[Japanese]

JVNDB-2021-000057

Multiple cross-site scripting vulnerabilities in EC-CUBE

Overview

EC-CUBE provided by EC-CUBE CO.,LTD. contains multiple cross-site scripting vulnerabilities listed below.
*Cross-site scripting vulnerability (CWE-79) - CVE-2021-20750
*Cross-site scripting vulnerability (CWE-79) - CVE-2021-20751

hibiki moriyama of STNet, Incorporated reported these vulnerabilities to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.
CVSS Severity (What is CVSS?)

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-2021-20750

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-2021-20751
Affected Products


EC-CUBE CO.,LTD.
  • EC-CUBE 3.0.0 to 3.0.18-p2 (EC-CUBE 3 series) (CVE-2021-20750)
  • EC-CUBE 4.0.0 to 4.0.5-p1 (EC-CUBE 4 series) (CVE-2021-20750)
  • EC-CUBE 4.0.0 to 4.0.5-p1 (EC-CUBE 4 series) (CVE-2021-20751)

Impact

The expected impact depends on each vulnerability, but it may be affected as follows.
*If a remote attacker leads an administrator of the product to a specially crafted page and to perform a specific operation, an arbitrary script may be executed on the administrator's web browser - CVE-2021-20750
*If a remote attacker leads an administrator or a user of the product to a specially crafted page and to perform a specific operation, an arbitrary script may be executed on the administrator's or the user's web browser - CVE-2021-20751
Solution

[Update the software]
An update is available for EC-CUBE 4 series.
Update to the latest version according to the information provided by the developer.
For EC-CUBE 3 series, there is no update but a patch is available.

[Apply the patch]
Patches are available for both EC-CUBE 3 and EC-CUBE 4 series.
For more information, refer to the information provided by the developer.
Vendor Information

EC-CUBE CO.,LTD.
CWE (What is CWE?)

  1. Cross-site Scripting(CWE-79) [IPA Evaluation]
CVE (What is CVE?)

  1. CVE-2021-20750
  2. CVE-2021-20751
References

  1. JVN : JVN#95292458
Revision History

  • [2021/06/23]
      Web page was published

Date Public2021/06/23
Date First Published2021/06/23
Date Last Updated2021/06/23