Published:2021/05/13 Last Updated:2021/05/13
JVN#13076220
RFNTPS vulnerable to OS command injection
Overview
RFNTPS contains an OS command injection vulnerability.
Products Affected
- RFNTPS firmware versions System_01000004, Web_01000004 and earlier
Description
RFNTPS provided by NIPPON ANTENNA Co.,Ltd. is a terrestrial reception type NTP server. RFNTPS contains an OS command injection vulnerability (CWE-78).
Impact
A user on the same LAN who can access the product may execute an arbitrary OS command with root privilege.
Solution
Update the Firmware
Update the firmware to the latest version according to the information provided by the developer.
Vendor Status
| Vendor | Status | Last Update | Vendor Notes |
|---|---|---|---|
| NIPPON ANTENNA Co.,Ltd. | Vulnerable | 2021/05/13 | NIPPON ANTENNA Co.,Ltd. website |
References
JPCERT/CC Addendum
Vulnerability Analysis by JPCERT/CC
CVSS v3
CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Base Score:
8.8
| 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:L/Au:N/C:P/I:P/A:P
Base Score:
5.8
| 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
Tomoomi Iwata of NEC Corporation reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.
Other Information
| JPCERT Alert |
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| JPCERT Reports |
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| CERT Advisory |
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| CPNI Advisory |
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| TRnotes |
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| CVE |
CVE-2021-20719 |
| JVN iPedia |
JVNDB-2021-000039 |