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CVE-2022-20524: Elevation of privilege in Android

High
Published: Fri Dec 16 2022 (12/16/2022, 00:00:00 UTC)
Source: CVE
Vendor/Project: n/a
Product: Android

Description

In compose of Vibrator.cpp, there is a possible arbitrary code execution due to a use after free. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-13Android ID: A-228523213

AI-Powered Analysis

AILast updated: 06/20/2025, 09:46:54 UTC

Technical Analysis

CVE-2022-20524 is a high-severity elevation of privilege vulnerability affecting Android 13, specifically within the Vibrator.cpp component of the Android operating system. The root cause is a use-after-free (CWE-416) flaw, which occurs when the system attempts to use memory after it has been freed, potentially allowing an attacker to execute arbitrary code locally. This vulnerability does not require any additional execution privileges or user interaction, meaning an attacker with limited privileges on the device can exploit this flaw to escalate their privileges to a higher level, potentially gaining full control over the affected device. The vulnerability impacts confidentiality, integrity, and availability, as an attacker could execute arbitrary code, manipulate system behavior, or cause denial of service. The CVSS v3.1 base score is 7.8, indicating a high severity level, with the vector AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H, which means the attack requires local access with low complexity, low privileges, no user interaction, and affects confidentiality, integrity, and availability to a high degree. There are no known exploits in the wild as of the published date, and no official patches were linked in the provided data, though it is likely that Google has addressed this in subsequent security updates. The vulnerability is reserved under Google Android's assigner and was first noted in October 2021, with public disclosure in December 2022. Given that Android 13 is the affected version, devices running this OS version are susceptible, particularly those that have not yet applied security updates. The vulnerability's exploitation could allow attackers to bypass Android's security model, leading to full device compromise, data theft, or persistent malware installation.

Potential Impact

For European organizations, the impact of CVE-2022-20524 can be significant, especially for those relying heavily on Android 13 devices for business operations, including mobile workforce, BYOD policies, and IoT devices running Android. Successful exploitation could lead to unauthorized access to sensitive corporate data, manipulation of device functions, or deployment of malware that could spread within corporate networks. The elevation of privilege could allow attackers to bypass security controls, access confidential communications, or disrupt device availability, impacting operational continuity. Industries such as finance, healthcare, and critical infrastructure, which often use Android devices for secure communications and operations, are at higher risk. Additionally, organizations that manage large fleets of Android devices may face increased remediation costs and operational disruptions. The lack of required user interaction and the low complexity of exploitation increase the risk of automated or stealthy attacks within corporate environments. Furthermore, the vulnerability could be leveraged in targeted attacks against high-value individuals or entities within Europe, potentially impacting national security or economic interests.

Mitigation Recommendations

To mitigate CVE-2022-20524 effectively, European organizations should: 1) Ensure all Android 13 devices are updated promptly with the latest security patches from device manufacturers or Google, as these patches typically address use-after-free vulnerabilities. 2) Implement strict device management policies that restrict installation of untrusted applications and enforce least privilege principles to limit the potential impact of local exploits. 3) Employ Mobile Threat Defense (MTD) solutions that can detect anomalous behavior indicative of privilege escalation attempts. 4) Monitor device logs and security telemetry for unusual activity related to the vibrator service or other system components. 5) For organizations using custom Android builds or embedded Android in IoT devices, conduct thorough code audits and apply vendor patches or mitigations proactively. 6) Educate users about the risks of installing unauthorized apps and encourage reporting of suspicious device behavior. 7) Consider network segmentation and endpoint detection and response (EDR) solutions that can contain compromised devices and prevent lateral movement within corporate networks. 8) Collaborate with device vendors to confirm patch availability and deployment status, especially for devices with delayed update cycles.

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Technical Details

Data Version
5.1
Assigner Short Name
google_android
Date Reserved
2021-10-14T00:00:00.000Z
Cisa Enriched
true

Threat ID: 682d984bc4522896dcbf83a2

Added to database: 5/21/2025, 9:09:31 AM

Last enriched: 6/20/2025, 9:46:54 AM

Last updated: 8/13/2025, 9:25:48 PM

Views: 13

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