019b477e-be40-72f5-a268-2ebc04440b6b
Open this run to answer one question: is this real attacker-relevant behavior with real impact, or just normal contract plumbing?
| ID | Type | Status | Attempts | Heartbeat |
|---|---|---|---|---|
| 24355 | artifact.fetch | complete | 1 / 3 | 3 months ago |
| 24356 | tool.cast_disasm | complete | 1 / 3 | 3 months ago |
| 67862 | analysis.bundle | complete | 1 / 3 | 1 week ago |
| 67863 | capability.graph | complete | 1 / 3 | 1 week ago |
| 67864 | detector.run | complete | 1 / 3 | 1 week ago |
| 67865 | validation.fork | complete | 1 / 3 | 1 week ago |
| 113530 | report.consolidate | complete | 1 / 6 | 1 week ago |
| 113531 | tool.slither | complete | 1 / 2 | 1 week ago |
'forge clean' running (wd: /tmp/slither-e9gys9mv)
'forge config --json' running
'forge build --build-info --skip ./test/** ./script/** --force' running (wd: /tmp/slither-e9gys9mv)
DutchAuction.claim() (contracts/Auction.sol#189-204) ignores return value by token.transfer(msg.sender,tokens) (contracts/Auction.sol#203-204)
DutchAuction.withdraw() (contracts/Auction.sol#216-237) ignores return value by token.transfer(owner,tokensLeft) (contracts/Auction.sol#237)
Reference: https://github.com/crytic/slither/wiki/Detector-Documentation#unchecked-transfer
DutchAuction.bid(uint256) (contracts/Auction.sol#170-189) uses a dangerous strict equality:
- tokensLeft == 0 (contracts/Auction.sol#186-187)
Reference: https://github.com/crytic/slither/wiki/Detector-Documentation#dangerous-strict-equalities
DutchAuction.getCurrentPrice().returnPrice (contracts/Auction.sol#130) is a local variable never initialized
Reference: https://github.com/crytic/slither/wiki/Detector-Documentation#uninitialized-local-variables
DutchAuction.startAuction(uint256,uint256,uint256,address[],bool) (contracts/Auction.sol#105-126) should emit an event for:
- finish = _finish (contracts/Auction.sol#113)
- startPrice = _startPrice (contracts/Auction.sol#113)
- minPrice = min (contracts/Auction.sol#114)
Reference: https://github.com/crytic/slither/wiki/Detector-Documentation#missing-events-arithmetic
DutchAuction.initialize(IERC20,address,address)._owner (contracts/Auction.sol#99-100) lacks a zero-check on :
- owner = _owner (contracts/Auction.sol#104)
DutchAuction.initialize(IERC20,address,address).factory_ (contracts/Auction.sol#100) lacks a zero-check on :
- factory = factory_ (contracts/Auction.sol#105)
Reference: https://github.com/crytic/slither/wiki/Detector-Documentation#missing-zero-address-validation
DutchAuction.getCurrentPrice() (contracts/Auction.sol#126-138) uses timestamp for comparisons
Dangerous comparisons:
- returnPrice < minPrice (contracts/Auction.sol#135-136)
DutchAuction.currentPrice() (contracts/Auction.sol#138-153) uses timestamp for comparisons
Dangerous comparisons:
- finish <= block.timestamp (contracts/Auction.sol#146)
- price < minPrice (contracts/Auction.sol#150-151)
DutchAuction.bid(uint256) (contracts/Auction.sol#170-189) uses timestamp for comparisons
Dangerous comparisons:
- require(bool,string)(msg.value >= currentPrice() * amount / 10 ** 18,Not enough payment) (contracts/Auction.sol#172-173)
- tokensLeft < amount (contracts/Auction.sol#178)
- tokensLeft == 0 (contracts/Auction.sol#186-187)
Reference: https://github.com/crytic/slither/wiki/Detector-Documentation#block-timestamp
DutchAuction.withdraw() (contracts/Auction.sol#216-237) compares to a boolean constant:
-require(bool,string)(hasClaimed == false,Has been claimed) (contracts/Auction.sol#219-220)
Reference: https://github.com/crytic/slither/wiki/Detector-Documentation#boolean-equality
Version constraint ^0.8.2 contains known severe issues (https://solidity.readthedocs.io/en/latest/bugs.html)
- FullInlinerNonExpressionSplitArgumentEvaluationOrder
- MissingSideEffectsOnSelectorAccess
- AbiReencodingHeadOverflowWithStaticArrayCleanup
- DirtyBytesArrayToStorage
- DataLocationChangeInInternalOverride
- NestedCalldataArrayAbiReencodingSizeValidation
- SignedImmutables
- ABIDecodeTwoDimensionalArrayMemory
- KeccakCaching.
