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 |
|
| Authentication | anonymous or no authentication (IP addresses do not count) |
|
| 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 |
|
| Exploit Complexity | some expertise and/or luck required (most buffer overflows, guessing correctly in small space, expertise in Windows function calls) |
|
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 |
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| CPNI Advisory |
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| TRnotes |
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| CVE |
CVE-2014-1975 |
| JVN iPedia |
JVNDB-2014-000031 |