Authentication segfault with Dovecot 2.3.13
Harald Leithner
leithner at itronic.at
Thu Jan 7 10:05:21 EET 2021
Hi,
1. legacy customer requirement...
2. we will try to remove nodelay
thanks
Am 07.01.2021 um 00:05 schrieb Josef 'Jeff' Sipek:
> On Wed, Jan 06, 2021 at 14:07:06 -0500, Josef 'Jeff' Sipek wrote:
>> Ok, just a quick update. I managed to reproduce it. I'll try to figure out
>> where things went wrong.
>
> Two more questions:
>
> (1) Why are you using a UNION in your SQL statement?
>
> (2) Does the crash still happen if you remove the nodelay parts of the SQL
> statements?
>
> Thanks,
>
> Jeff.
>
>>
>> Thanks,
>>
>> Jeff.
>>
>> On Wed, Jan 06, 2021 at 18:22:03 +0100, Harald Leithner wrote:
>>> Hi
>>>
>>> Am 06.01.2021 um 18:08 schrieb Josef 'Jeff' Sipek:
>>>> On Wed, Jan 06, 2021 at 17:13:05 +0100, Harald Leithner wrote:
>>>>> Hi,
>>>>>
>>>>
>>>>
>>>>> and the user part with "user at redacted".
>>>>
>>>> I assume you did this for additional privacy, and not because you think that
>>>> auth_debug_passwords=no should hide usernames as well.
>>>
>>> yes
>>>
>>>>
>>>>> The user uses APOP for authentication, but other users login
>>>>> successfully with APOP.
>>>>
>>>> Do you only use APOP? Or are other authentication schemes affected as well?
>>>
>>> No
>>>
>>>>
>>>> Can you share your config? (`doveconf -n` will be a good start, any .ext
>>>> files may be useful as well)
>>>
>>> yes here is the dovecot -n
>>>
>>> [root at mail:~]$ doveconf -n
>>> # 2.3.13 (89f716dc2): /etc/dovecot/dovecot.conf
>>> # OS: Linux 5.9.16-100.fc32.x86_64 x86_64 Generic release 32 (Generic)
>>> # Hostname: xxxx
>>> auth_cache_negative_ttl = 10 secs
>>> auth_cache_size = 64 k
>>> auth_cache_ttl = 30 secs
>>> auth_mechanisms = CRAM-MD5 DIGEST-MD5 APOP LOGIN PLAIN
>>> auth_username_chars =
>>> abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890.-_@%
>>> auth_username_translation =
>>> %@AaBbCcDdEeFfGgHhIiJjKkLlMmNnOoPpQqRrSsTtUuVvWwXxYyZz
>>> auth_worker_max_count = 150
>>> disable_plaintext_auth = no
>>> imap_capability = IMAP4 IMAP4rev1 ACL RIGHTS=texk NAMESPACE CHILDREN
>>> SORT QUOTA THREAD=ORDEREDSUBJECT UNSELECT IDLE
>>> login_greeting =
>>> login_log_format_elements = user=<%u> %r %m %c %k
>>> mail_max_userip_connections = 100
>>> passdb {
>>> args = /etc/dovecot/sql.conf
>>> driver = sql
>>> }
>>> protocols = imap pop3
>>> service anvil {
>>> unix_listener anvil-auth-penalty {
>>> mode = 00
>>> }
>>> }
>>> service auth {
>>> unix_listener /var/spool/postfix/private/auth {
>>> group = postfix
>>> mode = 0660
>>> user = postfix
>>> }
>>> }
>>> service imap-login {
>>> client_limit = 300
>>> inet_listener imap {
>>> address = xx.xx.xx.xx
>>> port = 143
>>> }
>>> inet_listener imaps {
>>> address = xx.xx.xx.xx
>>> port = 993
>>> }
>>> process_limit = 15
>>> process_min_avail = 1
>>> service_count = 0
>>> vsz_limit = 512 M
>>> }
>>> service pop3-login {
