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TWCERT/CC Taiwan Computer Emergency Response Team/Coordination Center

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Hanlin TEAMS - Authentication Loophole

TVN ID TVN-202109001
Affected Products Hanlin TEAMS < v4.2.0
Description Permission verification of the specific API function of TEAMS Cloud Academy loophole. While logging in, authenticated attackers can obtain a specific user’s permissions remotely, including accessing, modifying and deleting the relevant data processed by the user.
Solution Hanlin TEAMS v4.2.0
Credit CHANG JUI HSUAN
Public Date 2021-09-29
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