019c0eab-909f-728c-9614-1375a52b5654
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 |
|---|---|---|---|---|
| 42422 | artifact.fetch | complete | 1 / 3 | 2 months ago |
| 42423 | proxy.resolve | complete | 1 / 3 | 2 months ago |
| 42424 | tool.cast_disasm | complete | 1 / 3 | 2 months ago |
| 42425 | analysis.bundle | complete | 1 / 3 | 2 months ago |
| 42426 | capability.graph | complete | 1 / 3 | 2 months ago |
| 42427 | detector.run | complete | 1 / 3 | 2 months ago |
| 42428 | validation.fork | complete | 1 / 3 | 2 months ago |
| 42503 | report.consolidate | complete | 1 / 6 | 2 months ago |
| 42504 | tool.slither | complete | 1 / 2 | 2 months ago |
{
"status": "not_proxy"
}
'forge clean' running (wd: /tmp/slither-8q82pt4q) 'forge config --json' running 'forge build --build-info --skip ./test/** ./script/** --force' running (wd: /tmp/slither-8q82pt4q) SimpleERC20Escrow.pay(address,uint256) (contracts/Contract.sol#34-38) ignores return value by token.transfer(recipient,amount) (contracts/Contract.sol#37-38) Reference: https://github.com/crytic/slither/wiki/Detector-Documentation#unchecked-transfer Version constraint ^0.8.13 contains known severe issues (https://solidity.readthedocs.io/en/latest/bugs.html) - VerbatimInvalidDeduplication - FullInlinerNonExpressionSplitArgumentEvaluationOrder - MissingSideEffectsOnSelectorAccess - StorageWriteRemovalBeforeConditionalTermination - AbiReencodingHeadOverflowWithStaticArrayCleanup - DirtyBytesArrayToStorage - InlineAssemblyMemorySideEffects - DataLocationChangeInInternalOverride - NestedCalldataArrayAbiReencodingSizeValidation. It is used by: - ^0.8.13 (contracts/Contract.sol#1-2) Reference: https://github.com/crytic/slither/wiki/Detector-Documentation#incorrect-versions-of-solidity Parameter SimpleERC20Escrow.initialize(IERC20,address)._token (contracts/Contract.sol#25) is not in mixedCase Reference: https://github.com/crytic/slither/wiki/Detector-Documentation#conformance-to-solidity-naming-conventions . analyzed (2 contracts with 100 detectors), 3 result(s) found
{
"solc": {
"status": "ok",
"use_rc": 0,
"version": "0.8.13",
"strategy": "solc-select",
"solc_path": "/var/www/tripwire/.venv/bin/solc",
"install_rc": 0,
"use_stderr": null,
"use_stdout": "Switched global version to 0.8.13",
"install_stderr": null,
"install_stdout": "Version '0.8.13' is already installed, skipping..."
},
"solc_args": "--base-path /tmp/slither-8q82pt4q --allow-paths /tmp/slither-8q82pt4q,/tmp/slither-8q82pt4q/lib,/tmp/slither-8q82pt4q/src",
"remappings": [],
"source_files": [
"contracts/Contract.sol"
],
"contract_count": 0,
"contract_names": [],
"detector_count": 3,
"workspace_hash": "ac180ace9007f3d65608af4ec47c99752171c820406ab397107213d9551b5709",
"duration_seconds": 0.4837830066680908,
"solc_version_requested": "0.8.13"
}
{"no_findings":false,"summary":"Two issues: proxy initialization can be hijacked to set an arbitrary market, and ERC20 transfers ignore return values which can mask failed payments.","findings":[{"severity":"high","category":"upgradeability","title":"Unprotected proxy initializer allows market takeover","exploit_scenario":"If a proxy is deployed but `initialize` is not called atomically by a trusted factory, any external caller can invoke it first, set themselves as `market`, and then call `pay` to drain escrowed tokens.","recommendation":"Restrict initialization to a trusted deployer/factory and use an initializer guard pattern (e.g., OpenZeppelin `initializer` + `onlyProxy`) or pass the expected market address and verify `msg.sender` against it.","evidence":"`initialize` is public and only checks `market == address(0)`, then sets `market = msg.sender`.","locations":["contracts/Contract.sol:25","contracts/Contract.sol:26","contracts/Contract.sol:27"]},{"severity":"low","category":"other","title":"Unchecked ERC20 transfer return value can mask failed payouts","exploit_scenario":"For ERC20s that return `false` instead of reverting, `pay` will appear to succeed even if no tokens moved, which can desynchronize accounting in the calling market or allow collateral release without payment.","recommendation":"Require the return value or use OpenZeppelin `SafeERC20` to handle non‑standard tokens safely.","evidence":"`token.transfer(recipient, amount);` return value is ignored.","locations":["contracts/Contract.sol:36","contracts/Contract.sol:38"]}]}
OpenAI Codex v0.77.0 (research preview)
--------
workdir: /tmp/codex-ou9p0q5p
model: gpt-5.2-codex
provider: openai
approval: never
sandbox: read-only
reasoning effort: high
reasoning summaries: auto
session id: 019c0fcf-082e-7791-a6b4-01815a09d788
--------
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.
mcp startup: no servers
exec
/bin/bash -lc ls in /tmp/codex-ou9p0q5p succeeded in 6ms:
AUDIT_BUNDLE.txt
codex-output-schema.json
contracts
exec
/bin/bash -lc 'cat AUDIT_BUNDLE.txt' in /tmp/codex-ou9p0q5p succeeded in 6ms:
This file concatenates the full contents of first-party Solidity sources for auditing.