>>> client_limit = 300
>>> inet_listener pop3 {
>>> address = xx.xx.xx.xx
>>> port = 110
>>> }
>>> inet_listener pop3s {
>>> address = xx.xx.xx.xx
>>> port = 995
>>> }
>>> process_limit = 15
>>> process_min_avail = 1
>>> service_count = 0
>>> vsz_limit = 512 M
>>> }
>>> service stats {
>>> client_limit = 10000
>>> }
>>> shutdown_clients = no
>>> ssl_alt_cert = </var/lib/letsencrypt-wildcard/ecdsa.pem
>>> ssl_alt_key = # hidden, use -P to show it
>>> ssl_cert = </var/lib/letsencrypt-wildcard/rsa.pem
>>> ssl_cipher_list =
>>> ECDHE-RSA-CHACHA20-POLY1305:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384:ECDHE-RSA-AES128-SHA256:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES128-SHA:ECDHE-RSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES256-SHA256:DHE-RSA-AES128-SHA:DHE-RSA-AES256-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA:AES256-SHA
>>> ssl_dh = # hidden, use -P to show it
>>> ssl_key = # hidden, use -P to show it
>>> ssl_options = no_compression
>>> ssl_prefer_server_ciphers = yes
>>> userdb {
>>> args = static uid=5000 gid=5000 home=/dev/null
>>> driver = static
>>> }
>>> version_ignore = yes
>>> [root at mail:~]$
>>>
>>>
>>>>
>>>> Thanks,
>>>>
>>>> Jeff.
>>>
>>> thx
>>>
>>> Harald
>>>
>>>>
>>>>> Here is a stacktrace and a log dump:
>>>>>
>>>>> Jan 6 16:29:44 mail kernel: auth[2208397]: segfault at ec ip
>>>>> 00007f67fc147174 sp 00007ffeed993150 error 4 in
>>>>> libdovecot.so.0.0.0[7f67fc06e000+fc000]
>>>>> Jan 6 16:29:44 mail kernel: Code: 1f 80 00 00 00 00 41 54 e8 79 fd ff
>>>>> ff 31 f6 49 89 c4 48 89 c7 31 c0 e8 ca f8 ff ff 4c 89 e0 41 5c c3 0f 1f
>>>>> 40 00 53 48 89 fb <f6> 87 ec 00 00 00 04 75 43 48 83 3d 7b aa 0a 00 00
>>>>> 0f 85 50 15 f4
>>>>> Jan 6 16:29:44 mail systemd[1]: Started Process Core Dump (PID
>>>>> 2208677/UID 0).
>>>>> Jan 6 16:29:44 mail systemd-coredump[2208678]: Process 2208397 (auth)
>>>>> of user 489 dumped core.#012#012Stack trace of thread 2208397:#012#0
>>>>> 0x00007f67fc147174 event_create_passthrough (libdovecot.so.0 +
>>>>> 0x116174)#012#1 0x0000555678812d6e auth_request_finished_event (auth +
>>>>> 0x1bd6e)#012#2 0x00005556788159ae auth_request_log_finished (auth +
>>>>> 0x1e9ae)#012#3 0x0000555678816ee0 n/a (auth + 0x1fee0)#012#4
>>>>> 0x0000555678826dc1 passdb_handle_credentials (auth + 0x2fdc1)#012#5
>>>>> 0x0000555678816c7e n/a (auth + 0x1fc7e)#012#6 0x0000555678824f27 n/a
>>>>> (auth + 0x2df27)#012#7 0x000055567881b02d
>>>>> auth_request_handler_auth_begin (auth + 0x2402d)#012#8
>>>>> 0x000055567880dfaf n/a (auth + 0x16faf)#012#9 0x00007f67fc143a79
>>>>> io_loop_call_io (libdovecot.so.0 + 0x112a79)#012#10 0x00007f67fc144ae2
>>>>> io_loop_handler_run_internal (libdovecot.so.0 + 0x113ae2)#012#11
>>>>> 0x00007f67fc143b21 io_loop_handler_run (libdovecot.so.0 +
>>>>> 0x112b21)#012#12 0x00007f67fc143ce0 io_loop_run (libdovecot.so.0 +
>>>>> 0x112ce0)#012#13 0x00007f67fc0b96f3 master_service_run (libdovecot.so.0
