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CVE-2021-44528

MEDIUMCVSS 6.1/10EPSS 4.18%

Last modified

CVE-2021-44528 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. 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.. EPSS estimates a 4.18% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
6.1/10

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

EPSS Probability
4.18%

89.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersionsUpdate
RubyonrailsRails6.0.4.2—
RubyonrailsRails6.1.4.2—
RubyonrailsRails7.0.0Rc2

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2021-44528?
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.
How severe is CVE-2021-44528?
CVE-2021-44528 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 4.18% probability of exploitation in the next 30 days.
How do I fix CVE-2021-44528?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-44528?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST