Popular Android Apps Like Xiaomi, WPS Office Vulnerable to File Overwrite Flaw

A recent report by researchers at Check Point Research has revealed a vulnerability in several popular Android applications that could potentially allow threat actors to overwrite files on the targeted devices.

The security flaw, identified as CVE-2022-24348, affects a wide range of apps, including but not limited to Xiaomi, WPS Office, and a handful of other well-known software. The vulnerability stems from the way these apps handle the access control mechanism, which could be exploited by malicious actors to manipulate and overwrite sensitive files on the device.

Understanding the Vulnerability

The CVE-2022-24348 vulnerability, also referred to as the file overwrite flaw, pertains to the lack of proper validation checks within the affected Android applications. This allows an attacker to gain unauthorized access to the device's file system and overwrite critical files, potentially leading to further exploitation and compromise of the device.

Check Point Research's investigation into the matter revealed that the vulnerability could be exploited through a specially crafted application that tricks the user into granting unnecessary permissions. Once the malicious app gains access to the device, it can then proceed to exploit the file overwrite flaw to manipulate and overwrite files without the user's knowledge or consent.

Impacted Applications

The vulnerability has been identified in a range of widely used Android applications, with Xiaomi and WPS Office being the most notable among them. These apps are popular among Android users and are widely used for various purposes, including document editing, file management, and device customization.

The impact of the CVE-2022-24348 vulnerability extends beyond just these two apps, as Check Point Research identified several other applications that are potentially at risk. While the exact list of affected apps has not been publicly disclosed, it is evident that the vulnerability poses a significant threat to the security and integrity of Android devices.

Potential Risks and Consequences

The file overwrite flaw in popular Android apps like Xiaomi and WPS Office poses a range of potential risks and consequences for users. If exploited by threat actors, the vulnerability could lead to various security and privacy threats, including but not limited to:

  1. Data Loss and Corruption: By manipulating critical system files, threat actors could cause data loss and corruption on the targeted devices, potentially rendering them inoperable.

  2. Privacy Breach: Overwriting sensitive files could lead to the exposure of personal and confidential information stored on the device, putting users' privacy at risk.

  3. Device Compromise: Once the initial breach occurs, threat actors could use the file overwrite flaw to further compromise the device, potentially installing additional malware or spyware.

  4. Escalation of Privileges: Exploiting the vulnerability could allow threat actors to gain escalated privileges on the device, giving them greater control and access to sensitive resources.

In addition to the immediate risks, the exploitation of the file overwrite flaw in popular Android apps could also have broader implications for the overall security of the Android ecosystem. It could erode user trust and confidence in the platform, potentially leading to a decreased adoption of Android devices and applications.

Mitigation and Remediation

In response to the CVE-2022-24348 vulnerability, the affected app developers should act swiftly to address the issue and release patches to secure their applications. It is crucial for users to update their apps to the latest versions as soon as patches become available to ensure that they are protected from potential exploitation of the vulnerability.

As a best practice, Android users should also exercise caution when installing and granting permissions to third-party applications. They should only download apps from trusted sources, such as the Google Play Store, and carefully review the permissions requested by each app to minimize the risk of unauthorized access to sensitive data.

From a broader perspective, mobile app developers and platform providers should prioritize security and implement robust access control mechanisms within their applications. This includes conducting thorough security reviews and testing to identify and address potential vulnerabilities before they can be exploited by threat actors.


The discovery of the CVE-2022-24348 vulnerability in popular Android apps like Xiaomi and WPS Office underscores the ongoing challenges and risks associated with mobile app security. As the reliance on mobile devices continues to grow, the need for robust security measures and proactive risk mitigation strategies becomes increasingly critical.

The response to such vulnerabilities requires collaborative efforts from app developers, security researchers, and platform providers to ensure the timely identification and remediation of security flaws. By addressing these issues proactively and implementing effective security controls, the industry can work towards enhancing the overall security of the Android ecosystem and safeguarding users against potential threats and exploitation.

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