Is CVE-2021-21329 in the CISA KEV catalog?

No. CVE-2021-21329 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-21329?

CVE-2021-21329 has a CVSS v3 base score of 8.7 (HIGH).

What is the EPSS score for CVE-2021-21329?

CVE-2021-21329 has an EPSS score of 1.46% (70th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-21329?

Upgrade ratcf to 2021-02-26 or later.

CVE & CISA-KEV Catalog

CVE-2021-21329

HIGHEPSS 70th pctl

8.7

CVSS v3

NVD

Description

RATCF is an open-source framework for hosting Cyber-Security Capture the Flag events. In affected versions of RATCF users with multi factor authentication enabled are able to log in without a valid token. This is fixed in commit cebb67b.

CWE-287Improper Authentication

How to fix

Remediation Available

ratcfNVD

Affected:< 2021-02-26Fixed in:2021-02-26CVE-2021-21329derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeChanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityNone

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N

Exploit Intelligence

1.46%probability of exploitation in 30 days

70thpercentile

Elevated risk: more likely to be exploited than 70% of all known CVEs.

References

Patch3

Related Vulnerabilities

Other CWE-287 (Improper Authentication) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-35082	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2023-35078	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2017-7921	Critical	9.8	100%	KEV	-
CVE-2024-7593	Critical	9.8	100%	KEV	-
CVE-2023-46805	High	8.2	100%	KEV + Ransom	-
CVE-2022-40684	Critical	9.8	100%	KEV + Ransom	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.