Unpatched ShareIT Android App Flaw Could Let Hackers Inject Malware

Multiple unpatched vulnerabilities have been found in SHAREit, a well-known application with more than just one billion downloads, that could be abused to leak a user’s sensitive info, execute arbitrary code, and maybe guide to distant code execution.

The findings arrive from cybersecurity firm Pattern Micro’s evaluation of the Android version of the app, which makes it possible for buyers to share or transfer data files in between equipment.

But in a worrisome twist, the flaws are yet to be patched by Smart Media4U Technological know-how Pte. Ltd., the Singapore-based developer of the app, in spite of responsible disclosure 3 months in the past.

“We made the decision to disclose our exploration three months immediately after reporting this considering that a lot of customers may possibly be influenced by this assault mainly because the attacker can steal delicate details and do something with the apps’ permission,” Trend Micro researcher Echo Duan stated in a produce-up. “It is also not easily detectable.”

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1 of the flaws arises from the fashion the app facilitates sharing of files (by using Android’s FileProvider), perhaps making it possible for any third-occasion to gain non permanent read/produce access permissions and exploit them to overwrite present information in the app’s facts folder.

SHAREit android hacking

Separately, the use of deep one-way links to launch unique characteristics in the app — together with downloading break up APK (SAPK) information from a URL that has the scheme of HTTP/HTTPS and domain host that matches *.wshareit.com or gshare.cdn.shareitgames.com — can be leveraged to install a malicious app, resulting in a possible distant code execution when a user clicks on a URL.

“When the person clicks this download URL, Chrome will connect with SHAREit to download the SAPK from https://gshare.cdn.shareitgames.com,” Duan stated. “Considering the fact that it supports the HTTP protocol, this SAPK can be replaced by simulating a person-in-the-center (MitM) attack.”

Last of all, the app is also susceptible to what is actually termed a guy-in-the-disk (MitD) assault, which arises when careless use of “exterior storage” permissions opens the doorway to the installation of fraudulent applications and even will cause a denial of support ailment.

SHAREit has courted a good of protection shortcomings in the earlier. In February 2019, two vulnerabilities were being detected in the app that could permit attackers to bypass authentication, down load arbitrary information, and pilfer files from Android equipment.

SHAREit android hacking
A pop-up from the phony Twitter application produced to check the vulnerability

Then on June 29, 2020, the Indian federal government banned SHAREit alongside with 58 other Chinese apps in excess of worries that these applications have been partaking in pursuits that threatened “national safety and defence of India, which in the end impinges upon the sovereignty and integrity of India.”

We have attained out to the developers of SHAREit, and we will update the tale if we hear again.

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