[Japanese]

JVNDB-2016-000136

Cybozu Mailwise vulnerable to information disclosure

Overview

Cybozu Mailwise contains an information disclosure vulnerability in the mail view page.

Masato Kinugawa 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.
CVSS Severity (What is CVSS?)

CVSS V3 Severity:
Base Metrics 4.7 (Medium) [IPA Score]
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: Required
  • Scope: Changed
  • Confidentiality Impact: Low
  • Integrity Impact: None
  • Availability Impact: None
CVSS V2 Severity:
Base Metrics 4.3 (Medium) [IPA Score]
  • Access Vector: Network
  • Access Complexity: Medium
  • Authentication: None
  • Confidentiality Impact: Partial
  • Integrity Impact: None
  • Availability Impact: None
Affected Products


Cybozu, Inc.
  • Cybozu Mailwise version 5.0.0 through 5.3.2

Impact

When a user opens a specially crafted email, an attacker can notice that the user read the email.
Solution

[Update the Software]
Update to the latest version according to the information provided by the developer.
Vendor Information

Cybozu, Inc.
CWE (What is CWE?)

  1. Information Exposure(CWE-200) [IPA Evaluation]
CVE (What is CVE?)

  1. CVE-2016-4842
References

  1. JVN : JVN#02576342
  2. National Vulnerability Database (NVD) : CVE-2016-4842
Revision History

  • [2016/08/16]
      Web page was published
    [2017/05/23]
      References : Content was added

Date Public2016/08/16
Date First Published2016/08/16
Date Last Updated2017/05/23