Do not treat dependency code under lib/ or @openzeppelin/ as first-party.
================================================================================
FILE: contracts/Contract.sol
================================================================================
// SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.8.13;
/// @dev Caution: We assume all failed transfers cause reverts and ignore the returned bool.
interface IERC20 {
function transfer(address,uint) external returns (bool);
function transferFrom(address,address,uint) external returns (bool);
function balanceOf(address) external view returns (uint);
}
/**
@title Simple ERC20 Escrow
@notice Collateral is stored in unique escrow contracts for every user and every market.
@dev Caution: This is a proxy implementation. Follow proxy pattern best practices
exec
/bin/bash -lc 'nl -ba contracts/Contract.sol' in /tmp/codex-ou9p0q5p succeeded in 6ms:
1 // SPDX-License-Identifier: UNLICENSED
2 pragma solidity ^0.8.13;
3
4 /// @dev Caution: We assume all failed transfers cause reverts and ignore the returned bool.
5 interface IERC20 {
6 function transfer(address,uint) external returns (bool);
7 function transferFrom(address,address,uint) external returns (bool);
8 function balanceOf(address) external view returns (uint);
9 }
10
11 /**
12 @title Simple ERC20 Escrow
13 @notice Collateral is stored in unique escrow contracts for every user and every market.
14 @dev Caution: This is a proxy implementation. Follow proxy pattern best practices
15 */
16 contract SimpleERC20Escrow {
17 address public market;
18 IERC20 public token;
19
20 /**
codex
{"no_findings":false,"summary":"Two issues: proxy initialization can be hijacked to set an arbitrary market, and ERC20 transfers ignore return values which can mask failed payments.","findings":[{"severity":"high","category":"upgradeability","title":"Unprotected proxy initializer allows market takeover","exploit_scenario":"If a proxy is deployed but `initialize` is not called atomically by a trusted factory, any external caller can invoke it first, set themselves as `market`, and then call `pay` to drain escrowed tokens.","recommendation":"Restrict initialization to a trusted deployer/factory and use an initializer guard pattern (e.g., OpenZeppelin `initializer` + `onlyProxy`) or pass the expected market address and verify `msg.sender` against it.","evidence":"`initialize` is public and only checks `market == address(0)`, then sets `market = msg.sender`.","locations":["contracts/Contract.sol:25","contracts/Contract.sol:26","contracts/Contract.sol:27"]},{"severity":"low","category":"other","title":"Unchecked ERC20 transfer return value can mask failed payouts","exploit_scenario":"For ERC20s that return `false` instead of reverting, `pay` will appear to succeed even if no tokens moved, which can desynchronize accounting in the calling market or allow collateral release without payment.","recommendation":"Require the return value or use OpenZeppelin `SafeERC20` to handle non‑standard tokens safely.","evidence":"`token.transfer(recipient, amount);` return value is ignored.","locations":["contracts/Contract.sol:36","contracts/Contract.sol:38"]}]}
tokens used
3,872
{
"codex": {
"ran_at": "2026-01-30T16:49:35.888302+00:00",
"returncode": 0
},
"project": {
"mode": "source",
"file_count": 1,
"import_count": 0,
"first_party_contracts_count": 1
},
"summary": "Two issues: proxy initialization can be hijacked to set an arbitrary market, and ERC20 transfers ignore return values which can mask failed payments.",
"raw_final": {
"summary": "Two issues: proxy initialization can be hijacked to set an arbitrary market, and ERC20 transfers ignore return values which can mask failed payments.",
"findings": [
{
"title": "Unprotected proxy initializer allows market takeover",
"category": "upgradeability",
"evidence": "`initialize` is public and only checks `market == address(0)`, then sets `market = msg.sender`.",
"severity": "high",
"locations": [
"contracts/Contract.sol:25",
"contracts/Contract.sol:26",
"contracts/Contract.sol:27"
],
"recommendation": "Restrict initialization to a trusted deployer/factory and use an initializer guard pattern (e.g., OpenZeppelin `initializer` + `onlyProxy`) or pass the expected market address and verify `msg.sender` against it.",
"exploit_scenario": "If a proxy is deployed but `initialize` is not called atomically by a trusted factory, any external caller can invoke it first, set themselves as `market`, and then call `pay` to drain escrowed tokens."
},
{
"title": "Unchecked ERC20 transfer return value can mask failed payouts",
"category": "other",
"evidence": "`token.transfer(recipient, amount);` return value is ignored.",
"severity": "low",
"locations": [
"contracts/Contract.sol:36",
"contracts/Contract.sol:38"
],
"recommendation": "Require the return value or use OpenZeppelin `SafeERC20` to handle non\u2011standard tokens safely.",
"exploit_scenario": "For ERC20s that return `false` instead of reverting, `pay` will appear to succeed even if no tokens moved, which can desynchronize accounting in the calling market or allow collateral release without payment."
}
],
"no_findings": false
},
"no_findings": false,
"schema_version": 1
}
00000000: PUSH1 0x80 00000002: PUSH1 0x40 00000004: MSTORE 00000005: CALLVALUE 00000006: DUP1 00000007: ISZERO 00000008: PUSH2 0x0010 0000000b: JUMPI 0000000c: PUSH1 0x00 0000000e: DUP1 0000000f: REVERT 00000010: JUMPDEST 00000011: POP 00000012: PUSH1 0x04 00000014: CALLDATASIZE 00000015: LT 00000016: PUSH2 0x0062 00000019: JUMPI 0000001a: PUSH1 0x00 0000001c: CALLDATALOAD 0000001d: PUSH1 0xe0 0000001f: SHR 00000020: DUP1 00000021: PUSH4 0x12c93f59 00000026: EQ 00000027: PUSH2 0x0067 0000002a: JUMPI 0000002b: DUP1 0000002c: PUSH4 0x485cc955 00000031: EQ 00000032: PUSH2 0x0069 00000035: JUMPI 00000036: DUP1 00000037: PUSH4 0x80f55605 0000003c: EQ 0000003d: PUSH2 0x007c 00000040: JUMPI 00000041: DUP1 00000042: PUSH4 0xb69ef8a8 00000047: EQ 00000048: PUSH2 0x00ac 0000004b: JUMPI 0000004c: DUP1 0000004d: PUSH4 0xc4076876 00000052: EQ 00000053: PUSH2 0x00c2 00000056: JUMPI 00000057: DUP1 00000058: PUSH4 0xfc0c546a 0000005d: EQ 0000005e: PUSH2 0x00d5 00000061: JUMPI 00000062: JUMPDEST 00000063: PUSH1 0x00 00000065: DUP1 00000066: REVERT 00000067: JUMPDEST 00000068: STOP 00000069: JUMPDEST 0000006a: PUSH2 0x0067 0000006d: PUSH2 0x0077 00000070: CALLDATASIZE 00000071: PUSH1 0x04 00000073: PUSH2 0x02bb 00000076: JUMP 00000077: JUMPDEST 00000078: PUSH2 0x00e8 0000007b: JUMP 0000007c: JUMPDEST 0000007d: PUSH1 0x00 0000007f: SLOAD 00000080: PUSH2 0x008f 00000083: SWAP1 00000084: PUSH1 0x01 00000086: PUSH1 0x01 00000088: PUSH1 0xa0 0000008a: SHL 0000008b: SUB 0000008c: AND 0000008d: DUP2 0000008e: JUMP 0000008f: JUMPDEST 00000090: PUSH1 0x40 00000092: MLOAD 00000093: PUSH1 0x01 00000095: PUSH1 0x01 00000097: PUSH1 0xa0 00000099: SHL 0000009a: SUB 0000009b: SWAP1 0000009c: SWAP2 0000009d: AND 0000009e: DUP2 0000009f: MSTORE 000000a0: PUSH1 0x20 000000a2: ADD 000000a3: JUMPDEST 000000a4: PUSH1 0x40 000000a6: MLOAD 000000a7: DUP1 000000a8: SWAP2 000000a9: SUB 000000aa: SWAP1 000000ab: RETURN 000000ac: JUMPDEST 000000ad: PUSH2 0x00b4 000000b0: PUSH2 0x016d 000000b3: JUMP 000000b4: JUMPDEST 000000b5: PUSH1 0x40 000000b7: MLOAD 000000b8: SWAP1 000000b9: DUP2 000000ba: MSTORE 000000bb: PUSH1 0x20 000000bd: ADD 000000be: PUSH2 0x00a3 000000c1: JUMP 000000c2: JUMPDEST 000000c3: PUSH2 0x0067 000000c6: PUSH2 0x00d0 000000c9: CALLDATASIZE 000000ca: PUSH1 0x04 000000cc: PUSH2 0x02f4 000000cf: JUMP 000000d0: JUMPDEST 000000d1: PUSH2 0x01df 000000d4: JUMP 000000d5: JUMPDEST 000000d6: PUSH1 0x01 000000d8: SLOAD 000000d9: PUSH2 0x008f 000000dc: SWAP1 000000dd: PUSH1 0x01 000000df: PUSH1 0x01 000000e1: PUSH1 0xa0 000000e3: SHL 000000e4: SUB 000000e5: AND 000000e6: DUP2 000000e7: JUMP 000000e8: JUMPDEST 000000e9: PUSH1 0x00 000000eb: SLOAD 000000ec: PUSH1 0x01 000000ee: PUSH1 0x01 000000f0: PUSH1 0xa0 000000f2: SHL 000000f3: SUB 000000f4: AND 000000f5: ISZERO 000000f6: PUSH2 0x013c 000000f9: JUMPI 000000fa: PUSH1 0x40 000000fc: MLOAD 000000fd: PUSH3 0x461bcd 00000101: PUSH1 0xe5 00000103: SHL 00000104: DUP2 00000105: MSTORE 00000106: PUSH1 0x20 00000108: PUSH1 0x04 0000010a: DUP3 0000010b: ADD 0000010c: MSTORE 0000010d: PUSH1 0x13 0000010f: PUSH1 0x24 00000111: DUP3 00000112: ADD 00000113: MSTORE 00000114: PUSH19 0x10531491505116481253925512505312569151 00000128: PUSH1 0x6a 0000012a: SHL 0000012b: PUSH1 0x44 0000012d: DUP3 0000012e: ADD 0000012f: MSTORE 00000130: PUSH1 0x64 00000132: ADD 00000133: JUMPDEST 00000134: PUSH1 0x40 00000136: MLOAD 00000137: DUP1 00000138: SWAP2 00000139: SUB 0000013a: SWAP1 0000013b: REVERT 0000013c: JUMPDEST 0000013d: POP 0000013e: PUSH1 0x00 00000140: DUP1 00000141: SLOAD 00000142: CALLER 00000143: PUSH1 0x01 00000145: PUSH1 0x01 00000147: PUSH1 0xa0 00000149: SHL 0000014a: SUB 0000014b: NOT 0000014c: SWAP2 0000014d: DUP3 0000014e: AND 0000014f: OR 00000150: SWAP1 00000151: SWAP2 00000152: SSTORE 00000153: PUSH1 0x01 00000155: DUP1 00000156: SLOAD 00000157: SWAP1 00000158: SWAP2 00000159: AND 0000015a: PUSH1 0x01 0000015c: PUSH1 0x01 0000015e: PUSH1 0xa0 00000160: SHL 00000161: SUB 00000162: SWAP3 00000163: SWAP1 00000164: SWAP3 00000165: AND 00000166: SWAP2 00000167: SWAP1 00000168: SWAP2 00000169: OR 0000016a: SWAP1 0000016b: SSTORE 0000016c: JUMP 0000016d: JUMPDEST 0000016e: PUSH1 0x01 00000170: SLOAD 00000171: PUSH1 0x40 00000173: MLOAD 00000174: PUSH4 0x70a08231 00000179: PUSH1 0xe0 0000017b: SHL 0000017c: DUP2 0000017d: MSTORE 0000017e: ADDRESS 0000017f: PUSH1 0x04 00000181: DUP3 00000182: ADD 00000183: MSTORE 00000184: PUSH1 0x00 00000186: SWAP2 00000187: PUSH1 0x01 00000189: PUSH1 0x01 0000018b: PUSH1 0xa0 0000018d: SHL 0000018e: SUB 0000018f: AND 00000190: SWAP1 00000191: PUSH4 0x70a08231 00000196: SWAP1 00000197: PUSH1 0x24 00000199: ADD 0000019a: PUSH1 0x20 0000019c: PUSH1 0x40 0000019e: MLOAD 0000019f: DUP1 000001a0: DUP4 000001a1: SUB 000001a2: DUP2 000001a3: DUP7 000001a4: GAS 000001a5: STATICCALL 000001a6: ISZERO 000001a7: DUP1 000001a8: ISZERO 000001a9: PUSH2 0x01b6 000001ac: JUMPI 000001ad: RETURNDATASIZE 000001ae: PUSH1 0x00 000001b0: DUP1 000001b1: RETURNDATACOPY 000001b2: RETURNDATASIZE 000001b3: PUSH1 0x00 000001b5: REVERT 000001b6: JUMPDEST 000001b7: POP 000001b8: POP 000001b9: POP 000001ba: POP 000001bb: PUSH1 0x40 000001bd: MLOAD 000001be: RETURNDATASIZE 000001bf: PUSH1 0x1f 000001c1: NOT 000001c2: PUSH1 0x1f 000001c4: DUP3 000001c5: ADD 000001c6: AND 000001c7: DUP3 000001c8: ADD 000001c9: DUP1 000001ca: PUSH1 0x40 000001cc: MSTORE 000001cd: POP 000001ce: DUP2 000001cf: ADD 000001d0: SWAP1 000001d1: PUSH2 0x01da 000001d4: SWAP2 000001d5: SWAP1 000001d6: PUSH2 0x0320 000001d9: JUMP 000001da: JUMPDEST 000001db: SWAP1 000001dc: POP 000001dd: SWAP1 000001de: JUMP 000001df: JUMPDEST 000001e0: PUSH1 0x00 000001e2: SLOAD 000001e3: PUSH1 0x01 000001e5: PUSH1 0x01 000001e7: PUSH1 0xa0 000001e9: SHL 000001ea: SUB 000001eb: AND 000001ec: CALLER 000001ed: EQ 000001ee: PUSH2 0x0227 000001f1: JUMPI 000001f2: PUSH1 0x40 000001f4: MLOAD 000001f5: PUSH3 0x461bcd 000001f9: PUSH1 0xe5 000001fb: SHL 000001fc: DUP2 000001fd: MSTORE 000001fe: PUSH1 0x20 00000200: PUSH1 0x04 00000202: DUP3 00000203: ADD 00000204: MSTORE 00000205: PUSH1 0x0b 00000207: PUSH1 0x24 00000209: DUP3 0000020a: ADD 0000020b: MSTORE 0000020c: PUSH11 0x13d393164813505492d155 00000218: PUSH1 0xaa 0000021a: SHL 0000021b: PUSH1 0x44 0000021d: DUP3 0000021e: ADD 0000021f: MSTORE 00000220: PUSH1 0x64 00000222: ADD 00000223: PUSH2 0x0133 00000226: JUMP 00000227: JUMPDEST 00000228: PUSH1 0x01 0000022a: SLOAD 0000022b: PUSH1 0x40 0000022d: MLOAD 0000022e: PUSH4 0xa9059cbb 00000233: PUSH1 0xe0 00000235: SHL 00000236: DUP2 00000237: MSTORE 00000238: PUSH1 0x01 0000023a: PUSH1 0x01 0000023c: PUSH1 0xa0 0000023e: SHL 0000023f: SUB 00000240: DUP5 00000241: DUP2 00000242: AND 00000243: PUSH1 0x04 00000245: DUP4 00000246: ADD 00000247: MSTORE 00000248: PUSH1 0x24 0000024a: DUP3 0000024b: ADD 0000024c: DUP5 0000024d: SWAP1 0000024e: MSTORE 0000024f: SWAP1 00000250: SWAP2 00000251: AND 00000252: SWAP1 00000253: PUSH4 0xa9059cbb 00000258: SWAP1 00000259: PUSH1 0x44 0000025b: ADD 0000025c: PUSH1 0x20 0000025e: PUSH1 0x40 00000260: MLOAD 00000261: DUP1 00000262: DUP4 00000263: SUB 00000264: DUP2 00000265: PUSH1 0x00 00000267: DUP8 00000268: GAS 00000269: CALL 0000026a: ISZERO 0000026b: DUP1 0000026c: ISZERO 0000026d: PUSH2 0x027a 00000270: JUMPI 00000271: RETURNDATASIZE 00000272: PUSH1 0x00 00000274: DUP1 00000275: RETURNDATACOPY 00000276: RETURNDATASIZE 00000277: PUSH1 0x00 00000279: REVERT 0000027a: JUMPDEST 0000027b: POP 0000027c: POP 0000027d: POP 0000027e: POP 0000027f: PUSH1 0x40 00000281: MLOAD 00000282: RETURNDATASIZE 00000283: PUSH1 0x1f 00000285: NOT 00000286: PUSH1 0x1f 00000288: DUP3 00000289: ADD 0000028a: AND 0000028b: DUP3 0000028c: ADD 0000028d: DUP1 0000028e: PUSH1 0x40 00000290: MSTORE 00000291: POP 00000292: DUP2 00000293: ADD 00000294: SWAP1 00000295: PUSH2 0x029e 00000298: SWAP2 00000299: SWAP1 0000029a: PUSH2 0x0339 0000029d: JUMP 0000029e: JUMPDEST 0000029f: POP 000002a0: POP 000002a1: POP 000002a2: JUMP 000002a3: JUMPDEST 000002a4: PUSH1 0x01 000002a6: PUSH1 0x01 000002a8: PUSH1 0xa0 000002aa: SHL 000002ab: SUB 000002ac: DUP2 000002ad: AND 000002ae: DUP2 000002af: EQ 000002b0: PUSH2 0x02b8 000002b3: JUMPI 000002b4: PUSH1 0x00 000002b6: DUP1 000002b7: REVERT 000002b8: JUMPDEST 000002b9: POP 000002ba: JUMP 000002bb: JUMPDEST 000002bc: PUSH1 0x00 000002be: DUP1 000002bf: PUSH1 0x40 000002c1: DUP4 000002c2: DUP6 000002c3: SUB 000002c4: SLT 000002c5: ISZERO 000002c6: PUSH2 0x02ce 000002c9: JUMPI 000002ca: PUSH1 0x00 000002cc: DUP1 000002cd: REVERT 000002ce: JUMPDEST 000002cf: DUP3 000002d0: CALLDATALOAD 000002d1: PUSH2 0x02d9 000002d4: DUP2 000002d5: PUSH2 0x02a3 000002d8: JUMP 000002d9: JUMPDEST 000002da: SWAP2 000002db: POP 000002dc: PUSH1 0x20 000002de: DUP4 000002df: ADD 000002e0: CALLDATALOAD 000002e1: PUSH2 0x02e9 000002e4: DUP2 000002e5: PUSH2 0x02a3 000002e8: JUMP 000002e9: JUMPDEST 000002ea: DUP1 000002eb: SWAP2 000002ec: POP 000002ed: POP 000002ee: SWAP3 000002ef: POP 000002f0: SWAP3 000002f1: SWAP1 000002f2: POP 000002f3: JUMP 000002f4: