GHSA-x5f3-qmwj-4f84
Authentication bypass by capture-replay in github.com/cosmos/ethermint
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| Go | github.com/cosmos/ethermint | < 0.4.1 | 0.4.1 |
Details
As written in the advisory (Markdown source, shown as plain text).
Cosmos Network Ethermint <= v0.4.0 is affected by a cross-chain transaction replay vulnerability in the EVM module. Since ethermint uses the same chainIDEpoch and signature schemes with ethereum for compatibility, a verified signature in ethereum is still valid in ethermint with the same msg content and chainIDEpoch, which enables "cross-chain transaction replay" attack.
### Specific Go Packages Affected
github.com/cosmos/ethermint/rpc/namespaces/eth
References
External links from the advisory. They lead to third-party sites.