update: improve unhandled initializers in unprotected-upgrade detector #2203
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vovikhangcdv
requested review from
montyly,
0xalpharush and
smonicas
as code owners
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I just added: Remove ambiguous relation between The |
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hi there, any update? @@ |
WalkthroughWalkthroughThe recent updates involve modifications and additions across multiple files related to the Slither framework and test environments for detecting vulnerabilities in upgradeable smart contracts. Changes include altering the initialization and protection mechanisms of smart contracts, refining detection capabilities for unprotected upgradeable functions, and introducing new test cases and contracts to enhance the robustness of security assessments. Changes
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Actionable comments posted: 1
Out of diff range and nitpick comments (5)
tests/e2e/detectors/test_data/unprotected-upgrade/0.4.25/Initializable.sol (1)
6-8: Thereinitializermodifier implementation is correct. Consider adding a comment explaining the unusedversionparameter, if it's intended for future use or external checks.tests/e2e/detectors/test_data/unprotected-upgrade/0.5.16/Initializable.sol (1)
6-8: Thereinitializermodifier implementation is correct. Consider adding a comment explaining the unusedversionparameter, if it's intended for future use or external checks.tests/e2e/detectors/test_data/unprotected-upgrade/0.6.11/Initializable.sol (1)
6-8: Thereinitializermodifier implementation is correct. Consider adding a comment explaining the unusedversionparameter, if it's intended for future use or external checks.slither/core/declarations/contract.py (2)
Line range hint
967-967: Undefined name 'Event' used in type hint.- def get_event_from_signature(self, event_signature: str) -> Optional["Event"]: + def get_event_from_signature(self, event_signature: str) -> Optional["EventContract"]:
Line range hint
977-977: Undefined name 'Event' used in type hint.- def get_event_from_canonical_name(self, event_canonical_name: str) -> Optional["Event"]: + def get_event_from_canonical_name(self, event_canonical_name: str) -> Optional["EventContract"]:
Review Details
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Files ignored due to path filters (10)
tests/e2e/detectors/test_data/unprotected-upgrade/0.4.25/AnyInitializer.sol-0.4.25.zipis excluded by!**/*.ziptests/e2e/detectors/test_data/unprotected-upgrade/0.4.25/Reinitializer.sol-0.4.25.zipis excluded by!**/*.ziptests/e2e/detectors/test_data/unprotected-upgrade/0.5.16/AnyInitializer.sol-0.5.16.zipis excluded by!**/*.ziptests/e2e/detectors/test_data/unprotected-upgrade/0.5.16/Reinitializer.sol-0.5.16.zipis excluded by!**/*.ziptests/e2e/detectors/test_data/unprotected-upgrade/0.6.11/AnyInitializer.sol-0.6.11.zipis excluded by!**/*.ziptests/e2e/detectors/test_data/unprotected-upgrade/0.6.11/Reinitializer.sol-0.6.11.zipis excluded by!**/*.ziptests/e2e/detectors/test_data/unprotected-upgrade/0.7.6/AnyInitializer.sol-0.7.6.zipis excluded by!**/*.ziptests/e2e/detectors/test_data/unprotected-upgrade/0.7.6/Reinitializer.sol-0.7.6.zipis excluded by!**/*.ziptests/e2e/detectors/test_data/unprotected-upgrade/0.8.15/AnyInitializer.sol-0.8.15.zipis excluded by!**/*.ziptests/e2e/detectors/test_data/unprotected-upgrade/0.8.15/Reinitializer.sol-0.8.15.zipis excluded by!**/*.zip
