Описание
Picomatch is a glob matcher written JavaScript. Versions prior to 4.0.4, 3.0.2, and 2.3.2 are vulnerable to a method injection vulnerability affecting the POSIX_REGEX_SOURCE object. Because the object inherits from Object.prototype, specially crafted POSIX bracket expressions (e.g., [[:constructor:]]) can reference inherited method names. These methods are implicitly converted to strings and injected into the generated regular expression. This leads to incorrect glob matching behavior (integrity impact), where patterns may match unintended filenames. The issue does not enable remote code execution, but it can cause security-relevant logic errors in applications that rely on glob matching for filtering, validation, or access control. All users of affected picomatch versions that process untrusted or user-controlled glob patterns are potentially impacted. This issue is fixed in picomatch 4.0.4, 3.0.2 and 2.3.2. Users should upgrade to one of these versions or later, depending on their supported release line. If upgrading is not immediately possible, avoid passing untrusted glob patterns to picomatch. Possible mitigations include sanitizing or rejecting untrusted glob patterns, especially those containing POSIX character classes like [[:...:]]; avoiding the use of POSIX bracket expressions if user input is involved; and manually patching the library by modifying POSIX_REGEX_SOURCE to use a null prototype.
A flaw was found in picomatch, a JavaScript glob matcher. A remote attacker could exploit a method injection vulnerability by providing specially crafted POSIX bracket expressions, such as [[:constructor:]]. This allows the attacker to inject inherited method names into generated regular expressions, leading to incorrect glob matching behavior. This issue can cause security-relevant logic errors in applications that use picomatch for filtering, validation, or access control, potentially compromising data integrity.
Меры по смягчению последствий
To mitigate this issue, applications should sanitize or reject untrusted glob patterns, particularly those containing POSIX character classes like [[:...:]]. Avoid using POSIX bracket expressions if user input is involved. No service restart or reload is typically required for this operational control, but applications should be re-evaluated to ensure proper input handling.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Cryostat 4 | picomatch | Fix deferred | ||
| Migration Toolkit for Applications 8 | mta/mta-ui-rhel9 | Fix deferred | ||
| Node HealthCheck Operator | workload-availability/node-healthcheck-must-gather-rhel9 | Fix deferred | ||
| Node HealthCheck Operator | workload-availability/node-healthcheck-operator-bundle | Fix deferred | ||
| Node HealthCheck Operator | workload-availability/node-healthcheck-rhel9-operator | Fix deferred | ||
| Node HealthCheck Operator | workload-availability/node-remediation-console-rhel9 | Fix deferred | ||
| Red Hat 3scale API Management Platform 2 | 3scale-amp20/system | Fix deferred | ||
| Red Hat 3scale API Management Platform 2 | 3scale-amp21/system | Fix deferred | ||
| Red Hat 3scale API Management Platform 2 | 3scale-amp22/system | Fix deferred | ||
| Red Hat 3scale API Management Platform 2 | 3scale-amp24/system | Fix deferred |
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Дополнительная информация
Статус:
EPSS
5.3 Medium
CVSS3
Связанные уязвимости
Picomatch is a glob matcher written JavaScript. Versions prior to 4.0.4, 3.0.2, and 2.3.2 are vulnerable to a method injection vulnerability affecting the `POSIX_REGEX_SOURCE` object. Because the object inherits from `Object.prototype`, specially crafted POSIX bracket expressions (e.g., `[[:constructor:]]`) can reference inherited method names. These methods are implicitly converted to strings and injected into the generated regular expression. This leads to incorrect glob matching behavior (integrity impact), where patterns may match unintended filenames. The issue does not enable remote code execution, but it can cause security-relevant logic errors in applications that rely on glob matching for filtering, validation, or access control. All users of affected `picomatch` versions that process untrusted or user-controlled glob patterns are potentially impacted. This issue is fixed in picomatch 4.0.4, 3.0.2 and 2.3.2. Users should upgrade to one of these versions or later, depending ...
Picomatch is a glob matcher written JavaScript. Versions prior to 4.0.4, 3.0.2, and 2.3.2 are vulnerable to a method injection vulnerability affecting the `POSIX_REGEX_SOURCE` object. Because the object inherits from `Object.prototype`, specially crafted POSIX bracket expressions (e.g., `[[:constructor:]]`) can reference inherited method names. These methods are implicitly converted to strings and injected into the generated regular expression. This leads to incorrect glob matching behavior (integrity impact), where patterns may match unintended filenames. The issue does not enable remote code execution, but it can cause security-relevant logic errors in applications that rely on glob matching for filtering, validation, or access control. All users of affected `picomatch` versions that process untrusted or user-controlled glob patterns are potentially impacted. This issue is fixed in picomatch 4.0.4, 3.0.2 and 2.3.2. Users should upgrade to one of these versions or later, depending on
Picomatch: Method Injection in POSIX Character Classes causes incorrect Glob Matching
Picomatch is a glob matcher written JavaScript. Versions prior to 4.0. ...
Picomatch: Method Injection in POSIX Character Classes causes incorrect Glob Matching
EPSS
5.3 Medium
CVSS3