Описание
A timing attack against mod_auth_digest in Apache HTTP Server 2.4.66 allows a bypass of Digest authentication by a remote attacker.
Users are recommended to upgrade to version 2.4.67, which fixes this issue.
A flaw was found in the mod_auth_digest module of httpd. A remote unauthenticated attacker can bypass digest authentication by measuring timing discrepancies of requests. This issue leads to unauthorized access to resources protected by digest authentication.
Отчет
To exploit this vulnerability, an attacker needs to send a high volume of specific requests to the server. These payloads are used to trigger the vulnerable and non-constant-time code path to perform statistical analysis on the resulting timing variations, increasing the complexity of exploitation. The primary security impact of this issue is the unauthorized access to resources protected by digest authentication. Due to these reasons, this flaw has been rated with a moderate severity.
Меры по смягчению последствий
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 6 | httpd | Out of support scope | ||
| Red Hat Enterprise Linux 7 | httpd | Out of support scope | ||
| Red Hat Enterprise Linux 8 | httpd:2.4/httpd | Fix deferred | ||
| Red Hat JBoss Core Services | mod_auth_digest.so | Fix deferred | ||
| Red Hat Enterprise Linux 10 | httpd | Fixed | RHSA-2026:34109 | 01.07.2026 |
| Red Hat Enterprise Linux 9 | httpd | Fixed | RHSA-2026:41906 | 20.07.2026 |
| Red Hat Hardened Images | httpd-main-2.4.67-1.hum1 | Fixed | RHSA-2026:17080 | 13.05.2026 |
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Дополнительная информация
Статус:
4.8 Medium
CVSS3
Связанные уязвимости
A timing attack against mod_auth_digest in Apache HTTP Server 2.4.66 allows a bypass of Digest authentication by a remote attacker. Users are recommended to upgrade to version 2.4.67, which fixes this issue.
A timing attack against mod_auth_digest in Apache HTTP Server 2.4.66 allows a bypass of Digest authentication by a remote attacker. Users are recommended to upgrade to version 2.4.67, which fixes this issue.
A timing attack against mod_auth_digest in Apache HTTP Server 2.4.66 a ...
A timing attack against mod_auth_digest in Apache HTTP Server 2.4.66 allows a bypass of Digest authentication by a remote attacker. Users are recommended to upgrade to version 2.4.67, which fixes this issue.
4.8 Medium
CVSS3