Files selected for processing (28)
- slither/core/declarations/contract.py (1 hunks)
- slither/detectors/statements/unprotected_upgradeable.py (1 hunks)
- tests/e2e/detectors/snapshots/detectors__detector_UnprotectedUpgradeable_0_4_25_AnyInitializer_sol__0.txt (1 hunks)
- tests/e2e/detectors/snapshots/detectors__detector_UnprotectedUpgradeable_0_4_25_Reinitializer_sol__0.txt (1 hunks)
- tests/e2e/detectors/snapshots/detectors__detector_UnprotectedUpgradeable_0_5_16_AnyInitializer_sol__0.txt (1 hunks)
- tests/e2e/detectors/snapshots/detectors__detector_UnprotectedUpgradeable_0_5_16_Reinitializer_sol__0.txt (1 hunks)
- tests/e2e/detectors/snapshots/detectors__detector_UnprotectedUpgradeable_0_6_11_AnyInitializer_sol__0.txt (1 hunks)
- tests/e2e/detectors/snapshots/detectors__detector_UnprotectedUpgradeable_0_6_11_Reinitializer_sol__0.txt (1 hunks)
- tests/e2e/detectors/snapshots/detectors__detector_UnprotectedUpgradeable_0_7_6_AnyInitializer_sol__0.txt (1 hunks)
- tests/e2e/detectors/snapshots/detectors__detector_UnprotectedUpgradeable_0_7_6_Reinitializer_sol__0.txt (1 hunks)
- tests/e2e/detectors/snapshots/detectors__detector_UnprotectedUpgradeable_0_8_15_AnyInitializer_sol__0.txt (1 hunks)
- tests/e2e/detectors/snapshots/detectors__detector_UnprotectedUpgradeable_0_8_15_Reinitializer_sol__0.txt (1 hunks)
- tests/e2e/detectors/test_data/unprotected-upgrade/0.4.25/AnyInitializer.sol (1 hunks)
- tests/e2e/detectors/test_data/unprotected-upgrade/0.4.25/Initializable.sol (1 hunks)
- tests/e2e/detectors/test_data/unprotected-upgrade/0.4.25/Reinitializer.sol (1 hunks)
- tests/e2e/detectors/test_data/unprotected-upgrade/0.5.16/AnyInitializer.sol (1 hunks)
- tests/e2e/detectors/test_data/unprotected-upgrade/0.5.16/Initializable.sol (1 hunks)
- tests/e2e/detectors/test_data/unprotected-upgrade/0.5.16/Reinitializer.sol (1 hunks)
- tests/e2e/detectors/test_data/unprotected-upgrade/0.6.11/AnyInitializer.sol (1 hunks)
- tests/e2e/detectors/test_data/unprotected-upgrade/0.6.11/Initializable.sol (1 hunks)
- tests/e2e/detectors/test_data/unprotected-upgrade/0.6.11/Reinitializer.sol (1 hunks)
- tests/e2e/detectors/test_data/unprotected-upgrade/0.7.6/AnyInitializer.sol (1 hunks)
- tests/e2e/detectors/test_data/unprotected-upgrade/0.7.6/Initializable.sol (1 hunks)
- tests/e2e/detectors/test_data/unprotected-upgrade/0.7.6/Reinitializer.sol (1 hunks)
- tests/e2e/detectors/test_data/unprotected-upgrade/0.8.15/AnyInitializer.sol (1 hunks)
- tests/e2e/detectors/test_data/unprotected-upgrade/0.8.15/Initializable.sol (1 hunks)
- tests/e2e/detectors/test_data/unprotected-upgrade/0.8.15/Reinitializer.sol (1 hunks)
- tests/e2e/detectors/test_detectors.py (5 hunks)
Additional Context Used
Ruff (2)
slither/core/declarations/contract.py (2)
967-967: Undefined name
Event
977-977: Undefined name
Event
Additional comments not posted (36)
tests/e2e/detectors/test_data/unprotected-upgrade/0.4.25/Initializable.sol (1)
2-4: Theinitializermodifier implementation looks good.tests/e2e/detectors/test_data/unprotected-upgrade/0.5.16/Initializable.sol (1)
2-4: Theinitializermodifier implementation looks good.tests/e2e/detectors/test_data/unprotected-upgrade/0.6.11/Initializable.sol (1)
2-4: Theinitializermodifier implementation looks good.tests/e2e/detectors/test_data/unprotected-upgrade/0.4.25/AnyInitializer.sol (2)
6-9: TheanyNamefunction correctly implements the initializer pattern, ensuring that it can only be called once when the owner is not set.
