Cyber Risks · Krebs on Security

Microsoft Fixes Stuxnet Bug, Again

Summary: Microsoft's March 2015 Patch Tuesday shipped 14 update bundles covering at least 43 vulnerabilities in Internet Explorer, Exchange, Office and other components, five of them rated critical. Among them is MS15-020, which fixes the same flaw Microsoft patched in August 2010 - a patch that did not fully work, leaving Windows users exposed since; that flaw was one of four zero-days used in Stuxnet.

Bottom line: A patch Microsoft shipped in 2010 to close the Stuxnet zero-day missed the mark, and the exposure stood for roughly five years - a reminder that 'patched' and 'fixed' are not the same claim, and that verifying remediation is its own control.

Read the original at Krebs on Security ↗

Topics
Vulnerabilities & Patching
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