Zachary Mathis

**Name of the Vulnerable Software and Affected Versions** Yahoo! Japan Yafuoku! application versions 4.3.0 and earlier **Description** The issue allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate, as the application does not verify X.509 certificates from SSL servers. **Recommendations** For versions 4.3.0 and earlier, update to a version that properly verifies X.509 certificates to prevent man-in-the-middle attacks.

**Name of the Vulnerable Software and Affected Versions** Yahoo! Japan Shopping application version 1.4 and earlier **Description** The issue allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate, as the application does not verify X.509 certificates from SSL servers. **Recommendations** For versions 1.4 and earlier, update to a version that properly verifies X.509 certificates to prevent man-in-the-middle attacks.