>>>>> + 0x886f3)#012#14 0x000055567880c2db main (auth + 0x152db)#012#15
>>>>> 0x00007f67fbc9d042 __libc_start_main (libc.so.6 + 0x27042)#012#16
>>>>> 0x000055567880c48e _start (auth + 0x1548e)
>>>>>
>>>>> Jan 6 16:29:44 mail dovecot[2208071]: auth: Debug: client in:
>>>>> AUTH#011134#011PLAIN#011service=imap#011session=tgog/jy4erm5j7ZO#011lip=lan-ip#011rip=client-ip#011lport=143#011rport=47482
>>>>> Jan 6 16:29:44 mail dovecot[2208071]: auth: Debug: client passdb out:
>>>>> CONT#011134
>>>>> Jan 6 16:29:44 mail dovecot[2208071]: auth: Debug: client in: CONT<hidden>
>>>>> Jan 6 16:29:44 mail dovecot[2208071]: auth: Debug:
>>>>> sql(user at redacted,client-ip,<tgog/jy4erm5j7ZO>): Performing passdb lookup
>>>>> Jan 6 16:29:44 mail dovecot[2208071]: auth: Debug:
>>>>> sql(user at redacted,client-ip,<tgog/jy4erm5j7ZO>): cache expired
>>>>> Jan 6 16:29:44 mail dovecot[2208071]: auth-worker(2208404): Debug: conn
>>>>> unix:auth-worker (pid=2208397,uid=489): auth-worker<229>: Handling PASSV
>>>>> request
>>>>> Jan 6 16:29:44 mail dovecot[2208071]: auth-worker(2208404): Debug: conn
>>>>> unix:auth-worker (pid=2208397,uid=489): auth-worker<229>:
>>>>> sql(user at redacted,client-ip,<tgog/jy4erm5j7ZO>): Performing passdb lookup
>>>>> Jan 6 16:29:44 mail dovecot[2208071]: auth-worker(2208404): Debug: conn
>>>>> unix:auth-worker (pid=2208397,uid=489): auth-worker<229>:
>>>>> sql(user at redacted,client-ip,<tgog/jy4erm5j7ZO>): query: SELECT passwd as
>>>>> password, '127.0.0.1' as host, userid as destuser, passwd AS pass, 'Y'
>>>>> AS nologin, 'Y' AS nodelay, 'Y' AS proxy FROM dbmail_users WHERE
>>>>> userid='user at redacted' UNION (SELECT password as password, '127.0.0.1'
>>>>> as host, username as destuser, password AS pass, 'Y' AS nologin, 'Y' AS
>>>>> nodelay, 'Y' AS proxy FROM sasl_fake_auth WHERE
>>>>> username='user at redacted') limit 1;
>>>>> Jan 6 16:29:44 mail dovecot[2208071]: auth-worker(2208404): conn
>>>>> unix:auth-worker (pid=2208397,uid=489): auth-worker<229>:
>>>>> sql(user at redacted,client-ip,<tgog/jy4erm5j7ZO>): Password mismatch
>>>>> Jan 6 16:29:44 mail dovecot[2208071]: auth-worker(2208404): Debug: conn
>>>>> unix:auth-worker (pid=2208397,uid=489): auth-worker<229>:
>>>>> sql(user at redacted,client-ip,<tgog/jy4erm5j7ZO>): Finished passdb lookup
>>>>> Jan 6 16:29:44 mail dovecot[2208071]: auth-worker(2208404): Debug: conn
>>>>> unix:auth-worker (pid=2208397,uid=489): auth-worker<229>: Finished
>>>>> Jan 6 16:29:44 mail dovecot[2208071]: auth: Debug:
>>>>> sql(user at redacted,client-ip,<tgog/jy4erm5j7ZO>): Finished passdb lookup
>>>>> Jan 6 16:29:44 mail dovecot[2208071]: auth: Debug:
>>>>> auth(user at redacted,client-ip,<tgog/jy4erm5j7ZO>): Auth request finished
>>>>> Jan 6 16:29:44 mail dovecot[2208071]: auth: Debug: client in:
