CVE-2024-32644 (GCVE-0-2024-32644)

Vulnerability from cvelistv5 – Published: 2024-04-19 14:53 – Updated: 2024-08-02 02:13
VLAI?
Title
Evmos' transaction execution not accounting for all state transition after interaction with precompiles
Summary
Evmos is a scalable, high-throughput Proof-of-Stake EVM blockchain that is fully compatible and interoperable with Ethereum. Prior to 17.0.0, there is a way to mint arbitrary tokens due to the possibility to have two different states not in sync during the execution of a transaction. The exploit is based on the fact that to sync the Cosmos SDK state and the EVM one, we rely on the `stateDB.Commit()` method. When we call this method, we iterate though all the `dirtyStorage` and, **if and only if** it is different than the `originStorage`, we set the new state. Setting the new state means we update the Cosmos SDK KVStore. If a contract storage state that is the same before and after a transaction, but is changed during the transaction and can call an external contract after the change, it can be exploited to make the transaction similar to non-atomic. The vulnerability is **critical** since this could lead to drain of funds through creative SC interactions. The issue has been patched in versions >=V17.0.0.
Severity ?
9.1 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
CWE
  • CWE-662 - Improper Synchronization
Assigner
References
Impacted products
Vendor Product Version
evmos evmos Affected: < 17.0.0
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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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