smalruby-editor vulnerable to OS command injection


smalruby-editor provided by Ruby Programming Shounendan is web-based editor to create Ruby programs. smalruby-editor containts an OS command injection vulnerability (CWE-78).

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

Base Metrics: 7.5 (High) [IPA Score]
  • Access Vector: Network
  • Access Complexity: Low
  • Authentication: None
  • Confidentiality Impact: Partial
  • Integrity Impact: Partial
  • Availability Impact: Partial

CVSS V3 Severity:
Base Metrics: 7.3 (High) [IPA Score]
  • Access Vector: Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: None
  • Scope: Unchanged
  • Confidentiality Impact: Low
  • Integrity Impact: Low
  • Availability Impact: Low
Affected Products

Ruby Programming Shounendan
  • smalruby-editor v0.4.0 and earlier


A remote attacker may execute arbitrary OS command on the server where smalruby-editor resides.

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

Ruby Programming Shounendan
CWE (What is CWE?)

  1. OS Command Injection(CWE-78) [IPA Evaluation]
CVE (What is CVE?)

  1. CVE-2017-2096

  1. JVN : JVN#50197114
  2. National Vulnerability Database (NVD) : CVE-2017-2096
Revision History

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