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Rewterz Threat Advisory – CVE-2021-40539 – Zoho ManageEngine ADSelfService Plus REST API Vulnerability

Severity

High

Analysis Summary

CVE-2021-40539

Zoho ManageEngine ADSelfService Plus could allow a remote attacker to execute arbitrary code on the system, caused by a REST API authentication bypass. By sending a specially crafted request, an attacker could exploit this vulnerability to execute arbitrary code on the system.

Impact

Code Execution

Indicators Of Compromise

CVE

  • CVE-2021-40539

Affected Vendors

Zoho

Affected Products

  • Zoho ManageEngine ADSelfService Plus 5704
  • Zoho ManageEngine ADSelfService Plus 6003
  • Zoho ManageEngine ADSelfService Plus 6101
  • Zoho ManageEngine ADSelfService Plus 6103
  • Zoho ManageEngine ADSelfService Plus 6102
  • Zoho ManageEngine ADSelfService Plus 6113

Remediation

Upgrade to the latest version of ADSelfService Plus, available from the ManageEngine Website.

ManageEngine Website