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CVE-2021-32786

MEDIUM

4.7

Descricao

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.

Detalhes CVE

Pontuacao CVSS v3.14.7

SeveridadeMEDIUM

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

Vetor de ataqueNETWORK

ComplexidadeLOW

Privilegios necessariosNONE

Interacao do usuarioREQUIRED

Publicado7/22/2021

Ultima modificacao11/21/2024

Fontenvd

Avistamentos honeypot0

Produtos afetados

apache:http_serverfedoraproject:fedoraopenidc:mod_auth_openidc

Fraquezas (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)

Correlacoes IOC

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