| Vulnerability Name: | CVE-2021-22881 (CCN-196804) | ||||||||||||
| Assigned: | 2021-02-10 | ||||||||||||
| Published: | 2021-02-10 | ||||||||||||
| Updated: | 2022-01-04 | ||||||||||||
| Summary: | 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 v3 Severity: | 6.1 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N) 5.3 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C)
6.4 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N/E:U/RL:O/RC:C)
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| CVSS v2 Severity: | 5.8 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:P/I:P/A:N)
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| Vulnerability Type: | CWE-601 | ||||||||||||
| Vulnerability Consequences: | Gain Access | ||||||||||||
| References: | Source: MITRE Type: CNA CVE-2021-22881 Source: MLIST Type: Mailing List, Mitigation, Third Party Advisory [oss-security] 20210505 [CVE-2021-22903] Possible Open Redirect Vulnerability in Action Pack Source: MLIST Type: Mailing List, Mitigation, Third Party Advisory [oss-security] 20210819 [CVE-2021-22942] Possible Open Redirect in Host Authorization Middleware Source: MLIST Type: Exploit, Mailing List, Patch [oss-security] 20211214 [CVE-2021-44528] Possible Open Redirect in Host Authorization Middleware Source: MISC Type: Patch, Third Party Advisory https://benjamin-bouchet.com/cve-2021-22881-faille-de-securite-dans-le-middleware-hostauthorization/ Source: CCN Type: Ruby on Rails Web site [CVE-2021-22881] Possible Open Redirect in Host Authorization Middleware Source: MISC Type: Mitigation, Patch, Vendor Advisory https://discuss.rubyonrails.org/t/cve-2021-22881-possible-open-redirect-in-host-authorization-middleware/77130 Source: XF Type: UNKNOWN rubyonrails-cve202122881-open-redirect(196804) Source: MISC Type: Exploit, Patch, Third Party Advisory https://hackerone.com/reports/1047447 Source: FEDORA Type: Mailing List, Third Party Advisory FEDORA-2021-b571fca1b8 | ||||||||||||
| Vulnerable Configuration: | Configuration 1: Configuration 2: Configuration CCN 1:  Denotes that component is vulnerable | ||||||||||||
| Oval Definitions | |||||||||||||
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