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GoogleOSV:ASB-A-223907044

HistorySep 01, 2022 - 12:00 a.m.

Obtaining dangerous platform permission with app update

2022-09-0100:00:00

Google

osv.dev

permissioncontroller

logic error

privilege escalation

user interaction

app update

CVSS2

4.4

Attack Vector

LOCAL

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:L/AC:M/Au:N/C:P/I:P/A:P

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

AI Score

7.1

Confidence

High

EPSS

0.001

Percentile

17.2%

JSON

In PermissionController, there is a possible way to get and retain permissions without user’s consent due to a logic error in the code. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is needed for exploitation.

References

android.googlesource.com/platform/packages/modules/Permission/+/8dbba56c6fe90f5559bdcfccd70594efcbba61b6

source.android.com/security/bulletin/2022-09-01

CVSS2

4.4

Attack Vector

LOCAL

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:L/AC:M/Au:N/C:P/I:P/A:P

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

AI Score

7.1

Confidence

High

EPSS

0.001

Percentile

17.2%

JSON

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