What is CVE-2021-43974?

CVE-2021-43974 is a medium-severity vulnerability in Sysaid Itil, classified under Missing Authentication for Critical Function. CVSS score: 5.3/10. Published 2022-01-11.

How severe is CVE-2021-43974?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Is CVE-2021-43974 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Auth bypass in Sysaid Itil

CVE-2021-43974

An issue was discovered in SysAid ITIL 20.4.74 b10. The /enduserreg endpoint is used to register end users anonymously, but does not respect the server-side setting that determines if anonymous users are allowed to register new accounts. Configuring the server-side setting to disable anonymous user registration only hides the client-side registration form. An attacker can still post registration data to create new accounts without prior authentication.

Vulnerability class: Broken Authentication

EPSS: 0.014 (70.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

Affected products

Sysaid Itil — versions 20.4.74
N/a — versions n/a

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

Public proof-of-concept exploits

References

cve@mitre.org (x_refsource_MISC, Vendor Advisory)
cve@mitre.org (Third Party Advisory, x_refsource_MISC, Broken Link)
cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-43974?: CVE-2021-43974 is a medium-severity vulnerability in Sysaid Itil, classified under Missing Authentication for Critical Function. CVSS score: 5.3/10. Published 2022-01-11.
How severe is CVE-2021-43974?: Medium severity. CVSS v3 base score is 5.3 out of 10.
Is CVE-2021-43974 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.