{"id":"GHSA-r2h5-3hgw-8j34","summary":"User data in TPM attestation vulnerable to MITM","details":"### Impact\nAttestation *user data* (such as the digest of the public key in an aTLS connection) was bound to the issuer's TPM, but not to its PCR state. An attacker could intercept a node initialization, initialize the node themselves, and then impersonate an uninitialized node to the validator. In practice, this meant that a CSP insider with sufficient privileges would have been able to join a node under their control to a Constellation cluster.\n\n### Patches\nThe issue has been patched in [v2.5.2](https://github.com/edgelesssys/constellation/releases/tag/v2.5.2).\n\n### Workarounds\nnone","aliases":["GO-2023-1583"],"modified":"2024-08-20T20:59:06.947612Z","published":"2023-02-17T20:51:24Z","database_specific":{"cwe_ids":["CWE-200"],"severity":"HIGH","github_reviewed":true,"github_reviewed_at":"2023-02-17T20:51:24Z","nvd_published_at":null},"references":[{"type":"WEB","url":"https://github.com/edgelesssys/constellation/security/advisories/GHSA-r2h5-3hgw-8j34"},{"type":"PACKAGE","url":"https://github.com/edgelesssys/constellation"},{"type":"WEB","url":"https://github.com/edgelesssys/constellation/releases/tag/v2.5.2"}],"affected":[{"package":{"name":"github.com/edgelesssys/constellation/v2","ecosystem":"Go","purl":"pkg:golang/github.com/edgelesssys/constellation/v2"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2.5.2"}]}],"database_specific":{"last_known_affected_version_range":"\u003c= 2.5.1","source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/02/GHSA-r2h5-3hgw-8j34/GHSA-r2h5-3hgw-8j34.json"}}],"schema_version":"1.9.0"}