CVE-2021-44528
unknown
CVSS v3
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CVSS v4 NEW
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VIR risk
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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.
Predictions
Exploit likelihood
30%
Patch ETA
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Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 2:6.1.4.6+dfsg-1 |
| sid | Fixed | 2:6.1.4.6+dfsg-1 |
| forky | Fixed | 2:6.1.4.6+dfsg-1 |
| bullseye | Fixed | 2:6.0.3.7+dfsg-2+deb11u1 |
| bookworm | Fixed | 2:6.1.4.6+dfsg-1 |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| RubyGems | actionpack | !< 6.0.0||<~> 6.0.4, >= 6.0.4.2 | ~> 6.0.4, >= 6.0.4.2 |
| RubyGems | actionpack | >=6.0.0,<6.0.4.2 | 6.0.4.2 |
| RubyGems | actionpack | >=6.1.0,<6.1.4.2 | 6.1.4.2 |
References
- https://groups.google.com/g/ruby-security-ann/c/vG9gz3nk1pM/m/7-NU4MNrDAAJ
- https://nvd.nist.gov/vuln/detail/CVE-2021-44528
- https://github.com/rails/rails/commit/0fccfb9a3097a9c4260c791f1a40b128517e7815
- https://github.com/rails/rails/commit/aecba3c301b80e9d5a63c30ea1b287bceaf2c107
- https://github.com/rails/rails
- https://github.com/rails/rails/blob/v6.1.4.2/actionpack/CHANGELOG.md#rails-6142-december-14-2021
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/actionpack/CVE-2021-44528.yml
- https://groups.google.com/g/ruby-security-ann/c/vG9gz3nk1pM/m/7-NU4MNrDAAJ?utm_medium=email&utm_source=footer
- https://security.netapp.com/advisory/ntap-20240208-0003
- https://www.debian.org/security/2023/dsa-5372
- https://security-tracker.debian.org/tracker/CVE-2021-44528
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.