CVE-2022-47930

MediumCVSS 6.8/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 6.8/10CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N

Weakness enumeration

CWE-294

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

Timeline

Published: Apr 21, 2023
Last modified: Jun 17, 2026
NVD status: Modified

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