JUMPDEST 000002f5: PUSH1 0x00 000002f7: DUP1 000002f8: PUSH1 0x40 000002fa: DUP4 000002fb: DUP6 000002fc: SUB 000002fd: SLT 000002fe: ISZERO 000002ff: PUSH2 0x0307 00000302: JUMPI 00000303: PUSH1 0x00 00000305: DUP1 00000306: REVERT 00000307: JUMPDEST 00000308: DUP3 00000309: CALLDATALOAD 0000030a: PUSH2 0x0312 0000030d: DUP2 0000030e: PUSH2 0x02a3 00000311: JUMP 00000312: JUMPDEST 00000313: SWAP5 00000314: PUSH1 0x20 00000316: SWAP4 00000317: SWAP1 00000318: SWAP4 00000319: ADD 0000031a: CALLDATALOAD 0000031b: SWAP4 0000031c: POP 0000031d: POP 0000031e: POP 0000031f: JUMP 00000320: JUMPDEST 00000321: PUSH1 0x00 00000323: PUSH1 0x20 00000325: DUP3 00000326: DUP5 00000327: SUB 00000328: SLT 00000329: ISZERO 0000032a: PUSH2 0x0332 0000032d: JUMPI 0000032e: PUSH1 0x00 00000330: DUP1 00000331: REVERT 00000332: JUMPDEST 00000333: POP 00000334: MLOAD 00000335: SWAP2 00000336: SWAP1 00000337: POP 00000338: JUMP 00000339: JUMPDEST 0000033a: PUSH1 0x00 0000033c: PUSH1 0x20 0000033e: DUP3 0000033f: DUP5 00000340: SUB 00000341: SLT 00000342: ISZERO 00000343: PUSH2 0x034b 00000346: JUMPI 00000347: PUSH1 0x00 00000349: DUP1 0000034a: REVERT 0000034b: JUMPDEST 0000034c: DUP2 0000034d: MLOAD 0000034e: DUP1 0000034f: ISZERO 00000350: ISZERO 00000351: DUP2 00000352: EQ 00000353: PUSH2 0x035b 00000356: JUMPI 00000357: PUSH1 0x00 00000359: DUP1 0000035a: REVERT 0000035b: JUMPDEST 0000035c: SWAP4 0000035d: SWAP3 0000035e: POP 0000035f: POP 00000360: POP 00000361: JUMP 00000362: INVALID 00000363: LOG2 00000364: PUSH5 0x6970667358 0000036a: UNKNOWN(0x22) 0000036b: SLT 0000036c: KECCAK256 0000036d: SWAP8 0000036e: PUSH7 0x385fd7f98c24d4 00000376: UNKNOWN(0xE5) 00000377: STOP 00000378: SELFDESTRUCT 00000379: UNKNOWN(0xE9) 0000037a: UNKNOWN(0xDB) 0000037b: PUSH1 0x74 0000037d: ADDRESS 0000037e: CLZ 0000037f: SMOD 00000380: UNKNOWN(0xDB) 00000381: UNKNOWN(0xA6) 00000382: CLZ 00000383: SWAP9 00000384: UNKNOWN(0x4D) 00000385: CALLER 00000386: UNKNOWN(0xE4) 00000387: PUSH5 0x8c533eb011 0000038d: PUSH5 0x736f6c6343 00000393: STOP 00000394: ADDMOD 00000395: UNKNOWN(0x0D) 00000396: STOP 00000397: CALLER
| Severity | Category | Tool | Title | Confidence | Validated | Confirmed | Details |
|---|---|---|---|---|---|---|---|
| high | upgradeability | codex | Unprotected proxy initializer allows market takeover | 85 | no | — |
viewevidence_json{
"evidence": "`initialize` is public and only checks `market == address(0)`, then sets `market = msg.sender`.",
"locations": [
"contracts/Contract.sol:25",
"contracts/Contract.sol:26",
"contracts/Contract.sol:27"
],
"recommendation": "Restrict initialization to a trusted deployer/factory and use an initializer guard pattern (e.g., OpenZeppelin `initializer` + `onlyProxy`) or pass the expected market address and verify `msg.sender` against it.",
"exploit_scenario": "If a proxy is deployed but `initialize` is not called atomically by a trusted factory, any external caller can invoke it first, set themselves as `market`, and then call `pay` to drain escrowed tokens."
}
|
| high | other | cast | SELFDESTRUCT present | 85 | no | — |
viewevidence_json{
"notes": "selfdestruct can remove contract code and send funds; review reachability",
"selfdestruct_count": 1
}
|
| high | other | detector | Untrusted CALL target/value reachable | 60 | no | no |
viewtrace_id: 0x6282685dc9c0b5368f0c1909b39f156de1a98ae524b47f76bb1462d80c38a334
call_targets:
0xc06053fcad0a0df7cc32289a135bbea9030c010f
target_varies:
no
classification:
constant_target
validation_json{
"sink": "CALL",
"errors": 0,
"status": "sink_reached",
"attempts": 1,
"trace_id": "0x6282685dc9c0b5368f0c1909b39f156de1a98ae524b47f76bb1462d80c38a334",
"confirmed": false,
"trace_mode": "callTracer",
"call_targets": [
"0xc06053fcad0a0df7cc32289a135bbea9030c010f"
],
"matched_probe": null,
"target_varies": false,
"classification": "constant_target"
}
witness_json{
"notes": "heuristic witness; entrypoints are best-effort selectors with zeroed calldata",
"constraints": [],
"entrypoints": [
{
"calldata": "0x12c93f59",
"selector": "0x12c93f59",
"calldata_variants": [
"0x12c93f59",
"0x12c93f590000000000000000000000000000000000000000000000000000000000000000"
]
},
{
"calldata": "0x485cc955",
"selector": "0x485cc955",
"calldata_variants": [
"0x485cc955",
"0x485cc9550000000000000000000000000000000000000000000000000000000000000000"
]
},
{
"calldata": "0x80f55605",
"selector": "0x80f55605",
"calldata_variants": [
"0x80f55605",
"0x80f556050000000000000000000000000000000000000000000000000000000000000000"
]
},
{
"calldata": "0xb69ef8a8",
"selector": "0xb69ef8a8",
"calldata_variants": [
"0xb69ef8a8",
"0xb69ef8a80000000000000000000000000000000000000000000000000000000000000000"
]
},
{
"calldata": "0xc4076876",
"selector": "0xc4076876",
"calldata_variants": [
"0xc4076876",
"0xc40768760000000000000000000000000000000000000000000000000000000000000000"
]
},
{
"calldata": "0xfc0c546a",
"selector": "0xfc0c546a",
"calldata_variants": [
"0xfc0c546a",
"0xfc0c546a0000000000000000000000000000000000000000000000000000000000000000"
]
}
]
}
evidence_json{
"examples": [
{
"pc": 617,
"opcode": "CALL",
"returndata_checked": null,
"value_expression_category": "computed",
"target_expression_category": "computed"
}
],
"call_count": 1,
"guards_detected": [],
"untrusted_call_count": 1
}
|
| high | other | detector | ETH value transfer possible | 55 | no | no |
viewtrace_id: 0x6282685dc9c0b5368f0c1909b39f156de1a98ae524b47f76bb1462d80c38a334
call_targets:
0xc06053fcad0a0df7cc32289a135bbea9030c010f
target_varies:
no
classification:
constant_target
validation_json{
"sink": "CALL",
"errors": 0,
"status": "sink_reached",
"attempts": 1,
"trace_id": "0x6282685dc9c0b5368f0c1909b39f156de1a98ae524b47f76bb1462d80c38a334",
"confirmed": false,
"trace_mode": "callTracer",
"call_targets": [
"0xc06053fcad0a0df7cc32289a135bbea9030c010f"
],
"matched_probe": null,
"target_varies": false,
"classification": "constant_target"
}
witness_json{
"notes": "heuristic witness; entrypoints are best-effort selectors with zeroed calldata",
"constraints": [],
"entrypoints": [
{
"calldata": "0x12c93f59",
"selector": "0x12c93f59",
"calldata_variants": [
"0x12c93f59",
"0x12c93f590000000000000000000000000000000000000000000000000000000000000000"
]
},
{
"calldata": "0x485cc955",
"selector": "0x485cc955",
"calldata_variants": [
"0x485cc955",
"0x485cc9550000000000000000000000000000000000000000000000000000000000000000"
]
},
{
"calldata": "0x80f55605",
"selector": "0x80f55605",
"calldata_variants": [
"0x80f55605",
"0x80f556050000000000000000000000000000000000000000000000000000000000000000"
]
},
{
"calldata": "0xb69ef8a8",
"selector": "0xb69ef8a8",
"calldata_variants": [
"0xb69ef8a8",
"0xb69ef8a80000000000000000000000000000000000000000000000000000000000000000"
]
},
{
"calldata": "0xc4076876",
"selector": "0xc4076876",
"calldata_variants": [
"0xc4076876",
"0xc40768760000000000000000000000000000000000000000000000000000000000000000"
]
},
{
"calldata": "0xfc0c546a",
"selector": "0xfc0c546a",
"calldata_variants": [
"0xfc0c546a",
"0xfc0c546a0000000000000000000000000000000000000000000000000000000000000000"
]
}
]
}
evidence_json{
"examples": [
{
"pc": 617,
"opcode": "CALL",
"returndata_checked": null,
"value_expression_category": "computed",
"target_expression_category": "computed"
}
],
"eth_value_calls": 1,
"guards_detected": []
}
|
| high | other | detector | SELFDESTRUCT reachable | 65 | no | no |
viewtrace_id: 0xc2ec6c78bb83b9c59d7e47d02d4d5e239e3ec19387805a6aec51854bfc13bd13
validation_json{
"sink": "SELFDESTRUCT",
"errors": 0,
"status": "unknown",
"attempts": 12,
"trace_id": "0xc2ec6c78bb83b9c59d7e47d02d4d5e239e3ec19387805a6aec51854bfc13bd13",
"confirmed": false,
"trace_mode": "structLogs",
"call_targets": null,
"matched_probe": null,
"target_varies": null,
"classification": "no_sink"
}
witness_json{
