MilkyStep vulnerable to OS command injection


MilkyStep provided by Igreks Inc. is a CGI for e-mail newsletter distribution management. MilkyStep contains an OS command injection vulnerability (CWE-78).

Kusano Kazuhiko 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

Affected Products

Igreks Inc.
  • MilkyStep Light Ver0.94 and earlier
  • MilkyStep Professional Ver1.82 and earlier
  • MilkyStep Professional OEM Ver1.82 and earlier


An arbitrary OS command may be executed by an attacker.

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

Igreks Inc.
CWE (What is CWE?)

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

  1. CVE-2015-2955

  1. JVN : JVN#05559185
  2. National Vulnerability Database (NVD) : CVE-2015-2955
  3. IPA SECURITY ALERTS : Security Alert for Vulnerability in MilkyStep (JVN#05559185)(JVN#52478686) (in Japanese)
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