[Japanese]

JVNDB-2014-000031

Unzipper vulnerable to directory traversal

Overview

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

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.
CVSS Severity (What is CVSS?)

Base Metrics: 4.3 (Medium) [IPA Score]
  • Access Vector: Network
  • Access Complexity: Medium
  • Authentication: None
  • Confidentiality Impact: None
  • Integrity Impact: Partial
  • Availability Impact: None

Affected Products


R-Company
  • Unzipper version 1.0.1 and earlier

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 Information

R-Company
CWE (What is CWE?)

  1. Path Traversal(CWE-22) [IPA Evaluation]
CVE (What is CVE?)

  1. CVE-2014-1975
References

  1. JVN : JVN#38227002
  2. National Vulnerability Database (NVD) : CVE-2014-1975
Revision History

[2014/03/17]
  Web page was published
[2014/03/19]
  References : Content was added