>>>>> AUTH#011443#011APOP#011service=pop3#011secured=tls#011session=n58h/jy4a0i5j7ZO#011lip=lan-ip#011rip=client-ip#011lport=995#011rport=18539#011local_name=mail#011resp=<hidden>
>>>>> Jan 6 16:29:44 mail dovecot[2208071]: auth: Debug:
>>>>> sql(user at redacted,client-ip,<n58h/jy4a0i5j7ZO>): Performing passdb lookup
>>>>> Jan 6 16:29:44 mail dovecot[2208071]: auth: Debug:
>>>>> sql(user at redacted,client-ip,<n58h/jy4a0i5j7ZO>): cache hit:
>>>>> <hidden>#011host=127.0.0.1#011destuser=user at redacted#011pass=THIS_SHOULD_NOT_GET_LOGGED#011nologin=Y#011nodelay=Y#011proxy=Y
>>>>> Jan 6 16:29:44 mail dovecot[2208071]: auth: Debug:
>>>>> sql(user at redacted,client-ip,<n58h/jy4a0i5j7ZO>): Finished passdb lookup
>>>>> Jan 6 16:29:44 mail dovecot[2208071]: auth: Debug:
>>>>> auth(user at redacted,client-ip,<n58h/jy4a0i5j7ZO>): Auth request finished
>>>>> Jan 6 16:29:44 mail dovecot[2208071]: auth: Debug: client passdb out:
>>>>> FAIL#011443#011user=user at redacted#011nodelay#011pass=<hidden>#011nodelay=Y
>>>>> Jan 6 16:29:44 mail dovecot[2208071]: pop3-login: Debug: Ignoring
>>>>> unknown passdb extra field: nodelay
>>>>> Jan 6 16:29:44 mail dovecot[2208071]: pop3-login: Debug: Ignoring
>>>>> unknown passdb extra field: nodelay
>>>>> Jan 6 16:29:44 mail dovecot[2208071]: pop3-login: Disconnected (auth
>>>>> failed, 1 attempts in 0 secs): user=<user at redacted>, client-ip, APOP,
>>>>> TLS, TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)
>>>>> Jan 6 16:29:44 mail dovecot[2208071]: auth-worker(2208404): Debug: conn
>>>>> unix:auth-worker (pid=2208397,uid=489): Disconnected: Connection closed
>>>>> (fd=-1)
>>>>> Jan 6 16:29:44 mail dovecot[2208071]: auth: Fatal: master:
>>>>> service(auth): child 2208397 killed with signal 11 (core
>>>>> dumped)h-worker<1>: Handling PASSV request
>>>>>
>>>>> Jan 6 16:20:05 mail dovecot[2208071]: auth: Debug: client in:
>>>>> AUTH#01179#011PLAIN#011service=imap#011session=QY6V2zy4FUm5j7YD#011lip=lan-ip#011rip=client-ip#011lport=143#011rport=18709
>>>>> Jan 6 16:20:05 mail dovecot[2208071]: auth: Debug: client passdb out:
>>>>> CONT#01179
>>>>> Jan 6 16:20:05 mail dovecot[2208071]: auth: Debug: client in: CONT<hidden>
>>>>> Jan 6 16:20:05 mail dovecot[2208071]: auth: Debug:
>>>>> sql(user at redacted,client-ip,<QY6V2zy4FUm5j7YD>): Performing passdb lookup
>>>>> Jan 6 16:20:05 mail dovecot[2208071]: auth: Debug:
>>>>> sql(user at redacted,client-ip,<QY6V2zy4FUm5j7YD>): cache expired
>>>>> Jan 6 16:20:05 mail dovecot[2208071]: auth-worker(2208083): Debug: conn
>>>>> unix:auth-worker (pid=2208074,uid=489): auth-worker<235>: Handling PASSV
>>>>> request
>>>>> Jan 6 16:20:05 mail dovecot[2208071]: auth-worker(2208083): Debug: conn
>>>>> unix:auth-worker (pid=2208074,uid=489): auth-worker<235>:
>>>>> sql(user at redacted,client-ip,<QY6V2zy4FUm5j7YD>): Performing passdb lookup
>>>>> Jan 6 16:20:05 mail dovecot[2208071]: auth-worker(2208083): Debug: conn
>>>>> unix:auth-worker (pid=2208074,uid=489): auth-worker<235>:
