CVE-2021-44528 – actionpack

Package

Manager: gem
Name: actionpack
Vulnerable Version: >=6.0.0 <6.0.4.2 || >=6.1.0 <6.1.4.2

Severity

Level: Medium

CVSS v3.1: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

EPSS: 0.26792 pctl0.96174

Details

actionpack Open Redirect in Host Authorization Middleware Specially crafted "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. Impacted applications will have allowed hosts with a leading dot. For example, configuration files that look like this: ``` config.hosts << '.EXAMPLE.com' ``` When an allowed host contains a leading dot, a specially crafted Host header can be used to redirect to a malicious website. This vulnerability is similar to CVE-2021-22881 and CVE-2021-22942. Releases -------- The fixed releases are available at the normal locations. Patches ------- To aid users who aren't able to upgrade immediately we have provided patches for the two supported release series. They are in git-am format and consist of a single changeset. * 6-0-host-authorzation-open-redirect.patch - Patch for 6.0 series * 6-1-host-authorzation-open-redirect.patch - Patch for 6.1 series * 7-0-host-authorzation-open-redirect.patch - Patch for 7.0 series Please note that only the 6.1.Z, 6.0.Z, and 5.2.Z series are supported at present. Users of earlier unsupported releases are advised to upgrade as soon as possible as we cannot guarantee the continued availability of security fixes for unsupported releases.

Metadata

Created: 2021-12-14T21:19:08Z
Modified: 2024-02-08T12:30:47Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/12/GHSA-qphc-hf5q-v8fc/GHSA-qphc-hf5q-v8fc.json
CWE IDs: ["CWE-601"]
Alternative ID: GHSA-qphc-hf5q-v8fc
Finding: F156
Auto approve: 1