Vulnerabilities > CVE-2021-32791 - Reusing a Nonce, Key Pair in Encryption vulnerability in multiple products

CVSS 5.9 - MEDIUM

Attack vector

NETWORK

Attack complexity

HIGH

Privileges required

NONE

Confidentiality impact

HIGH

Integrity impact

NONE

Availability impact

NONE

network

high complexity

openidc

fedoraproject

CWE-323

NVD

Published: 2021-07-26

Updated: 2023-11-07

Summary

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.

Vulnerable Configurations

Part	Description	Count
Application	Openidc Openidc MOD Auth Openidc - Openidc MOD Auth Openidc 1.5 Openidc MOD Auth Openidc 1.5.1 Openidc MOD Auth Openidc 1.5.2 Openidc MOD Auth Openidc 1.5.3 Openidc MOD Auth Openidc 1.5.4 Openidc MOD Auth Openidc 1.5.5 Openidc MOD Auth Openidc 1.6.0 Openidc MOD Auth Openidc 1.7.0 Openidc MOD Auth Openidc 1.7.1 Openidc MOD Auth Openidc 1.7.2 Openidc MOD Auth Openidc 1.7.3 Openidc MOD Auth Openidc 1.8.0 Openidc MOD Auth Openidc 1.8.1 Openidc MOD Auth Openidc 1.8.2 Openidc MOD Auth Openidc 1.8.3 Openidc MOD Auth Openidc 1.8.4 Openidc MOD Auth Openidc 1.8.5 Openidc MOD Auth Openidc 1.8.6 Openidc MOD Auth Openidc 1.8.7 Openidc MOD Auth Openidc 1.8.8 Openidc MOD Auth Openidc 1.8.9 Openidc MOD Auth Openidc 1.8.10 Openidc MOD Auth Openidc 1.8.10.1 Openidc MOD Auth Openidc 1.8.10.2 Openidc MOD Auth Openidc 1.8.10.3 Openidc MOD Auth Openidc 2.0.0 Openidc MOD Auth Openidc 2.1.0 Openidc MOD Auth Openidc 2.1.1 Openidc MOD Auth Openidc 2.1.2 Openidc MOD Auth Openidc 2.1.3 Openidc MOD Auth Openidc 2.1.4 Openidc MOD Auth Openidc 2.1.5 Openidc MOD Auth Openidc 2.1.6 Openidc MOD Auth Openidc 2.1.13 Openidc MOD Auth Openidc 2.2.0 Openidc MOD Auth Openidc 2.3.0 Openidc MOD Auth Openidc 2.3.1 Openidc MOD Auth Openidc 2.3.2 Openidc MOD Auth Openidc 2.3.3 Openidc MOD Auth Openidc 2.3.4 Openidc MOD Auth Openidc 2.3.5 Openidc MOD Auth Openidc 2.3.6 Openidc MOD Auth Openidc 2.3.7 Openidc MOD Auth Openidc 2.3.8 Openidc MOD Auth Openidc 2.3.9 Openidc MOD Auth Openidc 2.3.10 Openidc MOD Auth Openidc 2.3.10.1 Openidc MOD Auth Openidc 2.3.10.2 Openidc MOD Auth Openidc 2.3.11 Openidc MOD Auth Openidc 2.4.0 Openidc MOD Auth Openidc 2.4.0.1 Openidc MOD Auth Openidc 2.4.0.2 Openidc MOD Auth Openidc 2.4.0.3 Openidc MOD Auth Openidc 2.4.0.4 Openidc MOD Auth Openidc 2.4.1 Openidc MOD Auth Openidc 2.4.2 Openidc MOD Auth Openidc 2.4.2.1 Openidc MOD Auth Openidc 2.4.3 Openidc MOD Auth Openidc 2.4.4 Openidc MOD Auth Openidc 2.4.4.1 Openidc MOD Auth Openidc 2.4.5 Openidc MOD Auth Openidc 2.4.6 Openidc MOD Auth Openidc 2.4.7 Openidc MOD Auth Openidc 2.4.7.1 Openidc MOD Auth Openidc 2.4.7.2 Openidc MOD Auth Openidc 2.4.8.1 Openidc MOD Auth Openidc 2.4.8.2 Openidc MOD Auth Openidc 2.4.8.3 Openidc MOD Auth Openidc 2.4.8.4	78
Application	Apache Apache Http Server *	1
OS	Fedoraproject Fedoraproject Fedora 33 Fedoraproject Fedora 34	2

Common Weakness Enumeration (CWE)

CWE-323 - Reusing a Nonce, Key Pair in Encryption

Summary

Vulnerable Configurations

Common Weakness Enumeration (CWE)

References