JVN#51737843: Multiple vulnerabilities in Cybozu Office

Cybozu Office provided by Cybozu, Inc. contains multiple vulnerabilities listed below.

Information disclosure in the application “Message” when viewing an external image (CWE-200) - CVE-2018-0526

Stored cross-site scripting in “E-mail Details Screen” of the application “E-mail” (CWE-79) - CVE-2018-0527

Browse restriction bypass in the application “Scheduler” (CWE-264) - CVE-2018-0528

Denial-of-service (DoS) in the application “Message” due to a flaw in processing of an attached file (CWE-20) - CVE-2018-0529

Reflected cross-site scripting in the application “MultiReport” (CWE-79) - CVE-2018-0565

Browse restriction bypass in the application “Scheduler” (CWE-264) - CVE-2018-0566

Operation restriction bypass in the application “Bulletin” (CWE-264) - CVE-2018-0567

Impact

• If a user browses a message, an attached image located in an external server may be displayed without the user’s permission - CVE-2018-0526
• An arbitrary script may be executed on the logged in user’s web browser - CVE-2018-0527, CVE-2018-0565
• A user who can login to the product may view the schedules that are not permitted to access - CVE-2018-0528
• Attaching a specially crafted image file in “Compose E-mail screen” by a user may result in Denial-of-service (DoS) condition - CVE-2018-0529
• The schedule may be obtained by a user who does not have privileges to access - CVE-2018-0566
• A user without privileges may access and write data prior to being public - CVE-2018-0567

Solution

Update the Software
Update to the latest version according to the information provided by the developer.

Products Affected

• Cybozu Office 10.0.0 to 10.7.0 (CVE-2018-0526, CVE-2018-0527, CVE-2018-0528, CVE-2018-0529)
• Cybozu Office 10.0.0 to 10.8.0 (CVE-2018-0565, CVE-2018-0566, CVE-2018-0567)