{"id":"GHSA-r2h5-3hgw-8j34","aliases":["GO-2023-1583"],"url":"https://o3.security/vulnerability/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","published":"2023-02-17T20:51:24Z","modified":"2024-08-20T20:59:06.947612Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"github.com/edgelesssys/constellation/v2","fixedVersion":"2.5.2"}],"fix":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"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2024-08-20T20:59:06.947612Z"}}