"
                filter = '(objectClass=Group)'
                scope = 'sub'
                name_attribute = cn
                membership_filter = "(|(member=%{control:Ldap-UserDn})(memberUid=%{%{Stripped-User-Name}:-%{User-Name}}))"
                membership_attribute = 'memberOf'
        }
}

I nā faila raddb/pūnaewele-hiki/paʻamau и raddb/pūnaewele-hiki/inner-tunnel ma ka pauku ʻae ʻia Hoʻohui wau i ka inoa o ke kulekele e hoʻohana ʻia - group_authorization. ʻO kahi mea nui - ʻaʻole i hoʻoholo ʻia ka inoa o ke kulekele e ka inoa o ka faila ma ka papa kuhikuhi kulekele.d, akā he kuhikuhi i loko o ka faila ma mua o nā pale pale.
Ma ka pauku hōʻoiaʻiʻo i loko o nā faila pono ʻoe e wehe i ka laina Pam.

Ma ka waihona nā mea kūʻai.conf e kuhikuhi i nā ʻāpana e hoʻopili ai Hoʻoikaika:

client fortigate {
    ipaddr = 192.168.1.200
    secret = testing123
    require_message_authenticator = no
    nas_type = other
}

Hoʻonohonoho modula pam.d/radiusd:

#%PAM-1.0
auth       sufficient   pam_google_authenticator.so
auth       include      password-auth
account    required     pam_nologin.so
account    include      password-auth
password   include      password-auth
session    include      password-auth

Nā koho paʻamau no ka hoʻokō ʻana i ka pūʻolo freeradius с google authenticator koi i ka mea hoʻohana e hoʻokomo i nā hōʻoia ma ke ʻano: mea hoʻohana/ ʻōlelo huna+OTP.

E noʻonoʻo i ka nui o nā hōʻino e hāʻule i kou poʻo inā hoʻohana ʻoe i ka copula paʻamau freeradius с ʻO Google Authenticator, ua hoʻoholo ʻia e hoʻohana i ka hoʻonohonoho module Pam no laila e nānā wale ʻia ka hōʻailona ʻO Google Authenticator.

Ke hoʻohui ka mea hoʻohana, e hana ʻia kēia:

Nānā ʻo Freeradius inā aia ka mea hoʻohana i ka domain a i loko o kahi hui kikoʻī a, inā kūleʻa, nānā i ka hōʻailona OTP.

Ua holomua nā mea a pau a hiki i koʻu manaʻo, "Pehea wau e hoʻopaʻa inoa ai i ka OTP no nā mea hoʻohana 300+?"

Pono ka mea hoʻohana e komo i ke kikowaena me freeradius a mai kāu moʻokāki a hoʻomaka i ka noi Pūnaewele Google, e hoʻopuka i kahi QR code no ka noi no ka mea hoʻohana. ʻO kēia kahi e hiki ai ke hoʻopakele shellinabox i hui pū ʻia me .bash_profile.

[root@freeradius ~]# yum install -y shellinabox

Aia ka faila hoʻonohonoho daemon ma /etc/sysconfig/shellinabox.
Hōʻike wau i ka port 443 ma laila a hiki iā ʻoe ke kuhikuhi i kāu palapala hōʻoia.

[root@freeradius ~]#systemctl enable --now shellinaboxd

Hiki i ka mea hoʻohana ke hahai i ka loulou, e hoʻokomo i nā hōʻoia domain a loaʻa kahi QR code no ka noi.

