{"id":"CVE-2022-47930","aliases":["GO-2023-1867"],"url":"https://o3.security/vulnerability/CVE-2022-47930","summary":"IO FinNet tss-lib vulnerable to replay attacks involving proofs","details":"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.","published":"2023-04-21T18:30:24Z","modified":"2025-02-05T20:27:15.746663Z","cvss":{"score":6.8,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N"},"epss":{"score":0.00523,"percentile":0.42158,"asOf":"2026-08-23"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"github.com/bnb-chain/tss-lib","fixedVersion":"2.0.0"},{"ecosystem":"Go","name":"github.com/binance-chain/tss-lib","fixedVersion":"2.0.0"}],"fix":{"url":"https://github.com/bnb-chain/tss-lib/pull/256","label":"bnb-chain/tss-lib#256"},"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-47930"},{"type":"WEB","url":"https://github.com/bnb-chain/tss-lib/pull/256"},{"type":"WEB","url":"https://github.com/bnb-chain/tss-lib/commit/1a14f3ac9ecbf6115e80d44c7fff16bcc3139250"},{"type":"WEB","url":"https://github.com/IoFinnet/tss-lib/releases/tag/v2.0.0"},{"type":"PACKAGE","url":"https://github.com/bnb-chain/tss-lib"},{"type":"WEB","url":"https://medium.com/@iofinnet/security-disclosure-for-ecdsa-and-eddsa-threshold-signature-schemes-4e969af7155b"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2025-02-05T20:27:15.746663Z"}}