Moderate
CVE-2019-2215
CVE ID
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CVE-2019-2215
MITRE ATT&CK
Collection
Command and Control
Credential Access
Defense Evasion
Discovery
Execution
Exfiltration
Impact
Initial Access
Lateral Movement
Persistence
Privilege Escalation
Topic Tags
Description
A use-after-free in binder.c allows an elevation of privilege from an application to the Linux Kernel. No user interaction is required to exploit this vulnerability, however exploitation does require either the installation of a malicious local application or a separate vulnerability in a network facing application.Product: AndroidAndroid ID: A-141720095
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Ratings
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Attacker ValueMedium
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ExploitabilityVery Low
Technical Analysis
There is a working proof of concept available for some devices.
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Attacker ValueLow
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ExploitabilityLow
Technical Analysis
As a privilege escalation does still need an initial vector onto the phone, so requires either another exploit or additional tradecraft. This is unlikely to work in conjunction with a Chrome exploit today because many phones run a 64-bit kernel + 32-bit Chrome, perhaps for this very reason!.
After testing the Metasploit module it took a considerable amount of specific targeting effort to get just the right model, and because the phone has a feature/bug that made it difficult to downgrade firmware (and the phone likes to upgrade on its own very easily), targeting this after disclosure may be very difficult.
However, if you can find this bug or a similar one on a common phone that is past applying security updates, it could be useful for privesc from a malicious app. But I think the issue that plagues a lot of Android binary exploitation vulns is the lack of generality and there being lower-hanging fruit.
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Reported as exploited in the wild as part of Google’s 2020 0day vulnerability spreadsheet they made available at https://docs.google.com/spreadsheets/d/1lkNJ0uQwbeC1ZTRrxdtuPLCIl7mlUreoKfSIgajnSyY/edit#gid=1869060786. Original tweet announcing this spreadsheet with the 2020 findings can be found at https://twitter.com/maddiestone/status/1329837665378725888
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Technical Analysis
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CVE ID
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