Wednesday, June 2, 2021

Increased AnyConnect attacks?

Curious if anyone has seen a ramp up in attacks against brute forcing AnyConnect logins? Since Mid-May we are seeing large scale brute force attempts out of Russia/Cyprus against Cisco ASA/FTD running AnyConnect. I know of the recent CVE about SYSTEM level access through a vulnerable client, but it requires valid credentials which may be what they are fishing for.

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Curious if anyone else has seen this behavior in their environments and if there is something big coming from Cisco. I am dreading a new zero-day that we'll frantically need to patch because Cisco finally went public after Talos saw large scale exploitation in the wild...



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