Description
An issue was discovered in IO FinNet tss-lib before 2.0.0. The parameter ssid for defining a session id is not used through the MPC implementation, which makes replaying and spoofing of messages easier. In particular, the Schnorr proof of knowledge implemented in sch.go does not utilize a session id, context, or random nonce in the generation of the challenge. This could allow a malicious user or an eavesdropper to replay a valid proof sent in the past.
Published: 2023-04-21
Score: 6.8 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2023-1437 An issue was discovered in IO FinNet tss-lib before 2.0.0. The parameter ssid for defining a session id is not used through the MPC implementation, which makes replaying and spoofing of messages easier. In particular, the Schnorr proof of knowledge implemented in sch.go does not utilize a session id, context, or random nonce in the generation of the challenge. This could allow a malicious user or an eavesdropper to replay a valid proof sent in the past.
Github GHSA Github GHSA GHSA-c58h-qv6g-fw74 IO FinNet tss-lib vulnerable to replay attacks involving proofs
History

Fri, 11 Jul 2025 13:45:00 +0000

Type Values Removed Values Added
Metrics epss

{'score': 0.00072}

epss

{'score': 0.00058}


Wed, 05 Feb 2025 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Subscriptions

Iofinnet Tss-lib
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2025-02-05T14:50:01.991Z

Reserved: 2022-12-22T00:00:00.000Z

Link: CVE-2022-47930

cve-icon Vulnrichment

Updated: 2024-08-03T15:02:36.581Z

cve-icon NVD

Status : Modified

Published: 2023-04-21T18:15:07.377

Modified: 2025-02-05T15:15:15.867

Link: CVE-2022-47930

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses