Published:2018/11/14  Last Updated:2018/11/14

JVN#15232217
Multiple directory traversal vulnerabilities in Cybozu Office

Overview

Cybozu Office contains multiple directory traversal vulnerabilities.

Products Affected

  • Cybozu Office 10.0.0 to 10.8.1

Description

Cybozu Office provided by Cybozu, Inc. contains multiple directory traversal vulnerabilities below.

  • Directory traversal vulnerability due to a flaw in processing parameter of the HTTP request (CWE-22) - CVE-2018-0703
    CVSS v3 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N Base Score: 8.6
    CVSS v2 AV:N/AC:L/Au:N/C:N/I:C/A:N Base Score: 7.8
  • Directory traversal vulnerability due to a flaw in processing parameter when logging out Keitai Screen (CWE-22) - CVE-2018-0704
    CVSS v3 CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N Base Score: 7.7
    CVSS v2 AV:N/AC:L/Au:S/C:N/I:C/A:N Base Score: 6.8

Impact

A remote attacker may delete arbitrary files on the server.

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 2018/11/14 Cybozu, Inc. website

References

JPCERT/CC Addendum

Vulnerability Analysis by JPCERT/CC

Credit

Yuji Tounai reported this vulnerability to Cybozu, Inc., and 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
JPCERT Reports
CERT Advisory
CPNI Advisory
TRnotes
CVE CVE-2018-0703
CVE-2018-0704
JVN iPedia JVNDB-2018-000120