CVEvulnerability

CVE-2022-47930

6.8 MEDIUM Published 2023-04-21 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2023-04-21
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
6.8 MEDIUM — CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
6.8 MEDIUM — CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
Weaknesses
CWE-294

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.

Affected configurations

• iofinnet tss-lib (< 2.0.0)

Related

Weakness · CWE (1)

  • CWE-294 Authentication Bypass by Capture-replay weakness

References