"notes": "heuristic witness; entrypoints are best-effort selectors with zeroed calldata",
"constraints": [],
"entrypoints": [
{
"calldata": "0x12c93f59",
"selector": "0x12c93f59",
"calldata_variants": [
"0x12c93f59",
"0x12c93f590000000000000000000000000000000000000000000000000000000000000000"
]
},
{
"calldata": "0x485cc955",
"selector": "0x485cc955",
"calldata_variants": [
"0x485cc955",
"0x485cc9550000000000000000000000000000000000000000000000000000000000000000"
]
},
{
"calldata": "0x80f55605",
"selector": "0x80f55605",
"calldata_variants": [
"0x80f55605",
"0x80f556050000000000000000000000000000000000000000000000000000000000000000"
]
},
{
"calldata": "0xb69ef8a8",
"selector": "0xb69ef8a8",
"calldata_variants": [
"0xb69ef8a8",
"0xb69ef8a80000000000000000000000000000000000000000000000000000000000000000"
]
},
{
"calldata": "0xc4076876",
"selector": "0xc4076876",
"calldata_variants": [
"0xc4076876",
"0xc40768760000000000000000000000000000000000000000000000000000000000000000"
]
},
{
"calldata": "0xfc0c546a",
"selector": "0xfc0c546a",
"calldata_variants": [
"0xfc0c546a",
"0xfc0c546a0000000000000000000000000000000000000000000000000000000000000000"
]
}
]
}
evidence_json{
"guards_detected": [],
"selfdestruct_count": 1
}
|
| high | other | slither | SimpleERC20Escrow.pay(address,uint256) (contracts/Contract.sol#34-38) ignores return value by token.transfer(recipient,amount) (contracts/Contract.sol#37-38) | 85 | no | — |
viewevidence_json{
"impact": "High",
"detector": "unchecked-transfer",
"elements": [
{
"name": "pay",
"type": "function",
"source_mapping": {
"lines": [
34,
35,
36,
37,
38
],
"start": 1248,
"length": 156,
"ending_column": 12,
"is_dependency": false,
"filename_short": "contracts/Contract.sol",
"starting_column": 42,
"filename_absolute": "/tmp/slither-8q82pt4q/contracts/Contract.sol",
"filename_relative": "contracts/Contract.sol"
},
"type_specific_fields": {
"parent": {
"name": "SimpleERC20Escrow",
"type": "contract",
"source_mapping": {
"lines": [
14,
15,
16,
17,
18,
19,
20,
21,
22,
23,
24,
25,
26,
27,
28,
29,
30,
31,
32,
33,
34,
35,
36,
37,
38,
39,
40,
41,
42,
43,
44,
45,
46,
47,
48,
49,
50,
51
],
"start": 581,
"length": 1290,
"ending_column": 92,
"is_dependency": false,
"filename_short": "contracts/Contract.sol",
"starting_column": 73,
"filename_absolute": "/tmp/slither-8q82pt4q/contracts/Contract.sol",
"filename_relative": "contracts/Contract.sol"
}
},
"signature": "pay(address,uint256)"
}
},
{
"name": "token.transfer(recipient,amount)",
"type": "node",
"source_mapping": {
"lines": [
37,
38
],
"start": 1364,
"length": 33,
"ending_column": 5,
"is_dependency": false,
"filename_short": "contracts/Contract.sol",
"starting_column": 27,
"filename_absolute": "/tmp/slither-8q82pt4q/contracts/Contract.sol",
"filename_relative": "contracts/Contract.sol"
},
"type_specific_fields": {
"parent": {
"name": "pay",
"type": "function",
"source_mapping": {
"lines": [
34,
35,
36,
37,
38
],
"start": 1248,
"length": 156,
"ending_column": 12,
"is_dependency": false,
"filename_short": "contracts/Contract.sol",
"starting_column": 42,
"filename_absolute": "/tmp/slither-8q82pt4q/contracts/Contract.sol",
"filename_relative": "contracts/Contract.sol"
},
"type_specific_fields": {
"parent": {
"name": "SimpleERC20Escrow",
"type": "contract",
"source_mapping": {
"lines": [
14,
15,
16,
17,
18,
19,
20,
21,
22,
23,
24,
25,
26,
27,
28,
29,
30,
31,
32,
33,
34,
35,
36,
37,
38,
39,
40,
41,
42,
43,
44,
45,
46,
47,
48,
49,
50,
51
],
"start": 581,
"length": 1290,
"ending_column": 92,
"is_dependency": false,
"filename_short": "contracts/Contract.sol",
"starting_column": 73,
"filename_absolute": "/tmp/slither-8q82pt4q/contracts/Contract.sol",
"filename_relative": "contracts/Contract.sol"
}
},
"signature": "pay(address,uint256)"
}
}
}
}
],
"locations": [
{
"file": "contracts/Contract.sol",
"name": "pay",
"type": "function",
"lines": [
34,
35,
36,
37,
38
]
},
{
"file": "contracts/Contract.sol",
"name": "token.transfer(recipient,amount)",
"type": "node",
"lines": [
37,
38
]
}
],
"description": "SimpleERC20Escrow.pay(address,uint256) (contracts/Contract.sol#34-38) ignores return value by token.transfer(recipient,amount) (contracts/Contract.sol#37-38)"
}
|
| low | other | codex | Unchecked ERC20 transfer return value can mask failed payouts | 65 | no | — |
viewevidence_json{
"evidence": "`token.transfer(recipient, amount);` return value is ignored.",
"locations": [
"contracts/Contract.sol:36",
"contracts/Contract.sol:38"
],
"recommendation": "Require the return value or use OpenZeppelin `SafeERC20` to handle non\u2011standard tokens safely.",
"exploit_scenario": "For ERC20s that return `false` instead of reverting, `pay` will appear to succeed even if no tokens moved, which can desynchronize accounting in the calling market or allow collateral release without payment."
}
|