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GoogleOSV:ASB-A-238298970

HistoryApr 01, 2023 - 12:00 a.m.

Bypass patch of 209446496: Secondary user could disable secure nfc

2023-04-0100:00:00

Google

osv.dev

patch bypass

secondary user

nfc enablement

permissions bypass

escalation of privilege

user interaction

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

0.0004 Low

EPSS

Percentile

5.1%

JSON

In isToggleable of SecureNfcEnabler.java and SecureNfcPreferenceController.java, there is a possible way to enable NFC from a secondary account due to a permissions bypass. This could lead to local escalation of privilege from the Guest account with no additional execution privileges needed. User interaction is not needed for exploitation.

CPENameOperatorVersion
platform/packages/apps/settingseq12
platform/packages/apps/settingseq11
platform/packages/apps/settingseq12L
platform/packages/apps/settingseq13

Name	Operator	Version
platform/packages/apps/settings	eq	12
platform/packages/apps/settings	eq	11
platform/packages/apps/settings	eq	12L
platform/packages/apps/settings	eq	13

References

android.googlesource.com/platform/packages/apps/Settings/+/78b42aeb37c04c0da0fe07f46c2558f15a7efc6b

source.android.com/security/bulletin/2023-04-01

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

0.0004 Low

EPSS

Percentile

5.1%

JSON

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