Penei ka algorithm:

Hoʻopili ka mea hoʻohana i ka mīkini ma o ka polokalamu kele pūnaewele.
ʻIke ʻia inā he mea hoʻohana domain ka mea hoʻohana. Inā ʻaʻole, ʻaʻohe hana i hana ʻia.
Inā he mea hoʻohana domain ka mea hoʻohana, nānā ʻia ka lālā o ka hui luna.
Inā ʻaʻole he admin, nānā ia inā ua hoʻonohonoho ʻia ʻo Google Authenticator. Inā ʻaʻole, a laila hana ʻia kahi code QR a haʻalele ka mea hoʻohana.
Inā ʻaʻole ʻoe he admin a ua hoʻonohonoho ʻia ʻo Google Authenticator, a laila e haʻalele wale.
Inā he luna, e nānā hou iā Google Authenticator. Inā ʻaʻole i hoʻonohonoho ʻia, hana ʻia kahi code QR.

Hoʻohana ʻia nā loiloi āpau /etc/skel/.bash_profile.

cat /etc/skel/.bash_profile

# .bash_profile

# Get the aliases and functions
if [ -f ~/.bashrc ]; then
        . ~/.bashrc
fi

# User specific environment and startup programs
# Make several commands available from user shell

if [[ -z $(id $USER | grep "admins") || -z $(cat /etc/passwd | grep $USER) ]]
  then
    [[ ! -d $HOME/bin ]] && mkdir $HOME/bin
    [[ ! -f $HOME/bin/id ]] && ln -s /usr/bin/id $HOME/bin/id
    [[ ! -f $HOME/bin/google-auth ]] && ln -s /usr/bin/google-authenticator $HOME/bin/google-auth
    [[ ! -f $HOME/bin/grep ]] && ln -s /usr/bin/grep $HOME/bin/grep
    [[ ! -f $HOME/bin/figlet ]] && ln -s /usr/bin/figlet $HOME/bin/figlet
    [[ ! -f $HOME/bin/rebel.tlf ]] && ln -s /usr/share/figlet/rebel.tlf $HOME/bin/rebel.tlf
    [[ ! -f $HOME/bin/sleep ]] && ln -s /usr/bin/sleep $HOME/bin/sleep
  # Set PATH env to <home user directory>/bin
    PATH=$HOME/bin
    export PATH
  else
    PATH=PATH=$PATH:$HOME/.local/bin:$HOME/bin
    export PATH
fi


if [[ -n $(id $USER | grep "domain users") ]]
  then
    if [[ ! -e $HOME/.google_authenticator ]]
      then
        if [[ -n $(id $USER | grep "admins") ]]
          then
            figlet -t -f $HOME/bin/rebel.tlf "Welcome to Company GAuth setup portal"
            sleep 1.5
            echo "Please, run any of these software on your device, where you would like to setup OTP:
Google Autheticator:
AppStore - https://apps.apple.com/us/app/google-authenticator/id388497605
Play Market - https://play.google.com/stor/apps/details?id=com.google.android.apps.authenticator2&hl=en
FreeOTP:
AppStore - https://apps.apple.com/us/app/freeotp-authenticator/id872559395
Play Market - https://play.google.com/store/apps/details?id=org.fedorahosted.freeotp&hl=en

And prepare to scan QR code.

"
            sleep 5
            google-auth -f -t -w 3 -r 3 -R 30 -d -e 1
            echo "Congratulations, now you can use an OTP token from application as a password connecting to VPN."
          else
            figlet -t -f $HOME/bin/rebel.tlf "Welcome to Company GAuth setup portal"
            sleep 1.5
            echo "Please, run any of these software on your device, where you would like to setup OTP:
Google Autheticator:
AppStore - https://apps.apple.com/us/app/google-authenticator/id388497605
Play Market - https://play.google.com/store/apps/details?id=com.google.android.apps.authenticator2&hl=en
FreeOTP:
AppStore - https://apps.apple.com/us/app/freeotp-authenticator/id872559395
Play Market - https://play.google.com/store/apps/details?id=org.fedorahosted.freeotp&hl=en

And prepare to scan QR code.

