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GoogleOSV:ASB-A-235098883

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

App can redirect a call to different user without requiring INTERACT_ACROSS_USERS permission.

2022-11-0100:00:00

Google

osv.dev

app

call redirection

vulnerability

privilege escalation

user interaction

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

6.8

Confidence

High

EPSS

0.001

Percentile

17.2%

JSON

In onCallRedirectionComplete of CallsManager.java, there is a possible permissions bypass due to a missing permission check. 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/services/Telecomm/+/9c4fc215ebb32b2c71e368ca2aca13d0f18d637d

source.android.com/security/bulletin/2022-11-01

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

6.8

Confidence

High

EPSS

0.001

Percentile

17.2%

JSON

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