It is used by:
- ^0.8.2 (contracts/Auction.sol#1-2)
Reference: https://github.com/crytic/slither/wiki/Detector-Documentation#incorrect-versions-of-solidity
Parameter DutchAuction.initialize(IERC20,address,address)._token (contracts/Auction.sol#99) is not in mixedCase
Parameter DutchAuction.initialize(IERC20,address,address)._owner (contracts/Auction.sol#99-100) is not in mixedCase
Parameter DutchAuction.startAuction(uint256,uint256,uint256,address[],bool)._startPrice (contracts/Auction.sol#107-108) is not in mixedCase
Parameter DutchAuction.startAuction(uint256,uint256,uint256,address[],bool)._finish (contracts/Auction.sol#108-109) is not in mixedCase
Reference: https://github.com/crytic/slither/wiki/Detector-Documentation#conformance-to-solidity-naming-conventions
Reentrancy in DutchAuction.fallback() (contracts/Auction.sol#205-216):
External calls:
- claim() (contracts/Auction.sol#209)
- address(msg.sender).transfer(refund) (contracts/Auction.sol#204)
- withdraw() (contracts/Auction.sol#213)
- owner.transfer(withdrawAmount - withdrawFee) (contracts/Auction.sol#235-237)
External calls sending eth:
- claim() (contracts/Auction.sol#209)
- address(msg.sender).transfer(refund) (contracts/Auction.sol#204)
- withdraw() (contracts/Auction.sol#213)
- IAlchemyRouter(alchemyRouter).deposit{value: withdrawFee}() (contracts/Auction.sol#234-235)
- owner.transfer(withdrawAmount - withdrawFee) (contracts/Auction.sol#235-237)
State variables written after the call(s):
- withdraw() (contracts/Auction.sol#213)
- hasClaimed = true (contracts/Auction.sol#224-225)
Reference: https://github.com/crytic/slither/wiki/Detector-Documentation#reentrancy-vulnerabilities-4
. analyzed (4 contracts with 100 detectors), 17 result(s) found
{
"solc": {
"status": "ok",
"use_rc": 0,
"version": "0.8.2",
"strategy": "solc-select",
"solc_path": "/var/www/tripwire/.venv/bin/solc",
"install_rc": 0,
"use_stderr": null,
"use_stdout": "Switched global version to 0.8.2",
"install_stderr": null,
"install_stdout": "Version '0.8.2' is already installed, skipping..."
},
"solc_args": "--base-path /tmp/slither-e9gys9mv --allow-paths /tmp/slither-e9gys9mv,/tmp/slither-e9gys9mv/lib,/tmp/slither-e9gys9mv/src",
"remappings": [],
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"contract_count": 0,
"contract_names": [],
"detector_count": 17,
"workspace_hash": "3143666af9ed8a44f4fb524da6c3285a66d2ec99f5b82f9571423dcfc5846b37",
"duration_seconds": 0.5349969863891602,
"solc_version_requested": "0.8.2"
}
OpenAI Codex v0.118.0 (research preview) -------- workdir: /tmp/codex-2z6y9voq model: gpt-5.4 provider: openai approval: never sandbox: read-only reasoning effort: high reasoning summaries: none session id: 019d5c96-c1b0-7680-b304-6b055d81e397 -------- user You are a security auditor. Audit this Solidity codebase for exploitable vulnerabilities. Focus on: reentrancy, access control, upgradeability/proxy issues, signature validation, oracle manipulation, accounting/invariant breaks, external call patterns, unchecked return values, and dangerous delegatecall. Scope rules: - You MUST fully read `AUDIT_BUNDLE.txt` before concluding. It contains the complete contents of all first-party Solidity sources in this workspace. - Treat `lib/` and `@openzeppelin/` as third-party dependencies; skip them unless there is a concrete misuse angle in first-party code. - If there are only dependency files and no first-party sources, set no_findings=true and explain in summary. Output MUST be valid JSON matching the provided schema. - If you find nothing meaningful: set no_findings=true and findings=[]. - Otherwise: set no_findings=false and include findings with severity/category/title and file/line locations when possible. Output constraints (IMPORTANT): - severity MUST be exactly one of: info, low, medium, high, critical (lowercase). - category MUST be exactly one of: access_control, reentrancy, math, oracle, upgradeability, auth, other. Keep summary short and concrete. warning: Codex could not find system bubblewrap on PATH. Please install bubblewrap with your package manager. Codex will use the vendored bubblewrap in the meantime. ERROR: You've hit your usage limit. Visit https://chatgpt.com/codex/settings/usage to purchase more credits or try again at Apr 8th, 2026 9:11 AM. ERROR: You've hit your usage limit. Visit https://chatgpt.com/codex/settings/usage to purchase more credits or try again at Apr 8th, 2026 9:11 AM.
