CISA Orders Agencies to Recheck for Exchange Compromises Twitter Get Permission
The Cybersecurity and Infrastructure Security Agency is ordering federal executive branch agencies to rescan and recheck their networks by Monday for any signs of compromise related to unpatched vulnerabilities in on-premises Microsoft Exchange email servers.
In addition, the agencies have until June 28 to implement CISA s recommended steps to harden their infrastructure against attacks.
Exchange Server Flaws
Microsoft patched the four vulnerabilities in the on-premises version of Exchange Server on March 2. Around that time, RiskIQ estimated that about 400,000 on-premises Exchange servers were vulnerable. Microsoft reported that as of March 26, more than 92%, or around 368,000, had been patched or mitigated (see:
CISA Orders Agencies to Recheck for Exchange Compromises
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