CVE-2021-26858 Archives - Unit 42

A conceptual image representing espionage, such as the attempted (but unsuccessful) credential harvesting discussed here.

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攻撃者によるMicrosoft Exchange Serverの脆弱性悪用で Cortex XDRが認証情報の収集を防止

By Robert Falcone
April 15, 2021 at 6:00 AM

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2 min. read

Conceptual image symbolizing the adversarial relationship between security professionals and threat actors such as Hafnium, whose attacks involving the China Chopper webshell are discussed here

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China Chopper Webシェルを使用したMicrosoft Exchange Serverに対する攻撃の分析

By Jeff White
March 11, 2021 at 12:57 AM

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4 min. read

An image representing the concept of tutorials, such as the steps laid out here for remediating the Microsoft Exchange Server vulnerabilities

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Microsoft Exchange Serverの脆弱性の修復手順

By Unit 42
March 9, 2021 at 6:33 PM

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< 1 min. read

Conceptual image representing vulnerabilities, such as the four zero-day Microsoft Exchange Server vulnerabilities discussed in this post.

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脅威の評価: Microsoft Exchange Serverにおける4つのゼロデイ脆弱性の悪用が活発化

By Unit 42
March 3, 2021 at 8:18 PM

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2 min. read