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Feature #1125

open

smtp: improve protocol detection

Added by Victor Julien over 8 years ago. Updated about 2 months ago.

Status:
In Review
Priority:
Normal
Target version:
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 3 (2 open1 closed)

Related to Bug #2978: IRC traffic parsed by FTPNewPhilippe AntoineActions
Related to Feature #2757: improve protocol detectionIn ReviewPhilippe AntoineActions
Blocked by Feature #2572: extend protocol detection to specify flow directionClosedVictor JulienActions
Actions #1

Updated by Victor Julien almost 7 years ago

  • Target version changed from 3.0RC2 to 70
Actions #2

Updated by Victor Julien about 4 years ago

  • Assignee changed from Tom DeCanio to OISF Dev
Actions #3

Updated by Victor Julien about 4 years ago

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

Updated by Victor Julien over 3 years ago

  • Priority changed from Normal to High
Actions #5

Updated by Victor Julien over 3 years ago

Actions #6

Updated by Victor Julien over 3 years ago

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

Updated by Victor Julien over 3 years ago

  • Priority changed from Normal to High
Actions #8

Updated by Victor Julien over 3 years ago

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

Updated by Victor Julien over 3 years ago

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

Updated by Philippe Antoine about 3 years ago

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

Updated by Victor Julien almost 3 years ago

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

Updated by Philippe Antoine over 2 years ago

Actions #13

Updated by Philippe Antoine over 2 years ago

Actions #14

Updated by Philippe Antoine over 2 years ago

  • Status changed from Assigned to Feedback

Waiting first for feedback on other related tickets

Actions #16

Updated by Victor Julien about 2 years ago

  • Target version changed from 6.0.0beta1 to 7.0rc1
Actions #17

Updated by Philippe Antoine about 2 months 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...

Actions #18

Updated by Philippe Antoine about 2 months ago

  • Status changed from Feedback to In Review
Actions #19

Updated by Philippe Antoine about 1 month ago

Actions #20

Updated by Philippe Antoine about 1 month ago

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