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 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 v3.0 6.5 MEDIUM

6.5^/10

CVSS v3.0 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/informalsystems/tendermint-rs/security/advisories/GHSA-xqqc-c5gw-c5r5	Third Party Advisory

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Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:tendermint-light-client-js_project:tendermint-light-client-js:::::rust:::*
	cpe:2.3:a:tendermint-light-client_project:tendermint-light-client:::::rust:::*
	cpe:2.3:a:tendermint-light-client-verifier_project:tendermint-light-client-verifier::::::rust::*

Information

Published : 2022-12-15 11:15

Updated : 2022-12-20 08:14

NVD link : CVE-2022-23507

Mitre link : CVE-2022-23507

JSON object : View

CWE

CWE-347

Improper Verification of Cryptographic Signature

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Products Affected

tendermint-light-client_project

tendermint-light-client

tendermint-light-client-verifier_project

tendermint-light-client-verifier

tendermint-light-client-js_project

tendermint-light-client-js

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