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Rewterz Threat Advisory – Multiple Microsoft Exchange Server Vulnerabilities

Severity

High

Analysis Summary

CVE-2023-36039 CVSS:8

Microsoft Exchange Server could allow a remote authenticated attacker to conduct spoofing attacks.

CVE-2023-36439 CVSS:8

Microsoft Exchange Server could allow a remote authenticated attacker to execute arbitrary code on the system. By sending a specially crafted request, an attacker could exploit this vulnerability to execute arbitrary code on the system with NT AUTHORITY\SYSTEM privileges.

CVE-2023-36035 CVSS:8

Microsoft Exchange Server could allow a remote authenticated attacker to conduct spoofing attacks.

CVE-2023-36050 CVSS:8

Microsoft Exchange Server could allow a remote authenticated attacker to conduct spoofing attacks.

Impact

  • Code Execution
  • Gain Access

Indicators Of Compromise

CVE

  • CVE-2023-36039
  • CVE-2023-36439
  • CVE-2023-36035
  • CVE-2023-36050

Affected Vendors

Microsoft

Affected Products

  • Microsoft Exchange Server 2016 CU23
  • Microsoft Exchange Server 2019 CU13
  • Microsoft Exchange Server 2019 CU12

Remediation

Use Microsoft Automatic Update to apply the appropriate patch for your system, or the Microsoft Security Update Guide to search for available patches.

CVE-2023-36039

CVE-2023-36439

CVE-2023-36035

CVE-2023-36050