New Snort rules protect against recently discovered Citrix vulnerability

By Edmund Brumaghin, with contributions from Dalton Schaadt.

Executive Summary

Recently, the details of a critical vulnerability affecting Citrix Application Delivery Controller and Citrix Gateway servers were publicly disclosed. This vulnerability is currently being tracked using CVE-2019-19781. A public patch has not yet been released, however, Citrix has released recommendations for steps that affected organizations can take to help mitigate the risk associated with this vulnerability. Successful exploitation of CVE-2019-19781 could allow a remote attacker to execute arbitrary code on affected systems.

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