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Bug #1136

closed

negated app-layer-protocol FP on multi-TX flows

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

Status:
Closed
Priority:
Normal
Assignee:
Victor Julien
Target version:
2.0.1rc1
Affected Versions:
Effort:
Difficulty:
Label:

Description

When a negated app-layer-protocol is inspected against a multi tx protocol, it FP's on new TX's.

A rule like:

alert udp .... (app-layer-protocol:!dns; ...)

will alert on DNS traffic, even though we properly detected the protocol.

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