CVE-2021-40327

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. 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.

5.9 /10

CVSS v3 : MEDIUM

V3 Legend

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

V2 Legend

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
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

21 Nov 2024, 06:23

Type Values Removed Values Added
References () https://developer.arm.com/support/arm-security-updates - Third Party Advisory () https://developer.arm.com/support/arm-security-updates - Third Party Advisory
References () https://git.trustedfirmware.org/TF-M/trusted-firmware-m.git/ - Patch, Vendor Advisory () https://git.trustedfirmware.org/TF-M/trusted-firmware-m.git/ - Patch, Vendor Advisory
References () https://tf-m-user-guide.trustedfirmware.org/docs/security/security_advisories/profile_small_key_id_encoding_vulnerability.html - Patch, Vendor Advisory () https://tf-m-user-guide.trustedfirmware.org/docs/security/security_advisories/profile_small_key_id_encoding_vulnerability.html - Patch, Vendor Advisory

25 Jan 2022, 14:35

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown 		v2 : 2.6
v3 : 5.9
CPE cpe:2.3:a:trustedfirmware:trusted_firmware-m:1.4.0:*:*:*:*:*:*:*
CWE CWE-862
References (CONFIRM) https://tf-m-user-guide.trustedfirmware.org/docs/security/security_advisories/profile_small_key_id_encoding_vulnerability.html - (CONFIRM) https://tf-m-user-guide.trustedfirmware.org/docs/security/security_advisories/profile_small_key_id_encoding_vulnerability.html - Patch, Vendor Advisory
References (MISC) https://git.trustedfirmware.org/TF-M/trusted-firmware-m.git/ - (MISC) https://git.trustedfirmware.org/TF-M/trusted-firmware-m.git/ - Patch, Vendor Advisory
References (MISC) https://developer.arm.com/support/arm-security-updates - (MISC) https://developer.arm.com/support/arm-security-updates - Third Party Advisory

13 Jan 2022, 16:16

Type Values Removed Values Added
New CVE
Information

Published : 2022-01-13 16:15

Updated : 2024-11-21 06:23

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