[Japanese]

JVNDB-2018-000120

Multiple directory traversal vulnerabilities in Cybozu Office

Overview

Cybozu Office provided by Cybozu, Inc. contains multiple directory traversal vulnerabilities below.
* Directory traversal vulnerability due to a flaw in processing parameter of the HTTP request (CWE-22) - CVE-2018-0703
* Directory traversal vulnerability due to a flaw in processing parameter when logging out Keitai Screen (CWE-22) - CVE-2018-0704

Yuji Tounai 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 8.6 (High) [IPA Score]
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: None
  • Scope: Changed
  • Confidentiality Impact: None
  • Integrity Impact: High
  • Availability Impact: None
CVSS V2 Severity:
Base Metrics 7.8 (High) [IPA Score]
  • Access Vector: Network
  • Access Complexity: Low
  • Authentication: None
  • Confidentiality Impact: None
  • Integrity Impact: Complete
  • Availability Impact: None
The above CVSS base scores have been assigned for CVE-2018-0703

CVSS V3 Severity:
Base Metrics: 7.7 (High) [IPA Score]
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: Low
  • User Interaction: None
  • Scope: Changed
  • Confidentiality Impact: None
  • Integrity Impact: High
  • Availability Impact: None
CVSS V2 Severity:
Base Metrics: 6.8 (Medium) [IPA Score]
  • Access Vector: Network
  • Access Complexity: Low
  • Authentication: Single
  • Confidentiality Impact: None
  • Integrity Impact: Complete
  • Availability Impact: None
The above CVSS base scores have been assigned for CVE-2018-0704
Affected Products


Cybozu, Inc.
  • Cybozu Office 10.0.0 to 10.8.1

Impact

A remote attacker may delete arbitrary files on the server.
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. Path Traversal(CWE-22) [IPA Evaluation]
CVE (What is CVE?)

  1. CVE-2018-0703
  2. CVE-2018-0704
References

  1. JVN : JVN#15232217
  2. National Vulnerability Database (NVD) : CVE-2018-0703
  3. National Vulnerability Database (NVD) : CVE-2018-0704
Revision History

  • [2018/11/14]
      Web page was published
  • [2019/08/27]
      References : Content was added

Date Public2018/11/14
Date First Published2018/11/14
Date Last Updated2019/08/27