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JVNDB-2021-000106

Multiple vulnerabilities in baserCMS

Overview

baserCMS provided by baserCMS Users Community contains multiple vulnerabilities listed below.

* OS command injection (CWE-78) - CVE-2021-41243
* Arbitrary code upload vulnerability in Database restore (CWE-434) - CVE-2021-41279

CVE-2021-41243
Akagi Yusuke of NTT-ME CORPORATION reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.

CVE-2021-41279
Daniele Scanu of SoterITSecurity reported this vulnerability to baserCMS Users Community and baserCMS Users Community reported it to JPCERT/CC to notify users of the solution through JVN.
CVSS Severity (What is CVSS?)

CVSS V3 Severity:
Base Metrics 8.8 (High) [IPA Score]
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: Low
  • User Interaction: None
  • Scope: Unchanged
  • Confidentiality Impact: High
  • Integrity Impact: High
  • Availability Impact: High
CVSS V2 Severity:
Base Metrics 9.0 (High) [IPA Score]
  • Access Vector: Network
  • Access Complexity: Low
  • Authentication: Single Instance
  • Confidentiality Impact: Complete
  • Integrity Impact: Complete
  • Availability Impact: Complete
The above CVSS base scores have been assigned for CVE-2021-41243

CVSS V3 Severity:
Base Metrics: 4.3 (Medium) [JPCERT/CC 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) [JPCERT/CC 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-2021-41279
Affected Products


baserCMS Users Community
  • baserCMS versions prior to 4.5.4

Impact

* An arbitrary OS command may be executed by a user who can access the product with Operator authority - CVE-2021-41243
* An illegal code may be uploaded by a user who can access the product with Operator authority. As a result, arbitrary code may be executed - CVE-2021-41279
Solution

[Update the software]
Update the software to the latest version according to the information provided by the developer.
The developer released baserCMS 4.5.4 that contains a fix for these vulnerabilities.
Vendor Information

baserCMS Users Community
CWE (What is CWE?)

  1. OS Command Injection(CWE-78) [IPA Evaluation]
  2. No Mapping(CWE-Other) [IPA Evaluation]
CVE (What is CVE?)

  1. CVE-2021-41243
  2. CVE-2021-41279
References

  1. JVN : JVN#81376414
Revision History

  • [2021/11/26]
      Web page was published

Date Public2021/11/26
Date First Published2021/11/26
Date Last Updated2021/11/26