CVE-2021-32786

mediumPriorität · verfolgen · 25EPSS 0.024 · 84. PerzentilDEEURUUS
grimoire priorityP3 · Track
Exploitable?
—
no known exploitation
Likely / severe?
2.36% (84th) EPSS
CVSS 5.8 · medium
Is it mine?
43 products
Prüfe deine Angriffsfläche
Who says so?
6 sources
cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · bewertet 2026-10-27

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.

01

Behebungen

Hersteller-Fix, Mitigation oder Workaround, wie von den Quellen veröffentlicht.

Ein Hersteller-Fix ist verfügbar.

  • Behobencjose-0:0.6.1-2.module+el8+2454+f890a43a.aarch64 (mod_auth_openidc:2.3) as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2022:1823
  • Behobencjose-0:0.6.1-2.module+el8+2454+f890a43a.ppc64le (mod_auth_openidc:2.3) as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2022:1823
  • Behobencjose-0:0.6.1-2.module+el8+2454+f890a43a.s390x (mod_auth_openidc:2.3) as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2022:1823
  • Behobencjose-0:0.6.1-2.module+el8+2454+f890a43a.src (mod_auth_openidc:2.3) as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2022:1823
  • Behobencjose-0:0.6.1-2.module+el8+2454+f890a43a.x86_64 (mod_auth_openidc:2.3) as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2022:1823
  • Behobencjose-debuginfo-0:0.6.1-2.module+el8+2454+f890a43a.aarch64 (mod_auth_openidc:2.3) as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2022:1823
  • Behobencjose-debuginfo-0:0.6.1-2.module+el8+2454+f890a43a.ppc64le (mod_auth_openidc:2.3) as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2022:1823
  • Behobencjose-debuginfo-0:0.6.1-2.module+el8+2454+f890a43a.s390x (mod_auth_openidc:2.3) as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2022:1823
  • Behobencjose-debuginfo-0:0.6.1-2.module+el8+2454+f890a43a.x86_64 (mod_auth_openidc:2.3) as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2022:1823
  • Behobencjose-debugsource-0:0.6.1-2.module+el8+2454+f890a43a.aarch64 (mod_auth_openidc:2.3) as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2022:1823
  • Behobencjose-debugsource-0:0.6.1-2.module+el8+2454+f890a43a.ppc64le (mod_auth_openidc:2.3) as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2022:1823
  • Behobencjose-debugsource-0:0.6.1-2.module+el8+2454+f890a43a.s390x (mod_auth_openidc:2.3) as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2022:1823
  • Behobencjose-debugsource-0:0.6.1-2.module+el8+2454+f890a43a.x86_64 (mod_auth_openidc:2.3) as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2022:1823
  • Behobencjose-devel-0:0.6.1-2.module+el8+2454+f890a43a.aarch64 (mod_auth_openidc:2.3) as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2022:1823
  • Behobencjose-devel-0:0.6.1-2.module+el8+2454+f890a43a.ppc64le (mod_auth_openidc:2.3) as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2022:1823
  • Behobencjose-devel-0:0.6.1-2.module+el8+2454+f890a43a.s390x (mod_auth_openidc:2.3) as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2022:1823
  • Behobencjose-devel-0:0.6.1-2.module+el8+2454+f890a43a.x86_64 (mod_auth_openidc:2.3) as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2022:1823
  • Behobenmod_auth_openidc-0:2.3.7-11.module+el8.6.0+14082+b6f23e95.aarch64 (mod_auth_openidc:2.3) as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2022:1823
  • Behobenmod_auth_openidc-0:2.3.7-11.module+el8.6.0+14082+b6f23e95.ppc64le (mod_auth_openidc:2.3) as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2022:1823
  • Behobenmod_auth_openidc-0:2.3.7-11.module+el8.6.0+14082+b6f23e95.s390x (mod_auth_openidc:2.3) as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2022:1823
  • Behobenmod_auth_openidc-0:2.3.7-11.module+el8.6.0+14082+b6f23e95.src (mod_auth_openidc:2.3) as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2022:1823
  • Behobenmod_auth_openidc-0:2.3.7-11.module+el8.6.0+14082+b6f23e95.x86_64 (mod_auth_openidc:2.3) as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2022:1823
  • Behobenmod_auth_openidc-debuginfo-0:2.3.7-11.module+el8.6.0+14082+b6f23e95.aarch64 (mod_auth_openidc:2.3) as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2022:1823
  • Behobenmod_auth_openidc-debuginfo-0:2.3.7-11.module+el8.6.0+14082+b6f23e95.ppc64le (mod_auth_openidc:2.3) as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2022:1823
  • Behobenmod_auth_openidc-debuginfo-0:2.3.7-11.module+el8.6.0+14082+b6f23e95.s390x (mod_auth_openidc:2.3) as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2022:1823
  • Behobenmod_auth_openidc-debuginfo-0:2.3.7-11.module+el8.6.0+14082+b6f23e95.x86_64 (mod_auth_openidc:2.3) as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2022:1823
  • Behobenmod_auth_openidc-debugsource-0:2.3.7-11.module+el8.6.0+14082+b6f23e95.aarch64 (mod_auth_openidc:2.3) as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2022:1823
  • Behobenmod_auth_openidc-debugsource-0:2.3.7-11.module+el8.6.0+14082+b6f23e95.ppc64le (mod_auth_openidc:2.3) as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2022:1823
  • Behobenmod_auth_openidc-debugsource-0:2.3.7-11.module+el8.6.0+14082+b6f23e95.s390x (mod_auth_openidc:2.3) as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2022:1823
  • Behobenmod_auth_openidc-debugsource-0:2.3.7-11.module+el8.6.0+14082+b6f23e95.x86_64 (mod_auth_openidc:2.3) as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf

