Published:2015/02/13 Last Updated:2015/05/20
JVN#14522790
Smartphone Passbook fails to verify SSL server certificates
Overview
Smartphone Passbook provided by Ogaki Kyoritsu bank Ltd. fails to verify SSL server certificates.
Products Affected
- Smartphone Passbook Ver.1.0.0
Description
Smartphone Passbook provided by Ogaki Kyoritsu bank Ltd. fails to verify SSL server certificates.
Impact
A man-in-the-middle attack may allow an attacker to eavesdrop on an encrypted communication.
Solution
Update the Software
Update to the latest version according to the information provided by the developer.
Vendor Status
| Vendor | Link |
| Ogaki Kyoritsu bank Ltd. | Smartphone Passbook - Android Apps on Google Play |
| Smartphone Passbook - App Store |
References
JPCERT/CC Addendum
Vulnerability Analysis by JPCERT/CC
Analyzed on 2015.02.13 (CVSS Base Metrics)
| Measures | Severity | Description | ||
|---|---|---|---|---|
| Access Vector(AV) | Local (L) | Adjacent Network (A) | Network (N) | A vulnerability exploitable with network access means the vulnerable software is bound to the network stack and the attacker does not require local network access or local access. Such a vulnerability is often termed "remotely exploitable". |
| Access Complexity(AC) | High (H) | Medium (M) | Low (L) | Specialized access conditions exist. |
| Authentication(Au) | Multiple (M) | Single (S) | None (N) | Authentication is not required to exploit the vulnerability. |
| Confidentiality Impact(C) | None (N) | Partial (P) | Complete (C) | There is considerable informational disclosure. Access to some system files is possible, but the attacker does not have control over what is obtained, or the scope of the loss is constrained. |
| Integrity Impact(I) | None (N) | Partial (P) | Complete (C) | Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited. |
| Availability Impact(A) | None (N) | Partial (P) | Complete (C) | There is no impact to the availability of the system. |
Base Score:4.0
Credit
Hiroshi Kumagai 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 |
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| TRnotes |
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| CVE |
CVE-2015-0874 |
| JVN iPedia |
JVNDB-2015-000015 |
Update History
- 2015/05/20
- Information under the section "Vendor Status" was updated.