>>>>> sql(user at redacted,client-ip,<QY6V2zy4FUm5j7YD>): query: SELECT passwd as
>>>>> password, '127.0.0.1' as host, userid as destuser, passwd AS pass, 'Y'
>>>>> AS nologin, 'Y' AS nodelay, 'Y' AS proxy FROM dbmail_users WHERE
>>>>> userid='user at redacted' UNION (SELECT password as password, '127.0.0.1'
>>>>> as host, username as destuser, password AS pass, 'Y' AS nologin, 'Y' AS
>>>>> nodelay, 'Y' AS proxy FROM sasl_fake_auth WHERE
>>>>> username='user at redacted') limit 1;
>>>>> Jan 6 16:20:05 mail dovecot[2208071]: auth-worker(2208083): conn
>>>>> unix:auth-worker (pid=2208074,uid=489): auth-worker<235>:
>>>>> sql(user at redacted,client-ip,<QY6V2zy4FUm5j7YD>): Password mismatch
>>>>> Jan 6 16:20:05 mail dovecot[2208071]: auth-worker(2208083): Debug: conn
>>>>> unix:auth-worker (pid=2208074,uid=489): auth-worker<235>:
>>>>> sql(user at redacted,client-ip,<QY6V2zy4FUm5j7YD>): Finished passdb lookup
>>>>> Jan 6 16:20:05 mail dovecot[2208071]: auth-worker(2208083): Debug: conn
>>>>> unix:auth-worker (pid=2208074,uid=489): auth-worker<235>: Finished
>>>>> Jan 6 16:20:05 mail dovecot[2208071]: auth: Debug:
>>>>> sql(user at redacted,client-ip,<QY6V2zy4FUm5j7YD>): Finished passdb lookup
>>>>> Jan 6 16:20:05 mail dovecot[2208071]: auth: Debug:
>>>>> auth(user at redacted,client-ip,<QY6V2zy4FUm5j7YD>): Auth request finished
>>>>> Jan 6 16:20:05 mail dovecot[2208071]: auth: Debug: client in:
>>>>> AUTH#011215#011APOP#011service=pop3#011secured=tls#011session=ZJWX2zy4VzO5j7YD#011lip=lan-ip#011rip=client-ip#011lport=995#011rport=13143#011local_name=mail#011resp=<hidden>
>>>>> Jan 6 16:20:05 mail dovecot[2208071]: auth: Debug:
>>>>> sql(user at redacted,client-ip,<ZJWX2zy4VzO5j7YD>): Performing passdb lookup
>>>>> Jan 6 16:20:05 mail dovecot[2208071]: auth: Debug:
>>>>> sql(user at redacted,client-ip,<ZJWX2zy4VzO5j7YD>): cache hit:
>>>>> <hidden>#011host=127.0.0.1#011destuser=user at redacted#011pass=THIS_SHOULD_NOT_GET_LOGGED#011nologin=Y#011nodelay=Y#011proxy=Y
>>>>> Jan 6 16:20:05 mail dovecot[2208071]: auth: Debug:
>>>>> sql(user at redacted,client-ip,<ZJWX2zy4VzO5j7YD>): Finished passdb lookup
>>>>> Jan 6 16:20:05 mail dovecot[2208071]: auth: Debug:
>>>>> auth(user at redacted,client-ip,<ZJWX2zy4VzO5j7YD>): Auth request finished
>>>>> Jan 6 16:20:05 mail dovecot[2208071]: auth: Debug: client passdb out:
>>>>> FAIL#011215#011user=user at redacted#011nodelay#011pass=<hidden>#011nodelay=Y
>>>>> Jan 6 16:20:05 mail dovecot[2208071]: pop3-login: Debug: Ignoring
>>>>> unknown passdb extra field: nodelay
>>>>> Jan 6 16:20:05 mail dovecot[2208071]: pop3-login: Debug: Ignoring
>>>>> unknown passdb extra field: nodelay
>>>>> Jan 6 16:20:05 mail dovecot[2208071]: pop3-login: Disconnected (auth
>>>>> failed, 1 attempts in 0 secs): user=<user at redacted>, client-ip, APOP,
>>>>> TLS, TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)
