CVE-2023-47106

Name
CVE-2023-47106
Description
Traefik is an open source HTTP reverse proxy and load balancer. When a request is sent to Traefik with a URL fragment, Traefik automatically URL encodes and forwards the fragment to the backend server. This violates RFC 7230 because in the origin-form the URL should only contain the absolute path and the query. When this is combined with another frontend proxy like Nginx, it can be used to bypass frontend proxy URI-based access control restrictions. This vulnerability has been addressed in versions 2.10.6 and 3.0.0-beta5. Users are advised to upgrade. There are no known workarounds for this vulnerability.
NVD Severity
unknown
Other trackers
CVE, NVD, CERT, CVE Details, CIRCL, Arch Linux, Debian, Red Hat, Ubuntu, Gentoo, SUSE (Bugzilla), SUSE (CVE), Mageia
Mailing lists
oss-security, full-disclosure, bugtraq
Exploits
Exploit DB, Metasploit
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
security-advisories@github.com https://datatracker.ietf.org/doc/html/rfc7230#section-5.3.1
security-advisories@github.com https://github.com/traefik/traefik/releases/tag/v2.10.6
security-advisories@github.com https://github.com/traefik/traefik/releases/tag/v3.0.0-beta5
security-advisories@github.com https://github.com/traefik/traefik/security/advisories/GHSA-fvhj-4qfh-q2hm

Match rules

CPE URI Source package Min version Max version
cpe:2.3:a:traefik:traefik:*:*:*:*:*:*:*:* traefik >= None <= 2.10.5
cpe:2.3:a:traefik:traefik:3.0.0:beta1:*:*:*:*:*:* traefik == None == 3.0.0

Vulnerable and fixed packages

Source package Branch Version Maintainer Status
traefik 3.18-community 2.10.4-r4 Francesco Colista <fcolista@alpinelinux.org> possibly vulnerable
traefik 3.20-community 3.0.0-r3 Francesco Colista <fcolista@alpinelinux.org> possibly vulnerable