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Bug #562

closed

normal pattern and "chopped" pattern share id, leading to possible FP

Added by Victor Julien over 12 years ago. Updated about 12 years ago.

Status:
Closed
Priority:
High
Assignee:
Anoop Saldanha
Target version:
1.3.2
Affected Versions:
Effort:
Difficulty:
Label:

Description

detect validation trusts mpm, but due to shared id match of pattern may actually be a partial match

Please create a patch for 1.3.x and master branches.

Please also add a unit test to make sure a normal and a fp chop pattern won't get the same id.

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 #1

Updated by Victor Julien about 12 years ago

  • Priority changed from Normal to High
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 #2

Updated by Anoop Saldanha about 12 years ago

  • Status changed from Assigned to Resolved

There are 2 ways to fix this -

1. Update the pattern id retrieval.
2. Disable inspection bypass.

Solution (1) requires changes which not be advisable going into 1.3.2. - https://github.com/inliniac/suricata/pull/114

Solution (2) is the suggested and supplied solution for 1.3.x.

1.4beta, i.e. bug #574 will solve this using (1)

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 #3

Updated by Victor Julien about 12 years ago

  • Status changed from Resolved to Closed
  • % Done changed from 0 to 100
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