JVN#48270605
Yahoo! Japan Box for Android issue where it fails to verify SSL server certificates
Overview
Yahoo! Japan Box for Android provided by Yahoo Japan Corporation contains an issue where it fails to verify SSL server certificates.
Products Affected
- Yahoo! Japan Box for Android ver 1.5.4 and earlier
Description
Yahoo! Japan Box for Android provided by Yahoo Japan Corporation contains an issue where it 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 |
| Yahoo Japan Corporation | Yahoo! Japan Box for Android |
References
-
CERT Vulnerability Note VU#582497
Multiple Android applications fail to properly validate SSL certificates -
Japan Vulnerabilitiy Notes JVNVU#90369988
Multiple Android applications fail to properly validate SSL certificates (Japanese)
JPCERT/CC Addendum
Vulnerability Analysis by JPCERT/CC
Analyzed on 2014.09.25 (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
Yahoo Japan Corporation reported this vulnerability to JPCERT/CC to notify users of this issue through JVN.
JPCERT/CC coordinated with Yahoo Japan Corporation to publish this JVN advisory under the 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-2014-5881 |
| JVN iPedia |
JVNDB-2014-000116 |