11-13: Thekillfunction is correctly protected to ensure only the owner can trigger it, which is crucial for sensitive operations likeselfdestruct.tests/e2e/detectors/test_data/unprotected-upgrade/0.4.25/Reinitializer.sol (2)
6-9: Theinitializefunction correctly uses thereinitializermodifier to demonstrate versioned reinitialization, ensuring it can only be called once when the owner is not set.
11-13: Thekillfunction is correctly protected to ensure only the owner can trigger it, which is crucial for sensitive operations likeselfdestruct.tests/e2e/detectors/test_data/unprotected-upgrade/0.5.16/AnyInitializer.sol (2)
6-9: TheanyNamefunction correctly implements the initializer pattern with the updatedownertype toaddress payable, suitable for newer Solidity versions.
11-13: Thekillfunction is correctly protected to ensure only the owner can trigger it, which is crucial for sensitive operations likeselfdestruct.tests/e2e/detectors/test_data/unprotected-upgrade/0.5.16/Reinitializer.sol (2)
6-9: Theinitializefunction correctly uses thereinitializermodifier to demonstrate versioned reinitialization with the updatedownertype toaddress payable, suitable for newer Solidity versions.
11-13: Thekillfunction is correctly protected to ensure only the owner can trigger it, which is crucial for sensitive operations likeselfdestruct.tests/e2e/detectors/test_data/unprotected-upgrade/0.6.11/AnyInitializer.sol (2)
6-9: TheanyNamefunction correctly implements the initializer pattern with the explicit use ofpayablefor theownerassignment, enhancing clarity in newer Solidity versions.
11-13: Thekillfunction is correctly protected to ensure only the owner can trigger it, which is crucial for sensitive operations likeselfdestruct.tests/e2e/detectors/test_data/unprotected-upgrade/0.7.6/AnyInitializer.sol (2)
6-9: TheanyNamefunction correctly implements an initializer pattern by ensuring it can only be executed once and setting the contract's owner.
11-13: Thekillfunction includes appropriate security checks to ensure that only the owner can destroy the contract.tests/e2e/detectors/test_data/unprotected-upgrade/0.8.15/AnyInitializer.sol (2)
6-9: TheanyNamefunction correctly implements an initializer pattern by ensuring it can only be executed once and setting the contract's owner.
11-13: Thekillfunction includes appropriate security checks to ensure that only the owner can destroy the contract.tests/e2e/detectors/test_data/unprotected-upgrade/0.6.11/Reinitializer.sol (2)
6-9: Theinitializefunction correctly implements a re-initializer pattern by potentially allowing re-execution under controlled conditions and setting the contract's owner.
11-13: Thekillfunction includes appropriate security checks to ensure that only the owner can destroy the contract.tests/e2e/detectors/test_data/unprotected-upgrade/0.7.6/Reinitializer.sol (2)
6-9: Theinitializefunction correctly implements a re-initializer pattern by potentially allowing re-execution under controlled conditions and setting the contract's owner.
11-13: Thekillfunction includes appropriate security checks to ensure that only the owner can destroy the contract.tests/e2e/detectors/test_data/unprotected-upgrade/0.8.15/Reinitializer.sol (2)
6-9: Theinitializefunction correctly implements a re-initializer pattern by potentially allowing re-execution under controlled conditions and setting the contract's owner.
