What is CVE-2021-44077?

CVE-2021-44077 is a critical-severity vulnerability in Zohocorp Manageengine_servicedesk_plus, classified under Missing Authentication for Critical Function. CVSS score: 9.8/10. Published 2021-11-29.

How severe is CVE-2021-44077?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2021-44077 known to be exploited?

Yes. CVE-2021-44077 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2021-12-01), indicating it is being actively exploited. 20 public proof-of-concept repositories are indexed.

Auth bypass in Zohocorp Manageengine_servicedesk_plus

CVE-2021-44077

Zoho ManageEngine ServiceDesk Plus before 11306, ServiceDesk Plus MSP before 10530, and SupportCenter Plus before 11014 are vulnerable to unauthenticated remote code execution. This is related to /RestAPI URLs in a servlet, and ImportTechn…

Vulnerability class: Broken Authentication

EPSS: 0.935 (99.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Zohocorp Manageengine_servicedesk_plus — versions 11.1, 11.2, 11.3
Zohocorp Manageengine_servicedesk_plus_msp — versions 10.5
Zohocorp Manageengine_supportcenter_plus — versions 11.0
N/a — versions n/a

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on 2021-12-01. CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: 2021-12-15.

Required action: Apply updates per vendor instructions.

Public proof-of-concept exploits

References

cve@mitre.org (x_refsource_MISC, Vendor Advisory)
cve@mitre.org (Patch, x_refsource_MISC, Vendor Advisory)
cve@mitre.org (x_refsource_MISC, Vendor Advisory)
cve@mitre.org (x_refsource_MISC, Vendor Advisory)
cve@mitre.org (Exploit, VDB Entry, Third Party Advisory, x_refsource_MISC)
134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)

Frequently asked questions

What is CVE-2021-44077?: CVE-2021-44077 is a critical-severity vulnerability in Zohocorp Manageengine_servicedesk_plus, classified under Missing Authentication for Critical Function. CVSS score: 9.8/10. Published 2021-11-29.
How severe is CVE-2021-44077?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2021-44077 known to be exploited?: Yes. CVE-2021-44077 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2021-12-01), indicating it is being actively exploited. 20 public proof-of-concept repositories are indexed.