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Citrix ADC (Netscaler ADC) Multi-Factor Bypass

By Kendall Rusco / October 26, 2020

While working with a client, VDA engineers encountered an interesting circumstance that allowed for the bypassing of Multi-factor Authentication for users who had already set this up on their accounts. This particular misconfiguration/vulnerability was possible due to the way Citrix ADC (formerly NetScaler ADC) handles user authentication. How does it work? Upon initial login attempts…

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