Improper control of interaction frequency in Zoho ManageEngine ADSelfService Plus - CVE-2021-37417

Vulnerability identifier: #VU56256

CSH Severity: Low

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

CVE-ID: CVE-2021-37417

CWE-ID: CWE-799

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vendor: Zoho Corporation

Affected software:
Zoho ManageEngine ADSelfService Plus

The vulnerability allows a remote attacker to bypass CAPTCHA.

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can bypass CAPTCHA protection on the login page and perform brute-force attacks.

Install updates from vendor's website.

• https://blog.stmcyber.com/vulns/cve-2021-37417/
• https://pitstop.manageengine.com/portal/en/community/topic/adselfservice-plus-6104-released-with-an-important-security-fixes