Published:2012/03/19  Last Updated:2012/03/19

Janetter vulnerable to information disclosure


Janetter contains an information disclosure vulnerability.

Products Affected

  • Janetter for Windows versions prior to
  • Janetter for Macintosh versions prior to 3.3.0


Janetter is a client software for using Twitter. Janetter contains an information disclosure vulnerability.


When a malicious page is opened with a web browser while Janetter is being used, session information used to communicate with Twitter may be disclosed.


Update the software
Update to the latest version according to the information provided by the developer.

According to the developer, the Windows version of Janetter contains an automatic update feature. This feature automatically updates Janetter once a day.

Vendor Status

Vendor Link
Jane, Inc. Janetter - Update
Janetter Official Blog


JPCERT/CC Addendum

Vulnerability Analysis by JPCERT/CC

Analyzed on 2012.03.19

Measures Conditions Severity
Access Required can be attacked over the Internet using packets
  • High
Authentication anonymous or no authentication (IP addresses do not count)
  • High
User Interaction Required the user must be convinced to take a standard action that does not feel harmful to most users, such as click on a link or view a file
  • Mid
Exploit Complexity expertise and/or luck required (guessing correctly in medium-sized space, kernel expertise)
  • Low-Mid

Description of each analysis measures


Kazuhiko Kusano of Graduate School of Information Sciences, Tohoku University reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.

Other Information

JPCERT Reports
CERT Advisory
CPNI Advisory
CVE CVE-2012-0328
JVN iPedia JVNDB-2012-000026