mt-phpincgi vulnerable to PHP object injection


mt-phpincgi is script that runs Movable Type templates as PHP. mt-phpincgi contains a PHP object Injection vulnerability.

According to the reporter, attacks that attempt to exploit this vulnerability have been confirmed.
CVSS Severity (What is CVSS?)

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
Affected Products

Ichi Fujimoto
  • mt-phpincgi

This vulnerability has been addressed in mt-phpincgi.php security update (in Japanese) released on 2015/05/15.

Arbitrary PHP code may be executed on the server by an unauthenticated attacker.

[Apply the update]
The developer has released an update at mt-phpincgi.php security update.
Apply the update according to the information provided by the developer.
Vendor Information

Ichi Fujimoto
CWE (What is CWE?)

  1. Code Injection(CWE-94) [IPA Evaluation]
CVE (What is CVE?)

  1. CVE-2015-2945

  1. JVN : JVN#64459670
  2. National Vulnerability Database (NVD) : CVE-2015-2945
  3. IPA SECURITY ALERTS : Security Alert for Vulnerability in mt-phpincgi (JVN#64459670) (in Japanese)
Revision History

  • [2015/05/20]
      Web page was published
      Solution was modified
      References : Content was added