Beyond Clubhouse: Vulnerable Agora SDKs Still in Widespread Use

Beyond Clubhouse: Vulnerable Agora SDKs Still in Widespread Use


On February 17th, 2021, McAfee disclosed findings based on a 10-month long disclosure process with major video conferencing vendor Agora, Inc.  As we disclosed the findings to Agora in April 2020, this lengthy disclosure timeline represents a nonstandard process for McAfee but was a joint agreement with the vendor to allow sufficient time for the development and release of a secure SDK. The release of the SDK mitigating the vulnerability took place on December 17th, 2020. Given the implications of snooping and spying on video and audio calls, we felt it was important to provide Agora the extended disclosure time. The affected users of Agora include popular voice and video messaging apps, with one notable application being the popular new iOS app known as Clubhouse.

Clubhouse Application Screenshot


Clubhouse has made headlines recently as one of the newest players in the social networking sphere, rising in popularity after a series of high-profile users including Elon Musk, Kanye West and influencers in various geographies posted about the platform. Released in April of 2020, Clubhouse quickly carved out a niche in Chinese social media as the platform to discuss sensitive social and political topics – perhaps aided by its invite-only approach to membership – and the spotlight shined on it by these key players further propelled it into viral status early this year. Perhaps unsurprisingly, the application was blocked for use in China on February 8th, 2021.


Last week, Stanford Internet Observatory (SIO)
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