Submission Details
Severity:
modifier nonReentrant() has a logic flaw
Summary
tstore(0,1), but check tload(1),tload(1) is always 0, so it won't revert
Vulnerability Details
modifier nonReentrant() {
assembly {
if tload(1) { revert(0, 0) }
tstore(0, 1)
}
_;
assembly {
tstore(0, 0)
}
}
Impact
Cannot protect against reentrancy vulnerabilities
Tools Used
Recommendations
modifier nonReentrant() {
assembly {
if tload(0) { revert(0, 0) } //
tstore(0, 1)
}
_;
assembly {
tstore(0, 0)
}
}
Updates
Lead Judging Commences
0xtimefliez 6 months ago
Submission Judgement Published Assigned finding tags:
Wrong value in nonReentrant modifier
Rewards breakdown
nSLOC
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100 EXP
20 EXP
2 EXP
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