Advisory details:
github_osv / GHSA-qphc-hf5q-v8fc
| Advisory ID | github_osv/GHSA-qphc-hf5q-v8fc |
| Aliases |
CVE-2021-44528
|
| Summary | 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. |
| Status | Published |
| Exploitability | 0.5 |
| Weighted Severity | 5.5 |
| Risk | 2.8 |
| Affected and Fixed Packages | Package Details |
| Introduced and Fixed Package Commit Patches | Package Commit Patches Details |
| There are no known CWE. |
| System | Score | Found at |
|---|---|---|
| cvssv3.1 | 6.1 | https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/12/GHSA-qphc-hf5q-v8fc/GHSA-qphc-hf5q-v8fc.json |
| generic_textual | MODERATE |
No exploits are available.
No EPSS data available for this advisory.
| Patch URL | |
|---|---|
| There are no known patches. | |
| Attack Vector (AV) | Attack Complexity (AC) | Privileges Required (PR) | User Interaction (UI) | Scope (S) | Confidentiality Impact (C) | Integrity Impact (I) | Availability Impact (A) |
|---|---|---|---|---|---|---|---|
network adjacent_network local physical |
low high |
none low high |
none required |
unchanged changed |
high low none |
high low none |
high low none |
There are no SSVC decisions available.