CVE-2018-16471
Description
There is a possible XSS vulnerability in Rack before 2.0.6 and 1.6.11. Carefully crafted requests can impact the data returned by the `scheme` method on `Rack::Request`. Applications that expect the scheme to be limited to 'http' or 'https' and do not escape the return value could be vulnerable to an XSS attack. Note that applications using the normal escaping mechanisms provided by Rails may not impacted, but applications that bypass the escaping mechanisms, or do not use them may be vulnerable.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2018-16471
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2018-16471.html
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| sles | affected | | |
| debian | bookworm | fixed | 1.6.4-6 |
| debian | bullseye | fixed | 1.6.4-6 |
| debian | forky | fixed | 1.6.4-6 |
| debian | sid | fixed | 1.6.4-6 |
| debian | trixie | fixed | 1.6.4-6 |
References
- https://groups.google.com/forum/#!topic/ruby-security-ann/NAalCee8n6o
- https://www.suse.com/security/cve/CVE-2018-16471.html
- https://nvd.nist.gov/vuln/detail/CVE-2018-16471
- https://github.com/rack/rack
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/rack/CVE-2018-16471.yml
- https://groups.google.com/forum/#!topic/rubyonrails-security/GKsAFT924Ag
- https://lists.debian.org/debian-lts-announce/2018/11/msg00022.html
- https://usn.ubuntu.com/4089-1
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00032.html
- http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00016.html
- https://security-tracker.debian.org/tracker/CVE-2018-16471
Verify integrity in audit chain (admin only). AS-IS.