In createPendingIntent of CredentialManagerUi.java, there is a possible way to access credentials from other users due to a permissions bypass. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.
During installation, installed file permissions are set to allow anyone to modify those files.
Link | Tags |
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https://android.googlesource.com/platform/frameworks/base/+/9b68987df85b681f9362a3cadca6496796d23bbc | patch mailing list |
https://source.android.com/security/bulletin/2023-12-01 | patch vendor advisory |