Published:2014/03/17  Last Updated:2014/03/17

JVN#38227002
Unzipper vulnerable to directory traversal

Overview

Unzipper provided by R-Company contains a directory traversal vulnerability.

Products Affected

  • Unzipper version 1.0.1 and earlier

Description

Unzipper provided by R-Company contains an issue in processing file names, which may result in a directory traversal (CWE-22) vulnerability.

Impact

A remote, unauthenticated attacker may create an arbitrary file or overwrite an existing file in a directory that the application has privileges to access.

Solution

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

Vendor Status

Vendor Status Last Update Vendor Notes
R-Company Vulnerable 2014/03/17 R-Company website

References

JPCERT/CC Addendum

Vulnerability Analysis by JPCERT/CC

Analyzed on 2014.03.17

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 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

Ryohei Koike of Sakura Information Systems Co., Ltd. reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.

Other Information

JPCERT Alert
JPCERT Reports
CERT Advisory
CPNI Advisory
TRnotes
CVE CVE-2014-1975
JVN iPedia JVNDB-2014-000031