The Samsung Galaxy S3 and S4 phones come with a pre-loaded application that allows for spoofing and creation of arbitrary SMS content.
Sursa: Samsung Galaxy S3/S4 SMS Spoofing ≈ Packet Storm
Hi list, I would like to inform you that the details of the vulnerability in built-in system app of Samsung Galaxy S3/S4 (assigned as CVE-2013-4763 and CVE-2013-4764) are now disclosed to public. In Samsung Galaxy S3/S4, a pre-loaded app, i.e., sCloudBackupProvider.apk, is used to provide backup functionality for the users, and it unintentially exposes several unprotected components. By exploiting these unprotected components, an unprivileged app can trigger a so-called “restore” operation to write SMS messages back to the standard SMS database file (mmssms.db) used by the system messaging app, i.e., SecMms.apk. As a result, a smishing attack can effectively create and inject arbitrary (fake) SMS text messages. Similarly, fake MMS messages and call logs are also possible. This vulnerability has been disclosed in CVE-2013-4763. Also, these components can be sequentially triggered in a specific order to create arbitrary SMS content, inject to system-wide SMS database, and then trigger the built-in SMS-sending behavior (to arbitrary destination). This vulnerability has been disclosed in CVE-2013-4764. QIHU Inc. discovered these vulnerability and informed Samsung Corp. in June 10, 2013. Samsung confirmed the vulerability and is now preparing an OTA update. As a temporary workaround, disable the sCloudBackupProvider.apk app would help block known attack vectors. Details of CVE-2013-4763 and CVE-2013-4764 can be also found in QIHU Inc.'s official site: http://shouji.360.cn/securityReportlist/CVE-2013-4763.html http://shouji.360.cn/securityReportlist/CVE-2013-4764.html Regards, Z.X. from QIHU Inc.