Privilege escalation in Google Android



Risk Medium
Patch available NO
Number of vulnerabilities 1
CVE-ID CVE-2020-27059
CWE-ID CWE-362
Exploitation vector Local
Public exploit N/A
Vulnerable software
 Google Android
Operating systems & Components / Operating system

Vendor Google

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Race condition

EUVDB-ID: #VU48932

Risk: Medium

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2020-27059

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Exploit availability: No

Description

The vulnerability allows a malicious application to elevate privileges on the system.

The vulnerability exists due to a race condition when processing two activities, related to fingerprint input. A malicious application installed on the device can bypass mitigations, implemented by Android and gain elevated privileges within the system.

Mitigation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

A patch will be released in the January 2021 Android Security Bulletin.

Vulnerable software versions

Google Android: 9.0 - 10

CPE2.3 External links

https://www.darkreading.com/threat-intelligence/fingerprint-jacking-attack-technique-manipulates-android-ui-/d/d-id/1339684


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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