>>>>> Jan 6 16:20:05 mail dovecot[2208071]: auth-worker(2208083): Debug: conn
>>>>> unix:auth-worker (pid=2208074,uid=489): Disconnected: Connection closed
>>>>> (fd=-1)
>>>>> Jan 6 16:20:05 mail dovecot[2208071]: auth: Fatal: master:
>>>>> service(auth): child 2208074 killed with signal 11 (core dumped)
>>>>>
>>>>> Jan 6 16:20:20 mail dovecot[2208071]: auth: Debug: client in:
>>>>> AUTH#011218#011APOP#011service=pop3#011secured=tls#011session=wXyB3Dy4W0i5j7YD#011lip=lan-ip#011rip=client-ip#011lport=995#011rport=18523#011local_name=mail#011resp=<hidden>
>>>>> Jan 6 16:20:20 mail dovecot[2208071]: auth: Debug:
>>>>> sql(user at redacted,client-ip,<wXyB3Dy4W0i5j7YD>): Performing passdb lookup
>>>>> Jan 6 16:20:20 mail dovecot[2208071]: auth: Debug:
>>>>> sql(user at redacted,client-ip,<wXyB3Dy4W0i5j7YD>): cache hit:
>>>>> <hidden>#011host=127.0.0.1#011destuser=user at redacted#011pass=THIS_SHOULD_NOT_GET_LOGGED#011nologin=Y#011nodelay=Y#011proxy=Y
>>>>> Jan 6 16:20:20 mail dovecot[2208071]: auth: Debug:
>>>>> sql(user at redacted,client-ip,<wXyB3Dy4W0i5j7YD>): Finished passdb lookup
>>>>> Jan 6 16:20:20 mail dovecot[2208071]: auth: Debug:
>>>>> auth(user at redacted,client-ip,<wXyB3Dy4W0i5j7YD>): Auth request finished
>>>>> Jan 6 16:20:20 mail dovecot[2208071]: auth: Debug: client passdb out:
>>>>> FAIL#011218#011user=user at redacted#011nodelay#011pass=<hidden>#011nodelay=Y
>>>>> Jan 6 16:20:20 mail dovecot[2208071]: pop3-login: Debug: Ignoring
>>>>> unknown passdb extra field: nodelay
>>>>> Jan 6 16:20:20 mail dovecot[2208071]: pop3-login: Debug: Ignoring
>>>>> unknown passdb extra field: nodelay
>>>>> Jan 6 16:20:20 mail dovecot[2208071]: pop3-login: Disconnected (auth
>>>>> failed, 1 attempts in 0 secs): user=<user at redacted>, client-ip, APOP,
>>>>> TLS, TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)
>>>>> Jan 6 16:20:20 mail dovecot[2208071]: auth-worker(2208392): Debug: conn
>>>>> unix:auth-worker (pid=2208385,uid=489): Disconnected: Connection closed
>>>>> (fd=-1)
>>>>> Jan 6 16:20:20 mail dovecot[2208071]: auth: Fatal: master:
>>>>> service(auth): child 2208385 killed with signal 11 (core dumped)
>>>>>
>>>>>
>>>>> Any help is appreciated thanks
>>>>>
>>>>> Harald
>>>>> --
>>>>> ITronic
>>>>>
>>>>> Harald Leithner
>>>>> Wiedner Hauptstraße 120/5.1, 1050 Wien, Austria
>>>>> Tel: +43-1-545 0 604
>>>>> Mobil: +43-699-123 78 4 78
>>>>> Mail: leithner at itronic.at | itronic.at
>>>>
>>>>
>>>>
>>>>
>>>>
>>>
>>> --
>>> ITronic
>>>
>>> Harald Leithner
>>> Wiedner Hauptstraße 120/5.1, 1050 Wien, Austria
>>> Tel: +43-1-545 0 604
>>> Mobil: +43-699-123 78 4 78
>>> Mail: leithner at itronic.at | itronic.at
>>
>>
>>
>>
>>
>
>
--
ITronic
Harald Leithner
Wiedner Hauptstraße 120/5.1, 1050 Wien, Austria
Tel: +43-1-545 0 604
Mobil: +43-699-123 78 4 78
Mail: leithner at itronic.at | itronic.at
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