← Volver a CVEs

CVE-2021-32786

MEDIUM

4.7

Descripcion

mod_auth_openidc is an authentication/authorization module for the Apache 2.x HTTP server that functions as an OpenID Connect Relying Party, authenticating users against an OpenID Connect Provider. In versions prior to 2.4.9, `oidc_validate_redirect_url()` does not parse URLs the same way as most browsers do. As a result, this function can be bypassed and leads to an Open Redirect vulnerability in the logout functionality. This bug has been fixed in version 2.4.9 by replacing any backslash of the URL to redirect with slashes to address a particular breaking change between the different specifications (RFC2396 / RFC3986 and WHATWG). As a workaround, this vulnerability can be mitigated by configuring `mod_auth_openidc` to only allow redirection whose destination matches a given regular expression.

Detalles CVE

Puntuacion CVSS v3.14.7

SeveridadMEDIUM

Vector CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N

Vector de ataqueNETWORK

ComplejidadLOW

Privilegios requeridosNONE

Interaccion usuarioREQUIRED

Publicado7/22/2021

Ultima modificacion11/21/2024

Fuentenvd

Avistamientos honeypot0

Productos afectados

apache:http_serverfedoraproject:fedoraopenidc:mod_auth_openidc

Debilidades (CWE)

CWE-601CWE-601

Referencias

https://daniel.haxx.se/blog/2017/01/30/one-url-standard-please/(security-advisories@github.com)

https://github.com/zmartzone/mod_auth_openidc/commit/3a115484eb927bc6daa5737dd84f88ff4bbc5544(security-advisories@github.com)

https://github.com/zmartzone/mod_auth_openidc/releases/tag/v2.4.9(security-advisories@github.com)

https://github.com/zmartzone/mod_auth_openidc/security/advisories/GHSA-xm4c-5wm5-jqv7(security-advisories@github.com)

https://lists.debian.org/debian-lts-announce/2023/04/msg00034.html(security-advisories@github.com)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FZVF6BSJLRQZ7PFFR4X5JSU6KUJYNOCU/(security-advisories@github.com)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QXAWKPT5LXZSUTFSJ6IWSZC7RMYYQXQD/(security-advisories@github.com)

https://security.netapp.com/advisory/ntap-20210902-0001/(security-advisories@github.com)

https://www.oracle.com/security-alerts/cpuapr2022.html(security-advisories@github.com)

https://daniel.haxx.se/blog/2017/01/30/one-url-standard-please/(af854a3a-2127-422b-91ae-364da2661108)

https://github.com/zmartzone/mod_auth_openidc/commit/3a115484eb927bc6daa5737dd84f88ff4bbc5544(af854a3a-2127-422b-91ae-364da2661108)

https://github.com/zmartzone/mod_auth_openidc/releases/tag/v2.4.9(af854a3a-2127-422b-91ae-364da2661108)

https://github.com/zmartzone/mod_auth_openidc/security/advisories/GHSA-xm4c-5wm5-jqv7(af854a3a-2127-422b-91ae-364da2661108)

https://lists.debian.org/debian-lts-announce/2023/04/msg00034.html(af854a3a-2127-422b-91ae-364da2661108)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FZVF6BSJLRQZ7PFFR4X5JSU6KUJYNOCU/(af854a3a-2127-422b-91ae-364da2661108)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QXAWKPT5LXZSUTFSJ6IWSZC7RMYYQXQD/(af854a3a-2127-422b-91ae-364da2661108)

https://security.netapp.com/advisory/ntap-20210902-0001/(af854a3a-2127-422b-91ae-364da2661108)

https://www.oracle.com/security-alerts/cpuapr2022.html(af854a3a-2127-422b-91ae-364da2661108)

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