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Signature Validation Bypass Affecting github.com/cosmos/ethermint/rpc/namespaces/eth package, versions <0.4.1

0.0
medium

Snyk CVSS

    Attack Complexity High
    Confidentiality High

    Threat Intelligence

    EPSS 0.07% (31st percentile)
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NVD
7.5 high

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  • Snyk ID SNYK-GOLANG-GITHUBCOMCOSMOSETHERMINTRPCNAMESPACESETH-1070795
  • published 9 Feb 2021
  • disclosed 9 Feb 2021
  • credit Unknown
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Introduced: 9 Feb 2021

CVE-2021-25835 Open this link in a new tab
CWE-295 Open this link in a new tab

How to fix?

Upgrade github.com/cosmos/ethermint/rpc/namespaces/eth to version 0.4.1 or higher.

Overview

github.com/cosmos/ethermint/rpc/namespaces/eth is an a scalable, high-throughput Proof-of-Stake blockchain that is fully compatible and interoperable with Ethereum.

Affected versions of this package are vulnerable to Signature Validation Bypass. 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 message content and chainIDEpoch, which enables a cross-chain transaction replay attack.