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WS-2023-0044
Good to know:
Date: February 17, 2023
User data in TPM attestation vulnerable to MITM. Attestation 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.
Language: Go
Severity Score
Severity Score
Weakness Type (CWE)
Information Leak / Disclosure
CWE-200Top Fix
CVSS v3.1
Base Score: |
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Attack Vector (AV): | NETWORK |
Attack Complexity (AC): | LOW |
Privileges Required (PR): | LOW |
User Interaction (UI): | REQUIRED |
Scope (S): | CHANGED |
Confidentiality (C): | LOW |
Integrity (I): | LOW |
Availability (A): | NONE |