VULNERABILITY INTELLIGENCE

CVE-2022-47930

CVSS score6.8 MEDIUM
EPSS probability0.52%
CISA KEVNot currently listed
Published2023-04-21
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N

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.

Weakness classification

  • nvd@nist.gov: CWE-294
  • 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-294

Primary references