Enumerating other users' contact photos via authentication item shown in AutoFillService's FillUi

2023-10-0100:00:00

Google

osv.dev

autofillservice

fillui

local information disclosure

CVSS3

3.3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

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

AI Score

6.4

Confidence

High

EPSS

Percentile

5.1%

JSON

In isFullScreen of FillUi.java, there is a possible way to view another user’s images due to a confused deputy. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.