{
"codex": {
"ran_at": "2026-04-05T07:41:18.711247+00:00",
"returncode": 1
},
"project": {
"mode": "source",
"file_count": 1,
"import_count": 0,
"first_party_contracts_count": 1
},
"summary": null,
"no_findings": null,
"schema_version": 1
}
00000000: CALLDATASIZE 00000001: RETURNDATASIZE 00000002: RETURNDATASIZE 00000003: CALLDATACOPY 00000004: RETURNDATASIZE 00000005: RETURNDATASIZE 00000006: RETURNDATASIZE 00000007: CALLDATASIZE 00000008: RETURNDATASIZE 00000009: PUSH20 0x9b58655d40150fbf99de182199d37b345f23029b 0000001e: GAS 0000001f: DELEGATECALL 00000020: RETURNDATASIZE 00000021: DUP3 00000022: DUP1 00000023: RETURNDATACOPY 00000024: SWAP1 00000025: RETURNDATASIZE 00000026: SWAP2 00000027: PUSH1 0x2b 00000029: JUMPI 0000002a: REVERT 0000002b: JUMPDEST 0000002c: RETURN
| Severity | Category | Tool | Title | Confidence | Validated | Confirmed | Details |
|---|---|---|---|---|---|---|---|
| critical | upgradeability | detector | Untrusted DELEGATECALL target reachable | 70 | yes | yes |
viewtrace_id: 0x6cd0302a1c2c1c3a0f4fab8785788b715737d96cef28557c7dd7e1eb460021a2
call_targets:
0x9b58655d40150fbf99de182199d37b345f23029b, 0xa62f7006ffc0dd245bf2acec993a4e20a37f6ced
target_varies:
yes
classification:
target_varies
validation_json{
"sink": "DELEGATECALL",
"errors": 0,
"status": "confirmed",
"attempts": 1,
"trace_id": "0x6cd0302a1c2c1c3a0f4fab8785788b715737d96cef28557c7dd7e1eb460021a2",
"confirmed": true,
"trace_mode": "callTracer",
"call_targets": [
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],
"matched_probe": null,
"target_varies": true,
"classification": "target_varies"
}
witness_json{
"notes": "heuristic witness; entrypoints are best-effort selectors with zeroed calldata",
"constraints": [],
"entrypoints": [
{
"calldata": "0x",
"selector": "fallback",
"calldata_variants": [
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]
}
]
}
evidence_json{
"examples": [
{
"pc": 31,
"opcode": "DELEGATECALL",
"returndata_checked": null,
"value_expression_category": "n/a",
"target_expression_category": "computed"
}
],
"guards_detected": [],
"delegatecall_count": 1,
"untrusted_delegatecall_count": 1
}
|
| high | other | slither | DutchAuction.claim() (contracts/Auction.sol#189-204) ignores return value by token.transfer(msg.sender,tokens) (contracts/Auction.sol#203-204) | 85 | no | — |
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}
|
| high | auth | slither | DutchAuction.withdraw() (contracts/Auction.sol#216-237) ignores return value by token.transfer(owner,tokensLeft) (contracts/Auction.sol#237) | 85 | no | — |
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"length": 4925,
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"filename_short": "contracts/Auction.sol",
"starting_column": 13,
"filename_absolute": "/tmp/slither-e9gys9mv/contracts/Auction.sol",
"filename_relative": "contracts/Auction.sol"
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"locations": [
{
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"name": "withdraw",
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{
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"description": "DutchAuction.withdraw() (contracts/Auction.sol#216-237) ignores return value by token.transfer(owner,tokensLeft) (contracts/Auction.sol#237)"
}
|