CVSS 3.1
6.8 mediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:NCVE-2022-47930
Medium (6.8) in iofinnet tss-lib. EPSS 0.5% chance of exploitation in the next 30 days. Fixed in github.com/bnb-chain/tss-lib 2.0.0.
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.
Severity
- EPSS
- 0.5% chance of exploitation in the next 30 days; higher than 44% of CVEs (scores of 2026-10-31)
- CWE
- CWE-294
- Published
- Modified
- Record from
- the NVD, synced
Affected
- iofinnet:tss-lib
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-c58h-qv6g-fw74 | Go | github.com/bnb-chain/tss-lib | <2.0.0 | 2.0.0 |
| GHSA-c58h-qv6g-fw74 | Go | github.com/binance-chain/tss-lib | <2.0.0 | 2.0.0 |
| GO-2023-1867 | Go | github.com/bnb-chain/tss-lib | all versions | no fix published |
| GO-2023-1867 | Go | github.com/binance-chain/tss-lib | all versions | no fix published |
References
- https://github.com/IoFinnet/tss-lib/releases/tag/v2.0.0
- https://medium.com/%40iofinnet/security-disclosure-for-ecdsa-and-eddsa-threshold-signature-schemes-4e969af7155b
- https://github.com/IoFinnet/tss-lib/releases/tag/v2.0.0
- https://medium.com/%40iofinnet/security-disclosure-for-ecdsa-and-eddsa-threshold-signature-schemes-4e969af7155b