Published:2022/06/29 Last Updated:2022/06/29
JVN#41017328
HOME SPOT CUBE2 vulnerable to OS command injection
Overview
HOME SPOT CUBE2 provided by KDDI CORPORATION contains an OS command injection vulnerability.
Products Affected
- HOME SPOT CUBE2 V102 and earlier
Description
HOME SPOT CUBE2 provided by KDDI CORPORATION contains an OS command injection vulnerability (CWE-78) due to improper processing of data received from DHCP server.
Impact
An arbitrary OS command may be executed on the product if a malicious DHCP server is placed on the WAN side of the product.
Solution
Apply the workaround
Applying following workaround may mitigate the impact of this vulnerability.
- Connect the WAN port of the product to a trusted ISP line
Vendor Status
| Vendor | Link |
| KDDI CORPORATION | HOME SPOT CUBE2 (Text in Japanese) |
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
Alice Rose 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-2022-33948 |
| JVN iPedia |
JVNDB-2022-000049 |