Trustee is a set of tools and components for attesting confidential guests and providing secrets to them. The ART (**Attestation Results Token**) token, generated by AS, could be manipulated by MITM attacker, but the verifier (CoCo Verification Demander like KBS) could still verify it successfully. In the payload of ART token, the ‘jwk’ could be replaced by attacker with his own pub key. Then attacker can use his own corresponding private key to sign the crafted ART token. Based on current code implementation (v0.8.0), such replacement and modification can not be detected. This issue has been addressed in version 0.8.2 and all users are advised to upgrade. There are no known workarounds for this vulnerability.
History

Tue, 12 Nov 2024 18:15:00 +0000

Type Values Removed Values Added
First Time appeared Confidential-containers
Confidential-containers trustee
CPEs cpe:2.3:a:confidential-containers:trustee:*:*:*:*:*:*:*:*
Vendors & Products Confidential-containers
Confidential-containers trustee
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Fri, 08 Nov 2024 18:45:00 +0000

Type Values Removed Values Added
Description Trustee is a set of tools and components for attesting confidential guests and providing secrets to them. The ART (**Attestation Results Token**) token, generated by AS, could be manipulated by MITM attacker, but the verifier (CoCo Verification Demander like KBS) could still verify it successfully. In the payload of ART token, the ‘jwk’ could be replaced by attacker with his own pub key. Then attacker can use his own corresponding private key to sign the crafted ART token. Based on current code implementation (v0.8.0), such replacement and modification can not be detected. This issue has been addressed in version 0.8.2 and all users are advised to upgrade. There are no known workarounds for this vulnerability.
Title The Attestation Results Token can be arbitrarily modified without being detected in Trustee
Weaknesses CWE-287
References
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2024-11-08T18:40:31.701Z

Updated: 2024-11-12T17:17:50.487Z

Reserved: 2024-11-04T17:46:16.777Z

Link: CVE-2024-51997

cve-icon Vulnrichment

Updated: 2024-11-08T20:07:16.754Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2024-11-08T19:15:06.487

Modified: 2024-11-12T13:56:54.483

Link: CVE-2024-51997

cve-icon Redhat

No data.