[Japanese]

JVNDB-2021-000004

Multiple vulnerabilities in acmailer

Overview

acmailer provided by Seeds Co.,Ltd. contains multiple vulnerabilities listed below.

*Improper Access Control (CWE-284) - CVE-2021-20617
*Privilege Chaining (CWE-268) - CVE-2021-20618

ma.la reported these vulnerabilities to the developer, and also to IPA in order to notify users of its solution through JVN.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.
CVSS Severity (What is CVSS?)

CVSS V3 Severity:
Base Metrics 9.8 (Critical) [IPA Score]
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: None
  • Scope: Unchanged
  • Confidentiality Impact: High
  • Integrity Impact: High
  • Availability Impact: High
CVSS V2 Severity:
Base Metrics 7.5 (High) [IPA Score]
  • Access Vector: Network
  • Access Complexity: Low
  • Authentication: None
  • Confidentiality Impact: Partial
  • Integrity Impact: Partial
  • Availability Impact: Partial
The above CVSS base scores have been assigned for CVE-2021-20617

CVSS V3 Severity:
Base Metrics: 9.8 (Critical) [IPA Score]
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: None
  • Scope: Unchanged
  • Confidentiality Impact: High
  • Integrity Impact: High
  • Availability Impact: High
CVSS V2 Severity:
Base Metrics: 7.5 (High) [IPA Score]
  • Access Vector: Network
  • Access Complexity: Low
  • Authentication: None
  • Confidentiality Impact: Partial
  • Integrity Impact: Partial
  • Availability Impact: Partial
The above CVSS base scores have been assigned for CVE-2021-20618
Affected Products


Seeds Co.,Ltd.
  • acmailer ver. 4.0.1 and earlier(CVE-2021-20617)
  • acmailer ver. 4.0.2 and earlier(CVE-2021-20618)
  • acmailer DB ver. 1.1.3 and earlier(CVE-2021-20617)
  • acmailer DB ver. 1.1.4 and earlier(CVE-2021-20618)

Impact

*A remote attacker may execute an arbitrary OS command/obtain administrative privileges and as a result, sensitive information on the server may be obtained - CVE-2021-20617
*A remote attacker may obtain administrative privileges and as a result, sensitive information on the server may be obtained - CVE-2021-20618
Solution

[Update the software]
Update the software to the latest version according to the information provided by the developer.
According to the developer, these vulnerabilities have been already addressed in the following versions.

  • acmailer ver. 4.0.3 or later
  • acmailer DB ver. 1.1.5 or later


[Apply workarounds]
Applying workarounds may mitigate the impacts of these vulnerabilities.
CVE-2021-20617

  • Delete the following file in the folder directly below the folder where the product is placed.
    • init_ctl.cgi


CVE-2021-20618

  • Delete the following file in the folder directly below the folder where the product is placed.
    • enq_detail.cgi
    • enq_detail_mail.cgi
    • enq_edit.cgi
    • enq_form.cgi
    • enq_list.cgi
Vendor Information

Seeds Co.,Ltd.
CWE (What is CWE?)

  1. Permissions(CWE-264) [IPA Evaluation]
CVE (What is CVE?)

  1. CVE-2021-20617
  2. CVE-2021-20618
References

  1. JVN : JVN#35906450
  2. National Vulnerability Database (NVD) : CVE-2021-20617
  3. National Vulnerability Database (NVD) : CVE-2021-20618
Revision History

  • [2021/01/14]
      Web page was published

Date Public2021/01/14
Date First Published2021/01/14
Date Last Updated2021/01/14