CVE-2021-32791mediumCWE-323CWE-330

CVE-2021-32791: fallo de gravedad media en zmartzone mod_auth_openidc

Hardcoded static IV and AAD with a reused key in AES GCM encryption in mod_auth_openidc

Publicada el · Actualizada el

Seguir esta CVE+ Monitorear mod auth openidc+ Monitorear libapache2-mod-auth-openidc

Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.

13Vexday Risk Score

Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.

ssvc Trackcvss 5.9epss 1.5%
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:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Productos afectados
zmartzone · mod_auth_openidc
CVEs relacionadas — zmartzone mod_auth_openidc

En el mismo producto, de las más peligrosas a las menos.

CVE-2021-32785MEDIUMFormat string bug in the Redis cache implementationEPSS 2.7%CVE-2021-32786MEDIUMOpen Redirect in oidc_validate_redirect_url()EPSS 2.4%CVE-2021-39191MEDIUMURL Redirection to Untrusted Site ('Open Redirect') in mod_auth_openidcEPSS 1.7%CVE-2021-32792LOWXSS vulnerability when using OIDCPreservePost On in mod_auth_openidcEPSS 1.5%CVE-2022-23527MEDIUMOpen Redirect in oidc_validate_redirect_url()EPSS 0.9%