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Added support for specific SMTP-smuggling logging #186

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Merged
merged 1 commit into from
Jan 24, 2024
Merged

Added support for specific SMTP-smuggling logging #186

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Added support for specific SMTP-smuggling logging
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@whyscream
whyscream committed Jan 24, 2024
commit a724d9d713ab8038ef8b64e45b98e75c88fcc1c3
2 changes: 1 addition & 1 deletion postfix.grok
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Expand Up @@ -27,7 +27,7 @@ POSTFIX_TLSCONN (Anonymous|Trusted|Untrusted|Verified) TLS connection establishe
POSTFIX_TLSVERIFICATION certificate verification failed for %{POSTFIX_RELAY_INFO}: %{GREEDYDATA:postfix_tls_error}

POSTFIX_DELAYS %{NUMBER:postfix_delay_before_qmgr}/%{NUMBER:postfix_delay_in_qmgr}/%{NUMBER:postfix_delay_conn_setup}/%{NUMBER:postfix_delay_transmission}
POSTFIX_LOSTCONN (Connection timed out|No route to host|Connection refused|Network is unreachable|lost connection|timeout|SSL_accept error|-1|Address not available|Operation timed out|Address not available|Operation timed out)
POSTFIX_LOSTCONN (Connection timed out|No route to host|Connection refused|Network is unreachable|lost connection|timeout|SSL_accept error|-1|Address not available|Operation timed out|Address not available|Operation timed out|bare <LF> received)
POSTFIX_LOSTCONN_REASONS (receiving the initial server greeting|sending message body|sending end of data -- message may be sent more than once|sending %{POSTFIX_SMTP_STAGE:postfix_smtp_stage})
POSTFIX_PROXY_MESSAGE (%{POSTFIX_STATUS_CODE:postfix_proxy_status_code} )?(%{POSTFIX_STATUS_CODE_ENHANCED:postfix_proxy_status_code_enhanced})?.*
POSTFIX_COMMAND_COUNTER_DATA (helo=(%{INT:postfix_cmd_helo_accepted}/)?%{INT:postfix_cmd_helo} )?(ehlo=(%{INT:postfix_cmd_ehlo_accepted}/)?%{INT:postfix_cmd_ehlo} )?(starttls=(%{INT:postfix_cmd_starttls_accepted}/)?%{INT:postfix_cmd_starttls} )?(auth=(%{INT:postfix_cmd_auth_accepted}/)?%{INT:postfix_cmd_auth} )?(mail=(%{INT:postfix_cmd_mail_accepted}/)?%{INT:postfix_cmd_mail} )?(rcpt=(%{INT:postfix_cmd_rcpt_accepted}/)?%{INT:postfix_cmd_rcpt} )?(bdat=(%{INT:postfix_cmd_bdat_accepted}/)?%{INT:postfix_cmd_bdat} )?(data=(%{INT:postfix_cmd_data_accepted}/)?%{INT:postfix_cmd_data} )?(rset=(%{INT:postfix_cmd_rset_accepted}/)?%{INT:postfix_cmd_rset} )?(noop=(%{INT:postfix_cmd_noop_accepted}/)?%{INT:postfix_cmd_noop} )?(quit=(%{INT:postfix_cmd_quit_accepted}/)?%{INT:postfix_cmd_quit} )?(unknown=(%{INT:postfix_cmd_unknown_accepted}/)?%{INT:postfix_cmd_unknown} )?commands=(%{INT:postfix_cmd_count_accepted}/)?%{INT:postfix_cmd_count}
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7 changes: 7 additions & 0 deletions test/smtpd_0036.yaml
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@@ -0,0 +1,7 @@
pattern: ^%{POSTFIX_SMTPD}$
data: "bare <LF> received after CONNECT from example.net[1.2.3.4]"
results:
postfix_smtpd_lostconn_data: bare <LF> received
postfix_smtp_stage: CONNECT
postfix_client_hostname: example.net
postfix_client_ip: 1.2.3.4