CVE-2019-15418

Vulnerability

The Asus ASUS_X00K_1 Android device (build fingerprint asus/CN_X00K/ASUS_X00K_1:7.0/NRD90M/CN_X00K-14.01.1711.27-20180420:user/release-keys) includes a pre-installed app with package name com.lovelyfont.defcontainer (versionCode=5, versionName=5.0.1) that is vulnerable to a confused deputy attack. This allows any other app installed on the device to leverage the app's permissions and execute arbitrary commands without proper authorization [1].

Exploitation

An attacker needs only to have any app co-located on the device (no special permissions required for the attacker's app). The attacker's app can interact with the com.lovelyfont.defcontainer app via Android inter-component communication (e.g., intents) to trigger the confused deputy condition, leading to arbitrary command execution [1].

Impact

Successful exploitation allows the attacker's app to execute arbitrary commands with the privileges of the vulnerable pre-installed app, potentially leading to full device compromise, including data exfiltration, installation of additional malware, or persistent access [1].

Mitigation

As of the publication date (2019-11-14), no official patch or mitigation has been disclosed for this vulnerability. The device may be at end-of-life or unsupported; users should consider replacing the device or using a security solution to monitor for unauthorized command execution [1].