Privilege escalation in Apple macOS
CVE-2019-14220
An issue was discovered in BlueStacks 4.110 and below on macOS and on 4.120 and below on Windows. 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
Vulnerability class: Privilege Escalation
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.009 (58.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 58th percentile — 58.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- support.bluestacks.com/hc/en-us/articles/360021469391-Release-Notes (Release Notes, Vendor Advisory)
- support.bluestacks.com/hc/en-us/articles/360033484132-BlueStacks-fails-to-restr… (Patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2019-14220?
- CVE-2019-14220 is a medium-severity vulnerability in Apple macOS, classified under Improper Privilege Management. CVSS score: 6.5/10. Published 2019-09-24.
- How severe is CVE-2019-14220?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2019-14220 known to be exploited?
- 5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.