Published:2011/10/31  Last Updated:2011/11/08

JVN#41032068
Multiple SKYARC System Co., Ltd. products fail to restrict access permissions

Overview

Multiple products provided by SKYARC System Co., Ltd. contain an issue where access permissions are not restricted.

Products Affected

  • MTCMS version 5.251 and earlier
  • MTCMS Enterprise version 5.251 and earlier
  • MTCMS Smart version 5.251 and earlier

The following pluigins for Movable Type below are also affected:

  • MultiFileuploader version 0.44 and earlier
  • MailPack version 1.741 and earlier
  • EntryImExporter version 1.41 and earlier
  • AutoTagging version 0.08 and earlier
  • AuthorEffective version 1.03 and earlier
  • DuplicateEntry version 1.2 and earlier

Description

MTCMS and multiple Movable Type plugins provided by SKYARC System Co., Ltd. contain an issue where access permissions are not restricted.

Impact

A user without the appropriate privileges may alter settings and files.

Solution

Apply an update
Update to the latest version according to the information provided by the developer.

Vendor Status

Vendor Link
SKYARC System Co., Ltd. [Important] MTCMS 5.252 and security updates are released (Japanese only)
Security updates for Movable Type plugins (Japanese only)

References

JPCERT/CC Addendum

Vulnerability Analysis by JPCERT/CC

Analyzed on 2011.10.31

Measures Conditions Severity
Access Required can be attacked over the Internet using packets
  • High
Authentication login caused to be created by an administrator
  • Low-Mid
User Interaction Required the vulnerability can be exploited without an honest user taking any action
  • High
Exploit Complexity some expertise and/or luck required (most buffer overflows, guessing correctly in small space, expertise in Windows function calls)
  • Mid-High

Description of each analysis measures

Credit

Other Information

JPCERT Alert
JPCERT Reports
CERT Advisory
CPNI Advisory
TRnotes
CVE CVE-2011-3993
JVN iPedia JVNDB-2011-000093

Update History

2011/11/08
Information under "Products Affected" and "Vendor Status" were updated.