Vulnerability CVE-2020-27030

Vulnerability Name:

CVE-2020-27030 (CCN-193186)

Assigned:

2020-12-10

Published:

2020-12-10

Updated:

2021-07-21

Summary:

In onCreate of HandleApiCalls.java, there is a possible permission bypass due to a confused deputy. This could lead to local escalation of privilege that allows an app to set or dismiss the alarm with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11Android ID: A-150612638

CVSS v3 Severity:

7.8 High (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
6.8 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Local Attack Complexity (AC): Low Privileges Required (PR): Low User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): High Integrity (I): High Availibility (A): High

8.4 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
7.3 High (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Local Attack Complexity (AC): Low Privileges Required (PR): None User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): High Integrity (I): High Availibility (A): High

CVSS v2 Severity:

4.6 Medium (CVSS v2 Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P)

Exploitability Metrics:	Access Vector (AV): Local Access Complexity (AC): Low Authentication (Au): None
Impact Metrics:	Confidentiality (C): Partial Integrity (I): Partial Availibility (A): Partial

7.2 High (CCN CVSS v2 Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C)

Exploitability Metrics:	Access Vector (AV): Local Access Complexity (AC): Low Athentication (Au): None
Impact Metrics:	Confidentiality (C): Complete Integrity (I): Complete Availibility (A): Complete

Vulnerability Type:

CWE-269

Vulnerability Consequences:

Gain Privileges

References:

Source: CCN
Type: Google Web site
Android

Source: MITRE
Type: CNA
CVE-2020-27030

Source: XF
Type: UNKNOWN
android-cve202027030-priv-esc(193186)

Source: CCN
Type: Android Open Source Project
Pixel Update Bulletin - December 2020

Source: MISC
Type: Vendor Advisory
https://source.android.com/security/bulletin/pixel/2020-12-01

Vulnerable Configuration:

Configuration 1:

cpe:/o:google:android:11.0:*:*:*:*:*:*:*

Configuration CCN 1:

cpe:/o:google:android:-:*:*:*:*:*:*:*

Denotes that component is vulnerable

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