JVN#51285738
tetra filer vulnerable to directory traversal
Overview
tetra filer provided by Yuichiro Okuyama contains a directory traversal vulnerability.
Products Affected
For Android OS version 4.0.3 and later:
- tetra filer version 2.3.1 and earlier
- tetra filer free version 2.3.1 and earlier
- tetra filer version 1.5.1 and earlier
- tetra filer free version 1.5.1 and earlier
Description
tetra filer provided by Yuichiro Okuyama 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 | Link |
| Yuichiro Okuyama | tetra filer - Android Apps on Google Play |
| tetra filer free - Android Apps on Google Play |
References
JPCERT/CC Addendum
Vulnerability Analysis by JPCERT/CC
Analyzed on 2014.01.10
| 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 |
|
| CPNI Advisory |
|
| TRnotes |
|
| CVE |
CVE-2014-0803 |
| JVN iPedia |
JVNDB-2014-000002 |
Update History
- 2014/01/10
- Information under the section "Impact" was updated.