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Microsoft patches zero-day vulnerabilities in IE and Exchange

The Microsoft logo displayed at Microsoft's booth at a trade show.

Getty Pictures | Justin Sullivan

Microsoft’s Patch Tuesday this month had higher-than-usual stakes with fixes for a zero-day Web Explorer vulnerability below energetic exploit and an Trade Server flaw that was once disclosed remaining month with proof-of-concept code.

The IE vulnerability, Microsoft stated, lets in attackers to check whether or not a number of recordsdata are saved on disks of prone PCs. Attackers first will have to entice objectives to a malicious web page. Microsoft, with out elaborating, stated it has detected energetic exploits in opposition to the vulnerability, which is listed as CVE-2019-0676 and impacts IE model 10 or 11 working on all supported variations of Home windows. The flaw was once came upon via participants of Google’s Challenge 0 vulnerability analysis workforce.

Microsoft additionally patched Trade in opposition to a vulnerability that allowed faraway attackers with little greater than an unprivileged mailbox account to realize administrative keep watch over over the server. Dubbed PrivExchange, CVE-2019-0686 was once publicly disclosed remaining month, together with proof-of-concept code that exploited it. In Tuesday’s advisory, Microsoft officers stated they haven’t observed energetic exploits but, however that they had been “most likely.”

Lest readers are tempted to assume Microsoft is the one main tool maker whose merchandise had been actively exploited in fresh weeks, Apple remaining week patched 3 iOS vulnerabilities that researchers said were being exploited as zero days in the wild. Two of those zero-days had been came upon via Challenge 0. Apple declined to remark.

In all, Microsoft patched greater than 70 vulnerabilities, 20 of which have been rated vital. Prone merchandise incorporated IE, Edge, Home windows, Workplace, the .NET Framework, Trade Server, Visible Studio, the Azure IoT SDK, Microsoft Dynamics, Staff Basis Server, and Visible Studio Code. Microsoft has an summary right here.

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