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Posts tagged with: CVE-2021-27065

Actor Exploits Microsoft Exchange Server Vulnerabilities, Cortex XDR Blocks Harvesting of CredentialsA conceptual image representing espionage, such as the attempted (but unsuccessful) credential harvesting discussed here.
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Actor Exploits Microsoft Exchange Server Vulnerabilities, Cortex XDR Blocks Harvesting of Credentials

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

26

8 min. read

Microsoft Exchange Server Attack TimelineConceptual image representing the concept of global attackers, such as those featured in this Microsoft Exchange Server Attack timeline.
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Microsoft Exchange Server Attack Timeline

  • By Unit 42
  • March 11, 2021 at 12:10 PM

35

5 min. read

Trending

  • Threat Group Assessment: Muddled Libra (Updated) by Unit 42
  • Unit 42 Attack Surface Threat Research: Constant Change in Cloud Contributes to 45% of New High/Critical Exposures Per Month by Unit 42
  • Wireshark Tutorial: Display Filter Expressions by Brad Duncan
  • Wireshark Tutorial: Changing Your Column Display by Brad Duncan
  • Threat Group Assessment: Turla (aka Pensive Ursa) by Unit 42
Remediation Steps for the Microsoft Exchange Server VulnerabilitiesAn image representing the concept of tutorials, such as the steps laid out here for remediating the Microsoft Exchange Server vulnerabilities
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Remediation Steps for the Microsoft Exchange Server Vulnerabilities

  • By Unit 42
  • March 9, 2021 at 9:40 AM

32

4 min. read

Analyzing Attacks Against Microsoft Exchange Server With China Chopper WebshellsConceptual 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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Analyzing Attacks Against Microsoft Exchange Server With China Chopper Webshells

  • By Jeff White
  • March 8, 2021 at 2:24 PM

40

10 min. read

Threat Assessment: Active Exploitation of Four Zero-Day Vulnerabilities in Microsoft Exchange ServerConceptual image representing vulnerabilities, such as the four zero-day Microsoft Exchange Server vulnerabilities discussed in this post.
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Threat Assessment: Active Exploitation of Four Zero-Day Vulnerabilities in Microsoft Exchange Server

  • By Unit 42
  • March 3, 2021 at 3:30 PM

419

6 min. read

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