CVE-2021-32791

Published on: 07/26/2021 12:00:00 AM UTC

Last Modified on: 08/09/2021 05:59:00 PM UTC

CVE-2021-32791 - advisory for GHSA-px3c-6x7j-3r9r

Source: Mitre Source: Nist Print: PDF PDF
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Certain versions of Http Server from Apache contain the following vulnerability:

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 mod_auth_openidc before version 2.4.9, the AES GCM encryption in mod_auth_openidc uses a static IV and AAD. It is important to fix because this creates a static nonce and since aes-gcm is a stream cipher, this can lead to known cryptographic issues, since the same key is being reused. From 2.4.9 onwards this has been patched to use dynamic values through usage of cjose AES encryption routines.

  • CVE-2021-32791 has been assigned by URL Logo [email protected] to track the vulnerability - currently rated as MEDIUM severity.
  • Affected Vendor/Software: URL Logo zmartzone - mod_auth_openidc version < 2.4.9

CVSS3 Score: 5.9 - MEDIUM

Attack
Vector
Attack
Complexity
Privileges
Required
User
Interaction
NETWORK HIGH NONE NONE
Scope Confidentiality
Impact
Integrity
Impact
Availability
Impact
UNCHANGED HIGH NONE NONE

CVSS2 Score: 4.3 - MEDIUM

Access
Vector
Access
Complexity
Authentication
NETWORK MEDIUM NONE
Confidentiality
Impact
Integrity
Impact
Availability
Impact
PARTIAL NONE NONE

CVE References

Description Tags Link
use encrypted JWTs for storing encrypted cache contents · zmartzone/[email protected] · GitHub github.com
text/html
URL Logo MISC github.com/zmartzone/mod_auth_openidc/commit/375407c16c61a70b56fdbe13b0d2c8f11398e92c
[SECURITY] Fedora 33 Update: mod_auth_openidc-2.4.9-1.fc33 - package-announce - Fedora Mailing-Lists Mailing List
Third Party Advisory
lists.fedoraproject.org
text/html
URL Logo FEDORA FEDORA-2021-17f5cedf66
Hardcoded static IV and AAD with a reused key in AES GCM encryption · Advisory · zmartzone/mod_auth_openidc · GitHub github.com
text/html
URL Logo CONFIRM github.com/zmartzone/mod_auth_openidc/security/advisories/GHSA-px3c-6x7j-3r9r
Release release 2.4.9 · zmartzone/mod_auth_openidc · GitHub github.com
text/html
URL Logo MISC github.com/zmartzone/mod_auth_openidc/releases/tag/v2.4.9
[SECURITY] Fedora 34 Update: mod_auth_openidc-2.4.9-1.fc34 - package-announce - Fedora Mailing-Lists Mailing List
Third Party Advisory
lists.fedoraproject.org
text/html
URL Logo FEDORA FEDORA-2021-e3017c538a

Related QID Numbers

  • 281777 Fedora Security Update for mod_auth_openidc (FEDORA-2021-17f5cedf66)
  • 281778 Fedora Security Update for mod_auth_openidc (FEDORA-2021-e3017c538a)
  • 751134 OpenSUSE Security Update for apache2-mod_auth_openidc (openSUSE-SU-2021:3020-1)
  • 751149 OpenSUSE Security Update for apache2-mod_auth_openidc (openSUSE-SU-2021:1277-1)

Known Affected Configurations (CPE V2.3)

Type Vendor Product Version Update Edition Language
ApplicationApacheHttp ServerAllAllAllAll
Operating
System
FedoraprojectFedora33AllAllAll
Operating
System
FedoraprojectFedora34AllAllAll
ApplicationZmartzoneMod Auth OpenidcAllAllAllAll
  • cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*:
  • cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*:
  • cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*:
  • cpe:2.3:a:zmartzone:mod_auth_openidc:*:*:*:*:*:*:*:*:

Social Mentions

Source Title Posted (UTC)
Twitter Icon @CVEreport CVE-2021-32791 : mod_auth_openidc is an authentication/authorization module for the #Apache 2.x HTTP server that fu… twitter.com/i/web/status/1… 2021-07-26 17:08:28
© CVE.report 2021 Twitter Nitter Twitter Viewer |

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