Horizon Alert
Summary of the vulnerability and why it matters
The Mediatek Command Queue driver in Android contains a flaw that allows for unauthorized privilege escalation. This weakness stems from inadequate input validation and a lack of security restrictions within the driver's handlers. Exploitation of this vulnerability can lead to significant business risk by enabling attackers to gain elevated access to the system.
- Vulnerable Android driver component.
- Flaw permits privilege escalation.
- Creates elevated system access risk.
Attack Path
How an attacker could exploit the issue
The Mediatek Command Queue driver in affected Android kernel versions contains an out-of-bounds write vulnerability due to insufficient input sanitization and missing SELinux restrictions. This vulnerability can be exploited by a local attacker to gain elevated privileges on the device. Exploitation does not require user interaction.
- Local access to the device is required.
- Attacker triggers an out-of-bounds write.
- Privilege escalation is the result.
Live Threat
Current exploitation, exposure, and threat context
This vulnerability affects the Mediatek Command Queue driver within the Android kernel. It allows for local privilege escalation, meaning an attacker must already have some level of access to the device. Exploitation does not require user interaction. The vulnerability has been publicly known since early 2019 and has been actively exploited in the wild, posing a significant risk to affected organizations.
- Likely attacker skill level: Low
- Required access or conditions: Local access needed
- Business risk or urgency: High; actively exploited
Priority actions
Operational Fix
Recommended remediation, mitigation, and detection steps
This vulnerability, identified by its CVE ID, presents a risk of privilege escalation on affected devices due to insufficient input sanitization within the Mediatek Command Queue driver. Exploitation does not require user interaction and could lead to significant impact on device integrity and data confidentiality. The vendor has released updates to address this issue, and prompt action is recommended to mitigate potential business risk.
- Identify all devices running affected Android versions.
- Isolate or restrict access to vulnerable systems.
- Apply vendor security updates and validate remediation.
- Monitor for related security events.
