JVN#82029095
sp mode mail issue in the verification of SSL certificates
Overview
sp mode mail contains an issue in the verification of the SSL server certificate.
Products Affected
- sp mode mail version 5400 and earlier
According to the developer, only sp mode mail applications for Android are affected.
Description
sp mode mail provided by NTT DOCOMO contains an issue in the verification of the SSL server certificate.
Impact
Since no warning is issued when connecting to a server that is using an invalid SSL server certificate, a remote attacker may be able to intercept communications.
Solution
Update the software
Update to the latest version according to the information provided by the developer.
Vendor Status
| Vendor | Link |
| NTT DOCOMO | sp mode mail - Android application on Google Play (Japanese only) |
References
JPCERT/CC Addendum
Vulnerability Analysis by JPCERT/CC
Analyzed on 2012.04.26
| 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 vulnerability can be exploited without an honest user taking any action |
|
| Exploit Complexity | some expertise and/or luck required (most buffer overflows, guessing correctly in small space, expertise in Windows function calls) |
|
Credit
Tsukasa Hamano of Open Source Solution Technology Corporation 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 |
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| CVE |
CVE-2012-1244 |
| JVN iPedia |
JVNDB-2012-000037 |