CVE-2021-32791 Information
Share on:Description
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.
CVSS Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Reference
https://github.com/zmartzone/mod_auth_openidc/security/advisories/GHSA-px3c-6x7j-3r9r https://github.com/zmartzone/mod_auth_openidc/commit/375407c16c61a70b56fdbe13b0d2c8f11398e92c https://github.com/zmartzone/mod_auth_openidc/releases/tag/v2.4.9 https://lists.fedoraproject.org/archives/list/[email protected]/message/QXAWKPT5LXZSUTFSJ6IWSZC7RMYYQXQD/ https://lists.fedoraproject.org/archives/list/[email protected]/message/FZVF6BSJLRQZ7PFFR4X5JSU6KUJYNOCU/ https://www.oracle.com/security-alerts/cpuapr2022.html
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction Required
NONE
Scope
NONE
Confidentiality Impact
UNCHANGED
Integrity Impact
HIGH
Availability Impact
NONE
Base Score
NONE
Base Severity
5.9