    For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

    https://access.redhat.com/errata/RHSA-2022:1823
02

cvss

Technischer Schweregrad, 0–10. Eine Zeile je Quelle.

6.1
010

Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen

v2.05.8mediumAV:N/AC:M/Au:N/C:P/I:P/A:Nprimary · NVD / NIST USAusnutzbarkeit 8.6 · Auswirkung 4.9
v3.16.1mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:Nprimary · NVD / NIST USAusnutzbarkeit 2.8 · Auswirkung 2.7
v3.06.1mediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:Nsecondary · Red Hat Product Security US
v3.15.6mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:Usecondary · CVSS-BT (t0sche)
v3.14.7mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:Nsecondary · ENISA EU
v3.16.1mediumAV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:Nsecondary · FSTEC (BDU) RU
v3.14.7mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:Nsecondary · security-advisories@github.comAusnutzbarkeit 2.8 · Auswirkung 1.4
03

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

CWE-601USprimärCWE-601USCWE-601US
04

betroffene Produkte (43)

Betroffene Produkte und Versionsbereiche.

20 von 43 angezeigt
05

Advisories (2)

Hersteller- und Ökosystem-Meldungen dazu.

  • RHSA-2022:1823Red Hat Security Advisory: mod_auth_openidc:2.3 security update2022-05-10csaf · redhat_csafUS

    An update for the mod_auth_openidc:2.3 module is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

  • WID-SEC-W-2023-0580Red Hat Enterprise Linux (mod_auth_openidc): Mehrere SchwachstellenDeutsch2022-05-10csaf · cert_bundDE

    Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Red Hat Enterprise Linux ausnutzen, um falsche Informationen darzustellen, vertrauliche Informationen offenzulegen und einen Cross-Site-Scripting Angriff durchzuführen.

06

auch bekannt als (3)

Weitere Namen und Kennungen dieser Entität.

07

quellen

Welche Quellen diesen Datensatz belegen und wann.

cnnvdenisa_euvdfstec_bducert_bundnvdredhat_csafNVDCVE.orgMITRE
veröffentlicht 2021-07-22geändert 2026-06-17
09

Referenzen (33)

Externe Belege — Patches, Meldungen, Analysen.

scry

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