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GoogleOSV:ASB-A-294228721

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

Disallowed credential managers are not disabled in settings

2023-12-0100:00:00

Google

osv.dev

disallowed credential managers

settings

getcredentialmanagerpolicy

devicepolicymanagerservice

local escalation

privilege

user interaction

exploitation

vulnerability

software

CVSS3

7.8

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

AI Score

7.1

Confidence

High

EPSS

Percentile

5.1%

JSON

In getCredentialManagerPolicy of DevicePolicyManagerService.java, there is a possible method for users to select credential managers without permission due to a missing permission check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

References

android.googlesource.com/platform/frameworks/base/+/e2e05f488da6abc765a62e7faf10cb74e729732e

source.android.com/security/bulletin/2023-12-01

CVSS3

7.8

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

AI Score

7.1

Confidence

High

EPSS

Percentile

5.1%

JSON

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