MATCHA SNS access restriction bypass vulnerability


MATCHA SNS provided by ICZ Corporation is an SNS software.
MATCHA SNS contains an access restriction bypass vulnerability.

Shoji Baba reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.
CVSS Severity (What is CVSS?)

CVSS V2 Severity:
Base Metrics 5.5 (Medium) [IPA Score]
  • Access Vector: Network
  • Access Complexity: Low
  • Authentication: Single Instance
  • Confidentiality Impact: Partial
  • Integrity Impact: Partial
  • Availability Impact: None
Affected Products

ICZ Corporation
  • MATCHA SNS 1.3.6 and earlier


A user without administrative privileges may obtain administrative privileges.

[Update the Software]
Update to the latest version according to the information provided by the developer.
Vendor Information

ICZ Corporation
CWE (What is CWE?)

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

  1. CVE-2015-5645

  1. JVN : JVN#85118545
  2. National Vulnerability Database (NVD) : CVE-2015-5645
Revision History

  • [2015/09/30]
      Web page was published
      References : Content was added