NVD Vulnerability Detail

CVE-2021-32791

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.
Publication Date	July 27, 2021, 2:15 a.m.
Registration Date	July 27, 2021, 10 a.m.
Last Update	Nov. 21, 2024, 3:07 p.m.

CVSS3.1 : MEDIUM
スコア	5.9
Vector	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
攻撃元区分(AV)	ネットワーク
攻撃条件の複雑さ(AC)	高
攻撃に必要な特権レベル(PR)	不要
利用者の関与(UI)	不要
影響の想定範囲(S)	変更なし
機密性への影響(C)	高
完全性への影響(I)	なし
可用性への影響(A)	なし

CVSS2.0 : MEDIUM
Score	4.3
Vector	AV:N/AC:M/Au:N/C:P/I:N/A:N
攻撃元区分(AV)	ネットワーク
攻撃条件の複雑さ(AC)	中
攻撃前の認証要否(Au)	不要
機密性への影響(C)	低
完全性への影響(I)	なし
可用性への影響(A)	なし
Get all privileges.	いいえ
Get user privileges	いいえ
Get other privileges	いいえ
User operation required	いいえ

Affected software configurations

Configuration1		or higher	or less	more than	less than
cpe:2.3:a:openidc:mod_auth_openidc::::::::					2.4.9
execution environment
1	cpe:2.3:a:apache:http_server::::::::

Configuration2	or higher	or less	more than	less than
cpe:2.3:o:fedoraproject:fedora:33:::::::*
cpe:2.3:o:fedoraproject:fedora:34:::::::*

Related information, measures and tools

No	URL	タグ
1	https://github.com/zmartzone/mod_auth_openidc/commit/375407c16c61a70b56fdbe13b0d2c8f11398e92c	Patch Third Party Advisory
2	https://github.com/zmartzone/mod_auth_openidc/commit/375407c16c61a70b56fdbe13b0d2c8f11398e92c	Patch Third Party Advisory
3	https://github.com/zmartzone/mod_auth_openidc/releases/tag/v2.4.9	Release Notes Third Party Advisory
4	https://github.com/zmartzone/mod_auth_openidc/releases/tag/v2.4.9	Release Notes Third Party Advisory
5	https://github.com/zmartzone/mod_auth_openidc/security/advisories/GHSA-px3c-6x7j-3r9r	Patch Third Party Advisory
6	https://github.com/zmartzone/mod_auth_openidc/security/advisories/GHSA-px3c-6x7j-3r9r	Patch Third Party Advisory
7	https://lists.debian.org/debian-lts-announce/2023/04/msg00034.html
8	https://lists.debian.org/debian-lts-announce/2023/04/msg00034.html
9	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FZVF6BSJLRQZ7PFFR4X5JSU6KUJYNOCU/
10	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FZVF6BSJLRQZ7PFFR4X5JSU6KUJYNOCU/
11	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QXAWKPT5LXZSUTFSJ6IWSZC7RMYYQXQD/
12	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QXAWKPT5LXZSUTFSJ6IWSZC7RMYYQXQD/
13	https://www.oracle.com/security-alerts/cpuapr2022.html	Patch Third Party Advisory
14	https://www.oracle.com/security-alerts/cpuapr2022.html	Patch Third Party Advisory

Common Vulnerabilities List

JVN Vulnerability Information

mod_auth_openidc における不十分なランダム値の使用に関する脆弱性

Title	mod_auth_openidc における不十分なランダム値の使用に関する脆弱性
Summary	mod_auth_openidc には、不十分なランダム値の使用に関する脆弱性が存在します。
Possible impacts	情報を取得される可能性があります。
Solution	ベンダより正式な対策が公開されています。ベンダ情報を参照して適切な対策を実施してください。
Publication Date	June 10, 2021, midnight
Registration Date	June 24, 2022, 4:33 p.m.
Last Update	June 24, 2022, 4:33 p.m.

Affected System

Fedora Project

Fedora

ZmartZone IAM

mod_auth_openidc 2.4.9 未満

CVE (情報セキュリティ共通脆弱性識別子)

No	Name	URL
Common Vulnerabilities and Exposures (CVE)
1	CVE-2021-32791	https://www.cve.org/CVERecord?id=CVE-2021-32791
National Vulnerability Database (NVD)
2	CVE-2021-32791	https://nvd.nist.gov/vuln/detail/CVE-2021-32791

CWE (共通脆弱性タイプ一覧)

No	Name	URL
JVNDB
1	CWE-330	https://cwe.mitre.org/data/definitions/330.html

ベンダー情報

No	Name	URL
Fedora Update Notification
1	FEDORA-2021-17f5cedf66	https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QXAWKPT5LXZSUTFSJ6IWSZC7RMYYQXQD/
2	FEDORA-2021-e3017c538a	https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FZVF6BSJLRQZ7PFFR4X5JSU6KUJYNOCU/
GitHub
3	Hardcoded static IV and AAD with a reused key in AES GCM encryption	https://github.com/zmartzone/mod_auth_openidc/security/advisories/GHSA-px3c-6x7j-3r9r
4	release 2.4.9	https://github.com/zmartzone/mod_auth_openidc/releases/tag/v2.4.9
5	use encrypted JWTs for storing encrypted cache contents	https://github.com/zmartzone/mod_auth_openidc/commit/375407c16c61a70b56fdbe13b0d2c8f11398e92c

Change Log

No	Changed Details	Date of change
1	[2022年06月24日] 掲載	June 24, 2022, 4:33 p.m.