Published:2023/05/08 Last Updated:2023/05/08
JVN#13306058
JINS MEME CORE uses a hard-coded cryptographic key
Overview
JINS MEME CORE provided by JINS Inc. uses a hard-coded cryptographic key.
Products Affected
- JINS MEME CORE Firmware version 2.2.0 and earlier
Description
JINS MEME CORE provided by JINS Inc. is a nose pad type sensor attached to a glass frame. JINS MEME CORE uses a hard-coded cryptographic key (CWE-321).
Impact
A network-adjacent attacker may decrypt data acquired by a sensor of the affected product.
Solution
Update the firmware
Update the firmware to the latest version according to the information provided by the developer.
Vendor Status
| Vendor | Link |
| JINS Inc. | JINS MEME firmware 2.3.0 released. (Text in Japanese) |
References
JPCERT/CC Addendum
Vulnerability Analysis by JPCERT/CC
CVSS v3
CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Base Score:
3.1
| Attack Vector(AV) | Physical (P) | Local (L) | Adjacent (A) | Network (N) |
|---|---|---|---|---|
| Attack Complexity(AC) | High (H) | Low (L) | ||
| Privileges Required(PR) | High (H) | Low (L) | None (N) | |
| User Interaction(UI) | Required (R) | None (N) | ||
| Scope(S) | Unchanged (U) | Changed (C) | ||
| Confidentiality Impact(C) | None (N) | Low (L) | High (H) | |
| Integrity Impact(I) | None (N) | Low (L) | High (H) | |
| Availability Impact(A) | None (N) | Low (L) | High (H) |
CVSS v2
AV:A/AC:M/Au:N/C:P/I:N/A:N
Base Score:
2.9
| Access Vector(AV) | Local (L) | Adjacent Network (A) | Network (N) |
|---|---|---|---|
| Access Complexity(AC) | High (H) | Medium (M) | Low (L) |
| Authentication(Au) | Multiple (M) | Single (S) | None (N) |
| Confidentiality Impact(C) | None (N) | Partial (P) | Complete (C) |
| Integrity Impact(I) | None (N) | Partial (P) | Complete (C) |
| Availability Impact(A) | None (N) | Partial (P) | Complete (C) |
Credit
MASAHIRO IIDA of LAC Co.,Ltd. reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.
Other Information
| JPCERT Alert |
|
| JPCERT Reports |
|
| CERT Advisory |
|
| CPNI Advisory |
|
| TRnotes |
|
| CVE |
CVE-2023-27921 |
| JVN iPedia |
JVNDB-2023-000044 |