#VU56414 Improper access control in Zoho ManageEngine ADSelfService Plus - CVE-2021-40539

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Main Vulnerability Database Vulnerabilities #VU56414

#VU56414 Improper access control in Zoho ManageEngine ADSelfService Plus - CVE-2021-40539

Published: September 9, 2021 / Updated: November 24, 2021


Vulnerability identifier: #VU56414
Vulnerability risk: Critical
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Red
CVE-ID: CVE-2021-40539
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability: The vulnerability is being exploited in the wild
Vulnerable software:
Zoho ManageEngine ADSelfService Plus
Software vendor:
Zoho Corporation

Description

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to improper access restrictions to the "/RestAPI/LogonCustomization" and "/RestAPI/Connection" REST API endpoints. A remote non-authenticated attacker can send specially HTTP requests to the aforementioned REST API endpoints and execute arbitrary code on the system.

Note, the vulnerability is being actively exploited in the wild.


Remediation

Install updates from vendor's website.

External links