CVE-2021-40327

Trusted Firmware-M (TF-M) 1.4.0, when Profile Small is used, has incorrect access control. NSPE can access a secure key (held by the Crypto service) based solely on knowledge of its key ID. For example, there is no authorization check associated with the relationship between a caller and a key owner.

CVSS v3 5.9 MEDIUM
CVSS v2.0 2.6 LOW

5.9^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.2 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

2.6^/10

CVSS v2.0 : LOW

Vector : AV:N/AC:H/Au:N/C:P/I:N/A:N

Exploitability : 4.9 / Impact : 2.9

Access Vector NETWORK

Access Complexity HIGH

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

References

Link	Resource
https://developer.arm.com/support/arm-security-updates	Third Party Advisory
https://git.trustedfirmware.org/TF-M/trusted-firmware-m.git/	Patch Vendor Advisory
https://tf-m-user-guide.trustedfirmware.org/docs/security/security_advisories/profile_small_key_id_encoding_vulnerability.html	Patch Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:trustedfirmware:trusted_firmware-m:1.4.0:*:*:*:*:*:*:*

History

No history.

Information

Published : 2022-01-13 16:15

Updated : 2024-02-28 18:48

NVD link : CVE-2021-40327

Mitre link : CVE-2021-40327

CVE.ORG link : CVE-2021-40327

JSON object : View

Products Affected

trustedfirmware

trusted_firmware-m

CWE

CWE-862

Missing Authorization

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