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


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.07% (32nd percentile)

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  • Snyk IDSNYK-GOLANG-GITHUBCOMCOSMOSETHERMINTRPCNAMESPACESETH-1070796
  • published9 Feb 2021
  • disclosed9 Feb 2021
  • creditUnknown

Introduced: 9 Feb 2021

CVE-2021-25834  (opens in a new tab)
CWE-287  (opens 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 Authentication Bypass. Signaturecheck uses the nonce field of the transaction itself, so transactions larger than the current cached nonce can still pass it. Thus, if the victim sends a very large nonce transaction, the attacker can replay the transaction through the application.

CVSS Base Scores

version 3.1