Allele Security Alert
ASA-2019-00545, CVE-2019-14220, BS-2019-002
Arbitrary File Read with System admin privilege
Bluestack Systems, Inc
BlueStacks running on Windows: version 4.120 and below
BlueStacks running on MacOS: version 4.110 and below
BlueStacks version 4.130
Proof of concept
BlueStacks employs Android running in a virtual machine (VM) to enable Android apps to run on Windows or MacOS.
Bug is in a local arbitrary file read through a system service call. The impacted method runs with System admin privilege and if given the file name as parameter returns you the content of file. A malicious app using the affected method can then read the content of any system file which it is not authorized to read.
Maciej Miszczyk (Seqred.pl)
BlueStacks fails to restrict access permissions – BlueStacks Support
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Last modified: September 25, 2019