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Android KeyStore Permission Bypass

Android KeyStore Permission Bypass
Posted Feb 6, 2018
Authored by Google Security Research, laginimaineb

The keystore binder service ("android.security.IKeystoreService") allows users to issue several commands related to key management, including adding, removing, exporting and generating cryptographic keys. The service is accessible to many SELinux contexts, including application contexts, but also unprivileged daemons such as "media.codec". A permission bypass vulnerability exists in the KeyStore service due to getpidcon.

tags | exploit, bypass
advisories | CVE-2017-13236
MD5 | 6217b7e5a6f72a1a4284d0fb186f9daf

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