openwall / openwall/john

Siemens S7, stop running around in circles.

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#1,098 2 comments 0 reactions 0 assignees View on GitHub

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enhancement
Dominant language
C
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Description

We've been too quick to make uneducated hacks in the Siemens S7 format lately. I have the feeling the current canonicalization (change *0* to *1*) is somewhat flawed. We should probably strip that field altogether in the canonical .pot representation.

BUT my bottom line is we should sort it out before we do anything now.

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

No files, tests, or entry points are named. Start by locating the Siemens S7 format handling and the canonical .pot representation, then review the existing *0* to *1* canonicalization. Work is not ready until the intended canonical form and validation criteria are agreed.

Written by the indexing model from the issue text.

Assessment

Domain
security
Issue type
Refactor
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
20/100

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