[Japanese]

JVNDB-2017-000028

Cybozu Garoon fails to restrict access permission in the Phone Messages function

Overview

Cybozu Garoon provided by Cybozu,Inc. is a groupware. Cybozu Garoon contains an access restriction flaw in the Phone Messages function

Yuji Tounai reported this vulnerability to Cybozu, Inc., and Cybozu, Inc. reported it 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?)

Base Metrics: 4.0 (Medium) [IPA Score]
  • Access Vector: Network
  • Access Complexity: Low
  • Authentication: Single Instance
  • Confidentiality Impact: None
  • Integrity Impact: Partial
  • Availability Impact: None

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


Cybozu, Inc.
  • Cybozu Garoon 3.0.0 to 4.2.3

Impact

A user may set uncofirmed phone messages to be displayed as if they have already been confirmed.
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. Permissions(CWE-264) [NVD Evaluation]
CVE (What is CVE?)

  1. CVE-2017-2091
References

  1. JVN : JVN#73182875
  2. National Vulnerability Database (NVD) : CVE-2017-2091
Revision History

[2017/02/20]
  Web page was published
[2017/06/01]
  References : Content was added