[Japanese]

JVNDB-2016-000190

Cybozu Office vulnerable to mail header injection

Overview

Cybozu Office contains a mail header injection vulnerability in the process of sending emails.

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 4.3 (Medium) [IPA Score]
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: Required
  • Scope: Unchanged
  • Confidentiality Impact: None
  • Integrity Impact: Low
  • Availability Impact: None
CVSS V2 Severity:
Base Metrics 2.6 (Low) [IPA Score]
  • Access Vector: Network
  • Access Complexity: High
  • Authentication: None
  • Confidentiality Impact: None
  • Integrity Impact: Partial
  • Availability Impact: None
Affected Products


Cybozu, Inc.
  • Cybozu Office 9.0.0 to 10.4.0

Impact

If a user is tricked into sending a specially crafted request, the header of the email to be sent may be altered. As a result, unintended emails may be sent.
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. Improper Input Validation(CWE-20) [IPA Evaluation]
CVE (What is CVE?)

  1. CVE-2016-4868
References

  1. JVN : JVN#08736331
  2. National Vulnerability Database (NVD) : CVE-2016-4868
Revision History

  • [2016/10/03]
      Web page was published
    [2017/04/24]
      References : Content was added

Date Public2016/10/03
Date First Published2016/10/03
Date Last Updated2017/04/24