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Feature #1125

closed

smtp: improve protocol detection

Added by Victor Julien over 10 years ago. Updated 4 months ago.

Status:
Closed
Priority:
Low
Assignee:
Philippe Antoine
Target version:
8.0.0-beta1
Effort:
Difficulty:
Label:

Description

Currently SMTP is only detected if the client starts the conversation with HELO, EHLO or QUIT.

The server stream is not used for protocol detection.

Related issues 7 (3 open — 4 closed)

Related to Suricata - Bug #2978: IRC traffic parsed by FTPIn ProgressPhilippe AntoineActions
Related to Suricata - Task #2757: improve protocol detectionIn ReviewPhilippe AntoineActions
Related to Suricata - Bug #6283: FTP parsing yields in some cases smtp and http event typesRejectedOISF DevActions
Related to Suricata - Feature #6366: pop3 protocol detectionClosedPhilippe AntoineActions
Related to Suricata - Bug #6591: protodetect: ftp parsed as smtpNewOISF DevActions
Blocked by Suricata - Feature #2572: extend protocol detection to specify flow directionClosedVictor JulienActions
Blocked by Suricata - Bug #5769: Incomplete values for .stats."app_layer".flow.protoClosedPhilippe AntoineActions
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 #1

Updated by Victor Julien about 9 years ago

  • Target version changed from 3.0RC2 to 70
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 #2

Updated by Victor Julien over 6 years ago

  • Assignee changed from Tom DeCanio to OISF Dev
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 #3

Updated by Victor Julien over 6 years ago

  • Blocked by Feature #2572: extend protocol detection to specify flow direction added
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 #4

Updated by Victor Julien almost 6 years ago

  • Priority changed from Normal to High
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 #5

Updated by Victor Julien almost 6 years ago

  • Related to Task #2757: improve protocol detection added
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 #6

Updated by Victor Julien almost 6 years ago

  • Priority changed from High to Normal
  • Target version changed from 70 to 5.0beta1
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 #7

Updated by Victor Julien over 5 years ago

  • Priority changed from Normal to High
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 #8

Updated by Victor Julien over 5 years ago

  • Status changed from New to Assigned
  • Assignee changed from OISF Dev to Philippe Antoine
  • Priority changed from High to Normal
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 #9

Updated by Victor Julien over 5 years ago

  • Target version changed from 5.0beta1 to 5.0rc1
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 #10

Updated by Philippe Antoine over 5 years ago

  • Related to Bug #2978: IRC traffic parsed by FTP added
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 #11

Updated by Victor Julien about 5 years ago

  • Target version changed from 5.0rc1 to 6.0.0beta1
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 #12

Updated by Philippe Antoine almost 5 years ago

  • Related to deleted (Task #2757: improve protocol detection)
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 #13

Updated by Philippe Antoine almost 5 years ago

  • Blocked by Task #2757: improve protocol detection added
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 #14

Updated by Philippe Antoine over 4 years ago

  • Status changed from Assigned to Feedback

Waiting first for feedback on other related tickets

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 #16

Updated by Victor Julien over 4 years ago

  • Target version changed from 6.0.0beta1 to 7.0.0-beta1
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 #17

Updated by Philippe Antoine over 2 years ago

Both FTP and SMTP start with 220 from server (followed by either space or hyphen)

For SMTP, it is then supposed to be a valid domain name.
But there is no restriction for FTP

There can be (E)SMTP or FTP in the banner...

We can use the ports.

And we can maybe mark this detection as weak, so that client side detection overrides it...

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 #18

Updated by Philippe Antoine over 2 years ago

  • Status changed from Feedback to In Review
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 #19

Updated by Philippe Antoine over 2 years ago

  • Blocked by deleted (Task #2757: improve protocol detection)
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 #20

Updated by Philippe Antoine over 2 years ago

  • Related to Task #2757: improve protocol detection added
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 #21

Updated by Philippe Antoine about 2 years ago

  • Priority changed from Normal to Low
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 #22

Updated by Victor Julien about 2 years ago

  • Target version changed from 7.0.0-beta1 to 7.0.0-rc1
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 #23

Updated by Philippe Antoine almost 2 years ago

  • Blocked by Bug #5769: Incomplete values for .stats."app_layer".flow.proto added
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 #24

Updated by Victor Julien almost 2 years ago

  • Target version changed from 7.0.0-rc1 to 8.0.0-beta1
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 #25

Updated by Philippe Antoine about 1 year ago

  • Related to Bug #6283: FTP parsing yields in some cases smtp and http event types added
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 #26

Updated by Philippe Antoine about 1 year ago

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 #27

Updated by Philippe Antoine about 1 year ago

  • Target version changed from 8.0.0-beta1 to TBD
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 #28

Updated by Victor Julien 12 months ago

  • Related to Bug #6591: protodetect: ftp parsed as smtp added
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 #29

Updated by Philippe Antoine 6 months ago

  • Target version changed from TBD to 8.0.0-beta1
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 #30

Updated by Philippe Antoine 4 months ago

  • Status changed from In Review to Closed
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