{"id":"GHSA-p94w-42g3-f7h4","summary":"Holder can (re)create authentic credentials after receiving a credential in vp-toolkit","details":"### Impact\nThe [`verifyVerifiableCredential()`](https://github.com/rabobank-blockchain/vp-toolkit/blob/master/src/service/signers/verifiable-credential-signer.ts#L57) method check the cryptographic integrity of the Verifiable Credential, but it does not check if the [`credential.issuer`](https://github.com/rabobank-blockchain/vp-toolkit-models/blob/develop/src/model/verifiable-credential.ts#L129) DID matches the signer of the credential.\n\nThe **verifier** is impacted by this vulnerability.\n\n### Patches\nPatch will be available in version 0.2.2.\n\n### Workarounds\nIn case you trust certain issuers for certain credentials as a verifier, trust the issuer's public key from the `credential.proof.verificationMethod` field.\n\n### References\n[Github issue](https://github.com/rabobank-blockchain/vp-toolkit/issues/13)\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Discuss in the existing [issue](https://github.com/rabobank-blockchain/vp-toolkit/issues/13)\n* [Contact me](https://github.com/rabomarnix)","modified":"2020-02-28T16:38:09Z","published":"2020-03-06T01:16:00Z","database_specific":{"nvd_published_at":null,"cwe_ids":[],"severity":"HIGH","github_reviewed":true,"github_reviewed_at":"2020-02-28T16:38:09Z"},"references":[{"type":"WEB","url":"https://github.com/rabobank-blockchain/vp-toolkit/security/advisories/GHSA-p94w-42g3-f7h4"},{"type":"WEB","url":"https://github.com/rabobank-blockchain/vp-toolkit/issues/13"},{"type":"WEB","url":"https://github.com/rabobank-blockchain/vp-toolkit/commit/6315936d1d7913fd116fa51a0dbbd29d82c0ce17"}],"affected":[{"package":{"name":"vp-toolkit","ecosystem":"npm","purl":"pkg:npm/vp-toolkit"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"0.2.2"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2020/03/GHSA-p94w-42g3-f7h4/GHSA-p94w-42g3-f7h4.json"}}],"schema_version":"1.9.0"}