Ecosyste.ms: Advisories

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Security Advisories: GSA_kwCzR0hTQS1qY3FxLWc2NHYtZ2NtN84AA74Z

Previous ATX is not checked to be the newest valid ATX by Smesher when validating incoming ATX

Impact

Nodes can publish ATXs which reference the incorrect previous ATX of the Smesher that created the ATX. ATXs are expected to form a single chain from the newest to the first ATX ever published by an identity. Allowing Smeshers to reference an earlier (but not the latest) ATX as previous breaks this protocol rule and can serve as an attack vector where Nodes are rewarded for holding their PoST data for less than one epoch but still being eligible for rewards.

Patches

API needs to be extended to be able to fetch events from a node that dected malicious behavior of this regard by the node
go-spacemesh needs to be patched to a) not allow publishing these ATXs any more and b) create malfeasance proofs for identities that published invalid ATXs in the past.

Workarounds

n/a

References

Spacemesh protocol whitepaper: https://spacemesh.io/blog/spacemesh-white-paper-1/, specifically sections 4.4.2 ("ATX Contents") and 4.4.3 ("ATX validity")

Permalink: https://github.com/advisories/GHSA-jcqq-g64v-gcm7
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS1qY3FxLWc2NHYtZ2NtN84AA74Z
Source: GitHub Advisory Database
Origin: Unspecified
Severity: High
Classification: General
Published: 7 months ago
Updated: 6 months ago

CVSS Score: 8.2
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N

Identifiers: GHSA-jcqq-g64v-gcm7, CVE-2024-34360
References:

Repository: https://github.com/spacemeshos/go-spacemesh
Blast Radius: 5.7

Affected Packages

go:github.com/spacemeshos/api

Dependent packages: 0
Dependent repositories: 2
Downloads:
Affected Version Ranges: < 1.37.1
Fixed in: 1.37.1
All affected versions: 0.1.1, 1.0.0, 1.0.1, 1.1.0, 1.1.1, 1.2.0, 1.3.0, 1.4.0, 1.4.1, 1.5.0, 1.5.1, 1.5.2, 1.5.3, 1.5.4, 1.5.5, 1.5.6, 1.5.7, 1.5.8, 1.5.9, 1.6.0, 1.21.1, 1.24.0, 1.25.0, 1.26.0, 1.27.0, 1.28.0, 1.29.0, 1.30.0, 1.31.0, 1.32.0, 1.33.0, 1.34.0, 1.35.0, 1.36.0, 1.37.0
All unaffected versions: 1.37.1, 1.38.0, 1.39.0, 1.40.0, 1.41.0, 1.42.0, 1.43.0, 1.43.1, 1.44.0, 1.45.0, 1.46.0, 1.47.0, 1.48.0, 1.49.0, 1.50.0, 1.51.0, 1.52.0, 1.53.0, 1.54.0, 1.55.0

go:github.com/spacemeshos/go-spacemesh

Dependent packages: 11
Dependent repositories: 5
Downloads:
Affected Version Ranges: < 1.5.2-hotfix1
Fixed in: 1.5.2-hotfix1
All affected versions: 0.1.0, 0.1.1, 0.1.2, 0.1.3, 0.1.4, 0.1.5, 0.1.6, 0.1.7, 0.1.8, 0.1.9, 0.1.11, 0.1.12, 0.1.13, 0.1.14, 0.1.15, 0.1.16, 0.1.17, 0.1.18, 0.1.19, 0.1.20, 0.1.21, 0.1.22, 0.1.23, 0.1.24, 0.1.25, 0.1.26, 0.1.27, 0.1.28, 0.1.29, 0.1.30, 0.1.31, 0.1.32, 0.1.33, 0.1.34, 0.1.35, 0.1.36, 0.1.37, 0.1.38, 0.1.39, 0.1.40, 0.1.41, 0.1.42, 0.1.43, 0.1.44, 0.1.45, 1.0.0, 1.0.1, 1.0.2, 1.0.3, 1.0.4, 1.0.5, 1.0.6, 1.0.7, 1.0.8, 1.0.9, 1.0.10, 1.0.11, 1.0.12, 1.0.13, 1.0.15, 1.0.16, 1.0.17, 1.0.18, 1.0.19, 1.1.0, 1.1.1, 1.1.2, 1.1.3, 1.1.4, 1.1.5, 1.1.6, 1.1.7, 1.1.8, 1.1.9, 1.1.10, 1.2.0, 1.2.1, 1.2.2, 1.2.3, 1.2.4, 1.2.5, 1.2.6, 1.2.7, 1.2.8, 1.2.9, 1.2.10, 1.2.11, 1.2.12, 1.2.13, 1.3.0, 1.3.1, 1.3.2, 1.3.3, 1.3.4, 1.3.5, 1.3.6, 1.3.7, 1.3.8, 1.3.9, 1.3.10, 1.3.11, 1.4.0, 1.4.1, 1.4.2, 1.4.3, 1.4.4, 1.4.5, 1.4.6, 1.5.0, 1.5.1
All unaffected versions: 1.5.2, 1.5.3