[Japanese]

JVNDB-2020-000027

Cybozu Garoon contains multiple vulnerabilities

Overview

Cybozu Garoon provided by Cybozu, Inc. contains multiple vulnerabilities listed below.
*Authentication bypass in the API used to specify the fields (CWE-287) - CVE-2020-5563
*Cross-site scripting in the application "E-mail" (CWE-79) - CVE-2020-5564
*Input validation bypass in the applications "Workflow" and "MultiReport" (CWE-20) - CVE-2020-5565
*Improper authorization process in the applications "E-mail" and "Messages" (CWE-285) - CVE-2020-5566
*Improper authentication in Application Menu (CWE-287) - CVE-2020-5567
*Cross-site scripting in the applications "Messages" and "Bulletin Board" (CWE-79) - CVE-2020-5568

Cybozu, Inc. reported the following vulnerabilities to JPCERT/CC to notify users of the solution through JVN.

CVE-2020-5563, CVE-2020-5566 and CVE-2020-5568 by Cybozu, Inc.
CVE-2020-5564 by Masato Kinugawa
CVE-2020-5565 by Tanghaifeng
CVE-2020-5567 by Shuichi Uruma
CVSS Severity (What is CVSS?)

CVSS V3 Severity:
Base Metrics 5.3 (Medium) [IPA Score]
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: None
  • Scope: Unchanged
  • Confidentiality Impact: Low
  • Integrity Impact: None
  • Availability Impact: None
CVSS V2 Severity:
Base Metrics 5.0 (Medium) [IPA Score]
  • Access Vector: Network
  • Access Complexity: Low
  • Authentication: None
  • Confidentiality Impact: Partial
  • Integrity Impact: None
  • Availability Impact: None
The above CVSS base scores have been assigned for CVE-2020-5563

CVSS V3 Severity:
Base Metrics: 4.7 (Medium) [IPA Score]
  • Attack Vector: Network
  • Attack Complexity: High
  • Privileges Required: None
  • User Interaction: Required
  • Scope: Changed
  • Confidentiality Impact: Low
  • 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
The above CVSS base scores have been assigned for CVE-2020-5564

CVSS V3 Severity:
Base Metrics: 4.3 (Medium) [IPA Score]
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: Low
  • User Interaction: None
  • Scope: Unchanged
  • Confidentiality Impact: None
  • Integrity Impact: Low
  • Availability Impact: None
CVSS V2 Severity:
Base Metrics: 4.0 (Low) [IPA Score]
  • Access Vector: Network
  • Access Complexity: Low
  • Authentication: Single
  • Confidentiality Impact: None
  • Integrity Impact: Partial
  • Availability Impact: None
The above CVSS base scores have been assigned for CVE-2020-5565

CVSS V3 Severity:
Base Metrics: 4.3 (Medium) [IPA Score]
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: Low
  • User Interaction: None
  • Scope: Unchanged
  • Confidentiality Impact: None
  • Integrity Impact: Low
  • Availability Impact: None
CVSS V2 Severity:
Base Metrics: 4.0 (Low) [IPA Score]
  • Access Vector: Network
  • Access Complexity: Low
  • Authentication: Single
  • Confidentiality Impact: None
  • Integrity Impact: Partial
  • Availability Impact: None
The above CVSS base scores have been assigned for CVE-2020-5566

CVSS V3 Severity:
Base Metrics: 5.3 (Medium) [IPA Score]
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: None
  • Scope: Unchanged
  • Confidentiality Impact: Low
  • Integrity Impact: None
  • Availability Impact: None
CVSS V2 Severity:
Base Metrics: 5.0 (Medium) [IPA Score]
  • Access Vector: Network
  • Access Complexity: Low
  • Authentication: None
  • Confidentiality Impact: Partial
  • Integrity Impact: None
  • Availability Impact: None
The above CVSS base scores have been assigned for CVE-2020-5567

CVSS V3 Severity:
Base Metrics: 6.1 (Medium) [IPA Score]
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: Required
  • Scope: Changed
  • Confidentiality Impact: Low
  • 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
The above CVSS base scores have been assigned for CVE-2020-5568
Affected Products


Cybozu, Inc.
  • Cybozu Garoon 4.0.0 to 4.10.3(CVE-2020-5563, CVE-2020-5564, CVE-2020-5565, CVE-2020-5566, CVE-2020-5567)
  • Cybozu Garoon 4.6.0 to 5.0.0(CVE-2020-5568)

According to the deveroper, CVE-2020-5566 affects the applications "E-mail" and "Messages" in Cybozu Garoon 4.0.0 to 4.0.2, and "Messages" in Cybozu Garoon 4.0.3 to 4.10.3.
Impact

*A remote attacker with access to the API provided by the product may obtain data of the product - CVE-2020-5563
*An arbitrary script may be executed on the user's web browser - CVE-2020-5564, CVE-2020-5568
*A user may alter applications' data - CVE-2020-5565, CVE-2020-5566
*A remote attacker may obtain data of Application Menu - CVE-2020-5567
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]
  2. Permissions(CWE-264) [IPA Evaluation]
  3. Cross-site Scripting(CWE-79) [IPA Evaluation]
CVE (What is CVE?)

  1. CVE-2020-5563
  2. CVE-2020-5564
  3. CVE-2020-5565
  4. CVE-2020-5566
  5. CVE-2020-5567
  6. CVE-2020-5568
References

  1. JVN : JVN#35649781
  2. National Vulnerability Database (NVD) : CVE-2020-5563
  3. National Vulnerability Database (NVD) : CVE-2020-5564
  4. National Vulnerability Database (NVD) : CVE-2020-5565
  5. National Vulnerability Database (NVD) : CVE-2020-5566
  6. National Vulnerability Database (NVD) : CVE-2020-5567
  7. National Vulnerability Database (NVD) : CVE-2020-5568
Revision History

  • [2020/04/28]
      Web page was published

Date Public2020/04/27
Date First Published2020/04/28
Date Last Updated2020/04/28