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MEDIUM · 5.4

CVE-2022-23507

Tendermint is a high-performance blockchain consensus engine for Byzantine fault tolerant applications. Versions prior to 0.28.0 contain a potential attack via Improper Verification of Cryptographic S...

Vulnerability Description

Tendermint is a high-performance blockchain consensus engine for Byzantine fault tolerant applications. Versions prior to 0.28.0 contain a potential attack via Improper Verification of Cryptographic Signature, affecting anyone using the tendermint-light-client and related packages to perform light client verification (e.g. IBC-rs, Hermes). The light client does not check that the chain IDs of the trusted and untrusted headers match, resulting in a possible attack vector where someone who finds a header from an untrusted chain that satisfies all other verification conditions (e.g. enough overlapping validator signatures) could fool a light client. The attack vector is currently theoretical, and no proof-of-concept exists yet to exploit it on live networks. This issue is patched in version 0.28.0. There are no workarounds.

CVSS Score

5.4

MEDIUM

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE

Affected Products

VendorProductVersions
Tendermint-Light-Client-Js ProjectTendermint-Light-Client-Js< 0.28.0
Tendermint-Light-Client-Verifier ProjectTendermint-Light-Client-Verifier< 0.28.0
Tendermint-Light-Client ProjectTendermint-Light-Client< 0.28.0

Related Weaknesses (CWE)

CWE-347

References

FAQ

What is CVE-2022-23507?

CVE-2022-23507 is a vulnerability with a CVSS score of 5.4 (MEDIUM). Tendermint is a high-performance blockchain consensus engine for Byzantine fault tolerant applications. Versions prior to 0.28.0 contain a potential attack via Improper Verification of Cryptographic S...

How severe is CVE-2022-23507?

CVE-2022-23507 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2022-23507?

Check the references section above for vendor advisories and patch information. Affected products include: Tendermint-Light-Client-Js Project Tendermint-Light-Client-Js, Tendermint-Light-Client-Verifier Project Tendermint-Light-Client-Verifier, Tendermint-Light-Client Project Tendermint-Light-Client.