Published:2017/10/11 Last Updated:2017/10/11
JVN#14658424
Cybozu Office fails to restrict access permissions
Overview
Cybozu Office fails to restrict access permissions.
Products Affected
- Cybozu Office 10.0.0 to 10.6.1
Description
Cybozu Office provided by Cybozu, Inc. fails to restrict access permissions (CWE-284) due to an issue in "Cabinet" function.
Impact
A user who can login to Cybozu Office may perform arbitrary operations to the folder where the user does not have acces with its privilege.
Solution
Update the Software
Update to the latest version according to the information provided by the developer.
Vendor Status
| Vendor | Status | Last Update | Vendor Notes |
|---|---|---|---|
| Cybozu, Inc. | Vulnerable | 2017/10/11 | Cybozu, Inc. website |
References
JPCERT/CC Addendum
Vulnerability Analysis by JPCERT/CC
CVSS v3
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Base Score:
4.3
| 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:N/AC:L/Au:S/C:N/I:P/A:N
Base Score:
4.0
| 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
Cybozu, Inc. reported this vulnerability to JPCERT/CC to notify users of its solution through JVN. JPCERT/CC and Cybozu, Inc. coordinated under the 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-2017-10857 |
| JVN iPedia |
JVNDB-2017-000225 |