Is CVE-2021-44528 in the CISA KEV catalog?

No. CVE-2021-44528 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-44528?

CVE-2021-44528 has a CVSS v3 base score of 6.1 (MEDIUM).

What is the EPSS score for CVE-2021-44528?

CVE-2021-44528 has an EPSS score of 4.18% (90th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-44528?

Upgrade rails on debian 11 to 2:6.0.3.7+dfsg-2+deb11u1 or later.

CVE & CISA-KEV Catalog

CVE-2021-44528

MEDIUMEPSS 90th pctl

6.1

CVSS v3

NVD

Description

A open redirect vulnerability exists in Action Pack >= 6.0.0 that could allow an attacker to craft a "X-Forwarded-Host" headers in combination with certain "allowed host" formats can cause the Host Authorization middleware in Action Pack to redirect users to a malicious website.

CWE-601Open Redirect

How to fix

Remediation Available

railsDebian

Fixed in:2:6.0.3.7+dfsg-2+deb11u1CVE-2021-44528

Fixed in:2:6.1.4.6+dfsg-1CVE-2021-44528

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 ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeChanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityNone

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

Exploit Intelligence

4.18%probability of exploitation in 30 days

90thpercentile

Elevated risk: more likely to be exploited than 90% of all known CVEs.

References

Patch1

github.com

Other references2

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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.