dapphub / dapphub/ds-guard

sig collision?

Open
#2 2 comments 0 reactions 0 assignees View on GitHub
Dominant language
Solidity
Stars
24
Forks
27
PR merge metrics
No merged PRs in 30d

Description

Looks like ANY trick is fine for src/dest, but is there some fuckery that could happen with a malicious function signature `bytes4(uint32(-1))`? @dbrock

Contributor guide

No contributing guide indexed for this repository

Research direction

Start by tracing how src/dest and the 4-byte function signature are encoded and compared. Check the behavior of bytes4(uint32(-1)) and document whether a malicious signature can collide; done means a confirmed result with the relevant security implications recorded.

Written by the indexing model from the issue text.

Assessment

Tech stack
solidity
Domain
authorization, blockchain, security
Issue type
Bug
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
20/100

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