VulnerabilityModified
CVE-2022-47930
This could allow a malicious user or an eavesdropper to replay a valid proof sent in the past.
MEDIUM 6.8EPSS 0.52%
Does this matter?
Lower severity and a low EPSS score (0.52%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 6.8 MEDIUMCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
- EPSS
- 0.52% probability · 43th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-294
- Affected
- iofinnet/tss-lib
- Source
- cve@mitre.org
References
- https://github.com/IoFinnet/tss-lib/releases/tag/v2.0.0Release Notes
- https://medium.com/%40iofinnet/security-disclosure-for-ecdsa-and-eddsa-threshold-signature-schemes-4e969af7155b
- https://github.com/IoFinnet/tss-lib/releases/tag/v2.0.0Release Notes
- https://medium.com/%40iofinnet/security-disclosure-for-ecdsa-and-eddsa-threshold-signature-schemes-4e969af7155b
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.