Описание
Improper Neutralization of Escape, Meta, or Control Sequences vulnerability in Apache Tomcat. For a subset of unlikely rewrite rule configurations, it was possible
for a specially crafted request to bypass some rewrite rules. If those
rewrite rules effectively enforced security constraints, those
constraints could be bypassed.
This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.5, from 10.1.0-M1 through 10.1.39, from 9.0.0.M1 through 9.0.102.
Users are recommended to upgrade to version [FIXED_VERSION], which fixes the issue.
A flaw was found in Apache Tomcat's rewrite rule processing component. This vulnerability allows security constraints to be bypassed via specially crafted HTTP requests when specific, uncommon rewrite rule configurations are in use.
Отчет
This vulnerability is rated as Low severity because it only manifests under a narrow set of conditions involving uncommon and non-default rewrite rule configurations that rely on specific patterns in the raw requestURI, including path parameters. In most deployments, rewrite rules operate on decoded and normalized URIs or are used for non-security-critical purposes like routing. Furthermore, Tomcat’s internal processing already normalizes and removes path parameters (;-delimited) before applying security constraints, meaning any bypass would only be feasible if the rewrite logic directly enforced security (which is a poor practice). The flaw does not allow direct code execution, data leakage, or privilege escalation unless the rewrite rule was explicitly misused as a substitute for proper access control. Its impact is further mitigated by the fact that rewrite rules are not typically relied upon for access enforcement. As such, while the bug may lead to incorrect rule evaluation under certain edge-case configurations, it does not represent a significant security risk in practice.
Меры по смягчению последствий
No mitigation is currently available that meets Red Hat Product Security’s standards for usability, deployment, applicability, or stability.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 10 | tomcat | Fix deferred | ||
| Red Hat Enterprise Linux 10 | tomcat9 | Fix deferred | ||
| Red Hat Enterprise Linux 6 | tomcat6 | Out of support scope | ||
| Red Hat Enterprise Linux 7 | tomcat | Out of support scope | ||
| Red Hat Enterprise Linux 8 | pki-deps:10.6/pki-servlet-engine | Fix deferred | ||
| Red Hat Enterprise Linux 8 | tomcat | Fix deferred | ||
| Red Hat Enterprise Linux 9 | pki-servlet-engine | Fix deferred | ||
| Red Hat Enterprise Linux 9 | tomcat | Fix deferred | ||
| Red Hat JBoss Web Server 5 | tomcat | Fix deferred | ||
| Red Hat JBoss Web Server 6 | tomcat | Affected |
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Дополнительная информация
Статус:
EPSS
5.3 Medium
CVSS3
Связанные уязвимости
Improper Neutralization of Escape, Meta, or Control Sequences vulnerability in Apache Tomcat. For a subset of unlikely rewrite rule configurations, it was possible for a specially crafted request to bypass some rewrite rules. If those rewrite rules effectively enforced security constraints, those constraints could be bypassed. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.5, from 10.1.0-M1 through 10.1.39, from 9.0.0.M1 through 9.0.102. Users are recommended to upgrade to version [FIXED_VERSION], which fixes the issue.
Improper Neutralization of Escape, Meta, or Control Sequences vulnerability in Apache Tomcat. For a subset of unlikely rewrite rule configurations, it was possible for a specially crafted request to bypass some rewrite rules. If those rewrite rules effectively enforced security constraints, those constraints could be bypassed. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.5, from 10.1.0-M1 through 10.1.39, from 9.0.0.M1 through 9.0.102. Users are recommended to upgrade to version [FIXED_VERSION], which fixes the issue.
Improper Neutralization of Escape, Meta, or Control Sequences vulnerab ...
EPSS
5.3 Medium
CVSS3