11-13: Thekillfunction includes appropriate security checks to ensure that only the owner can destroy the contract.tests/e2e/detectors/snapshots/detectors__detector_UnprotectedUpgradeable_0_7_6_Reinitializer_sol__0.txt (1)
1-1: The snapshot accurately describes the vulnerabilities in theReinitializercontract, highlighting the unprotectedinitializefunction and the potential for unauthorized contract destruction.tests/e2e/detectors/snapshots/detectors__detector_UnprotectedUpgradeable_0_4_25_Reinitializer_sol__0.txt (1)
1-1: The snapshot accurately describes the vulnerabilities in theReinitializercontract, highlighting the unprotectedinitializefunction and the potential for unauthorized contract destruction.tests/e2e/detectors/snapshots/detectors__detector_UnprotectedUpgradeable_0_5_16_Reinitializer_sol__0.txt (1)
1-1: The snapshot accurately describes the vulnerabilities in theReinitializercontract, highlighting the unprotectedinitializefunction and the potential for unauthorized contract destruction.tests/e2e/detectors/snapshots/detectors__detector_UnprotectedUpgradeable_0_6_11_Reinitializer_sol__0.txt (1)
1-1: Description accurately outlines the test scenario forReinitializerwith unprotected initialization functions.tests/e2e/detectors/snapshots/detectors__detector_UnprotectedUpgradeable_0_7_6_AnyInitializer_sol__0.txt (1)
1-1: Description accurately outlines the test scenario forAnyInitializerwith unprotected initialization functions.tests/e2e/detectors/snapshots/detectors__detector_UnprotectedUpgradeable_0_8_15_Reinitializer_sol__0.txt (1)
1-1: Description accurately outlines the test scenario forReinitializerwith unprotected initialization functions.tests/e2e/detectors/snapshots/detectors__detector_UnprotectedUpgradeable_0_4_25_AnyInitializer_sol__0.txt (1)
1-1: Description accurately outlines the test scenario forAnyInitializerwith unprotected initialization functions.tests/e2e/detectors/snapshots/detectors__detector_UnprotectedUpgradeable_0_5_16_AnyInitializer_sol__0.txt (1)
1-1: Description accurately outlines the test scenario forAnyInitializerwith unprotected initialization functions.tests/e2e/detectors/snapshots/detectors__detector_UnprotectedUpgradeable_0_6_11_AnyInitializer_sol__0.txt (1)
1-1: Description accurately outlines the test scenario forAnyInitializerwith unprotected initialization functions.tests/e2e/detectors/snapshots/detectors__detector_UnprotectedUpgradeable_0_8_15_AnyInitializer_sol__0.txt (1)
1-1: Description accurately outlines the test scenario forAnyInitializerwith unprotected initialization functions.tests/e2e/detectors/test_data/unprotected-upgrade/0.8.15/Initializable.sol (1)
9-11: Addition of thereinitializermodifier aligns with the PR's objectives to enhance detection capabilities.slither/detectors/statements/unprotected_upgradeable.py (1)
55-62: The modifications to_initialize_functionscorrectly expand the criteria for detecting initializer functions. Good use of list comprehensions and filtering.tests/e2e/detectors/test_detectors.py (1)
Line range hint
941-1050: The new test configurations forUnprotectedUpgradeabledetector are correctly added for multiple Solidity versions. This ensures comprehensive testing across different environments.
| modifier reinitializer(uint64 version) { | ||
| _; | ||
| } |
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Consider implementing logic in the reinitializer modifier or provide a comment explaining its intended use.
What PR for
unprotected-upgradeonly detects function nameinitializeas initializer. It will increase false negatives because of missing proper initializers.What PR does
initializerorreinitializermodifier as aninitializer._is_upgradeableand_is_upgradeable_proxy. The_is_upgradeableshould not be excluded by_is_upgradeable_proxy. For example, just because the contract name hasproxyin its name, detectors should not miss the bug (false negative).Summary by CodeRabbit
New Features
AnyInitializerandReinitializerwith initialization and self-destruct functionalities across various versions.reinitializermodifier toInitializablecontract to handle versioned reinitialization.Bug Fixes
_initialize_functionsto filter functions with specific modifiers for enhanced security.Tests
UnprotectedUpgradeabledetectors to validate the security of upgradeable contracts.