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Android Calling Getpidcon Gets Wrong Security Context

Android Calling Getpidcon Gets Wrong Security Context
Posted Feb 23, 2016
Authored by Google Security Research, forshaw

The servicemanager, keystore and drmserver all use getpidcon function to get the security context of the caller from a binder. When combined with a one way binder transaction this results in getting the security context of the current process which might allow a selinux mac bypass.

tags | advisory
systems | linux
SHA-256 | 2490431986cf0e3ac461ee3404bc3e4c47f1124ec963ad8e900b6344954fe156
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