Microsoft finds bug in TikTok app before hackers attack

Microsoft 365 Defender Research Team has discovered vulnerability in the TikTok app for Android that can let hackers take over private, short-form videos of millions of users once they clicked on a malicious link.
TikTok mobile appMicrosoft discovered the high-severity vulnerability in the TikTok Android application, which could have allowed attackers to compromise users’ accounts with a single click.

The Chinese company already fixed the vulnerability, which would have required several issues to be chained together to exploit.

Attackers could have leveraged the vulnerability to hijack an account without users’ awareness if a targeted user simply clicked a specially crafted link, Microsoft said in a statement on Wednesday.

Attackers could have then accessed and modified users’ TikTok profiles and sensitive information, such as by publicising private videos, sending messages, and uploading videos on behalf of users.

TikTok has two versions of its Android app: one for East and Southeast Asia and another for the remaining countries.

Performing a vulnerability assessment of TikTok, the Microsoft team determined that the issues were affecting both versions of the app for Android, which have over 1.5 billion installations combined via the Google Play Store.

After reviewing the implications, a Microsoft security researcher notified TikTok of the issues.

TikTok responded by releasing a fix to address the reported vulnerability, identified as CVE-2022-28799, and users can refer to the CVE entry for more information, Microsoft said. TikTok users are encouraged to ensure they’re using the latest version of the app.