"
            sleep 5
            google-auth -f -t -w 3 -r 3 -R 30 -d -e 1
            echo "Congratulations, now you can use an OTP token from application as a password to VPN."
            logout
        fi
      else
        echo "You have already setup a Google Authenticator"
        if [[ -z $(id $USER | grep "admins") ]]
          then
          logout
        fi
    fi
  else
    echo "You don't need to set up a Google Authenticator"
fi

Hoʻonohonoho paʻa:

Hana mākou ke kahahńnai o-server
Hoʻokumu mākou i nā hui pono, inā pono e hoʻokaʻawale i ke komo ʻana ma ka hui. Ka inoa hui ma Hoʻoikaika pono e kūlike me ka hui i hoʻouna ʻia i ʻAno Kūʻai Kūʻai Fortinet-Group-Inoa.
Hoʻoponopono i nā mea e pono ai SSL-puka.
Hoʻohui i nā hui i nā kulekele.

ʻO nā mea maikaʻi o kēia hopena:

Hiki ke hōʻoia ma o OTP ma Hoʻoikaika hāmama kumu hoʻonā.
ʻAʻole pono ka mea hoʻohana e hoʻokomo i kahi ʻōlelo huna i ka wā e hoʻopili ai ma o VPN, kahi mea maʻalahi i ke kaʻina pili. ʻOi aku ka maʻalahi o ka ʻōlelo huna 6-helu ma mua o ka mea i hāʻawi ʻia e ke kulekele palekana. ʻO ka hopena, ke emi nei ka helu o nā tiketi me ke kumuhana: "ʻAʻole hiki iaʻu ke hoʻohui i ka VPN".

PS Aia nā hoʻolālā e hoʻomaikaʻi i kēia hoʻonā i ka hōʻoia piha ʻelua ʻelua me ka pane-paʻakikī.

Kiʻi hou:

E like me ka mea i hoʻohiki ʻia, hoʻonui wau iā ia i ke koho me ka pane hoʻokūkū.
No laila:
Ma ka waihona /etc/raddb/sites-enabled/default pauku ʻae ʻia penei:

authorize {
    filter_username
    preprocess
    auth_log
    chap
    mschap
    suffix
    eap {
        ok = return
    }
    files
    -sql
    #-ldap
    expiration
    logintime
    if (!State) {
        if (&User-Password) {
            # If !State and User-Password (PAP), then force LDAP:
            update control {
                Ldap-UserDN := "%{User-Name}"
                Auth-Type := LDAP
            }
        }
        else {
            reject
        }
    }
    else {
        # If State, then proxy request:
        group_authorization
    }
pap
}

Paukū hōʻoiaʻiʻo i kēia manawa e like me kēia:

authenticate {
        Auth-Type PAP {
                pap
        }
        Auth-Type CHAP {
                chap
        }
        Auth-Type MS-CHAP {
                mschap
        }
        mschap
        digest
        # Attempt authentication with a direct LDAP bind:
        Auth-Type LDAP {
        ldap
        if (ok) {
            update reply {
                # Create a random State attribute:
                State := "%{randstr:aaaaaaaaaaaaaaaa}"
                Reply-Message := "Please enter OTP"
                }
            # Return Access-Challenge:
            challenge
            }
        }
        pam
        eap
}

I kēia manawa ua hōʻoia ka mea hoʻohana me ka hoʻohana ʻana i kēia algorithm:

Hoʻokomo ka mea hoʻohana i nā hōʻoia kikowaena i ka mea kūʻai VPN.
Nānā ʻo Freeradius i ka pono a me ka ʻōlelo huna
Inā pololei ka ʻōlelo huna, a laila hoʻouna ʻia kahi noi no kahi hōʻailona.
Ke hōʻoia ʻia nei ka hōʻailona.
Loaʻa).

Source: www.habr.com

Freeradius + Google Atheticator + LDAP + Fortigate

No laila ua hāʻawi ʻia

Hoʻonohonoho i nā lawelawe

Hoʻonohonoho paʻa:

Kiʻi hou:

Pākuʻi i ka manaʻo hoʻopuka ana pane