[Japanese]

JVNDB-2016-000223

Cybozu Garoon vulnerable to information disclosure

Overview

Cybozu Garoon provided by Cybozu,Inc. is a groupware. Cybozu Garoon contains an information disclosure vulnerability (CWE-200).

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


Cybozu, Inc.
  • Cybozu Garoon 3.0.0 to 4.2.2

Impact

Cybozu Garoon uses HTTPS communication, therefore an attacker can not eavesdrop on communication under normal operations. However, if a user conducts a specific operation while an attacker eavesdrops on communication in some way, the attacker may be able to obtain a token issued against CSRF attack.
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-2016-4907
References

  1. JVN : JVN#13218253
  2. National Vulnerability Database (NVD) : CVE-2016-4907
Revision History

  • [2016/12/19]
      Web page was published
    [2017/11/27]
      References : Content was added

Date Public2016/12/19
Date First Published2016/12/19
Date Last Updated2017/11/27