JVN#18223913
BeZIP vulnerable to directory traversal
Overview
BeZIP contains a directory traversal vulnerability.
Products Affected
- BeZIP prior to V3.10
Description
BeZIP provided by Be Graph Co.,Ltd. is a file compression/extraction software supporting ZIP and LZH formats. BeZIP contains a directory traversal vulnerability.
Impact
An arbitrary file may be created or altered when extracting a specially crafted file.
Solution
Update the software
Update to the latest version according to the information provided by the developer.
Apply a workaround
By applying the following workaround, BeZIP will display the confirmation dialog when extracting a file with the same name.
- Disable the following option in [File]-[Options]-[Extract] tab.
- Files of same name will always overwrite.
Vendor Status
| Vendor | Status | Last Update | Vendor Notes |
|---|---|---|---|
| Be Graph Co.,Ltd. | Vulnerable | 2012/11/07 | Be Graph Co.,Ltd. website |
References
JPCERT/CC Addendum
Vulnerability Analysis by JPCERT/CC
Analyzed on 2012.11.07
| 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-2012-5171 |
| JVN iPedia |
JVNDB-2012-000101 |