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Day 0 exploit regarding UnitIDs #323

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H-Park opened this issue Sep 24, 2019 · 1 comment
Closed

Day 0 exploit regarding UnitIDs #323

H-Park opened this issue Sep 24, 2019 · 1 comment

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@H-Park
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H-Park commented Sep 24, 2019 •
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The difference of IDs between sequentially created units, regardless of which player created them, is 262144 (for probes) plus/minus 2. This can be used to determine how many units your opponent has created since you last created a unit, which can be used to detect ling rushes and among other things.

Proposed fix: have the protocol make a mapping between real unit id and a random tag, then interchange them where appropriate.

See discussion on the discord regarding this.
@H-Park
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H-Park commented Sep 25, 2019

Closing issue, made a duplicate issue on the proto repo, as this is a proto fix, not an API fix

Blizzard/s2client-proto#161

@H-Park H-Park closed this as completed Sep 25, 2019
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@H-Park