The com.cutestudio.colordialer application through 2.1.8-2 for Android allows a remote attacker to initiate phone calls without user consent, because of improper export of the com.cutestudio.dialer.activities.DialerActivity component. A third-party application (without any permissions) can craft an intent targeting com.cutestudio.dialer.activities.DialerActivity via the android.intent.action.CALL action in conjunction with a tel: URI, thereby placing a phone call.

References

• https://nvd.nist.gov/vuln/detail/CVE-2023-42468
• https://github.com/actuator/com.cutestudio.colordialer/blob/main/CWE-284.md
• https://github.com/actuator/com.cutestudio.colordialer/blob/main/dial.gif
• https://github.com/actuator/com.cutestudio.colordialer/blob/main/dialerPOC.apk
• https://github.com/actuator/cve/blob/main/CVE-2023-42468