CVE-2021-22881

· MEDIUMModified

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CVSS v3.1

6.1

EPSS

87.30%

Published

Feb 11, 2021

Modified

Nov 21, 2024

Public PoC / Exploit (2)

All weaponized →

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Links to public security research (Exploit-DB, Nuclei, Trickest, GitHub) for defensive use only.

Description

The Host Authorization middleware in Action Pack before 6.1.2.1, 6.0.3.5 suffers from an open redirect vulnerability. Specially crafted `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. Impacted applications will have allowed hosts with a leading dot. When an allowed host contains a leading dot, a specially crafted `Host` header can be used to redirect to a malicious website.

CVSS Vector

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

Weaknesses (CWE)

CWE-601CWE-601

Affected Products (3)

rubyonrails · rails (up to 6.0.3.5)vulnerable

rubyonrails · rails (up to 6.1.2.1)vulnerable

fedoraproject · fedoravulnerable

References (14)

http://www.openwall.com/lists/oss-security/2021/05/05/2

Mailing ListMitigationThird Party Advisory

http://www.openwall.com/lists/oss-security/2021/08/20/1