ghsa-c58h-qv6g-fw74
Vulnerability from github
Published
2023-04-21 18:30
Modified
2025-02-05 19:42
Severity ?
6.8 (Medium) - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
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.

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/bnb-chain/tss-lib"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.0.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/binance-chain/tss-lib"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.0.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2022-47930"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-294"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-02-05T19:42:25Z",
    "nvd_published_at": "2023-04-21T18:15:07Z",
    "severity": "MODERATE"
  },
  "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.",
  "id": "GHSA-c58h-qv6g-fw74",
  "modified": "2025-02-05T19:42:25Z",
  "published": "2023-04-21T18:30:24Z",
  "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"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "IO FinNet tss-lib vulnerable to replay attacks involving proofs"
}


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