Описание
Rack is a modular Ruby web server interface. Prior to version 2.2.18, Rack::QueryParser enforces its params_limit only for parameters separated by &, while still splitting on both & and ;. As a result, attackers could use ; separators to bypass the parameter count limit and submit more parameters than intended. Applications or middleware that directly invoke Rack::QueryParser with its default configuration (no explicit delimiter) could be exposed to increased CPU and memory consumption. This can be abused as a limited denial-of-service vector. This issue has been patched in version 2.2.18.
Ссылки
- Patch
- MitigationVendor Advisory
Уязвимые конфигурации
EPSS
7.5 High
CVSS3
Дефекты
Связанные уязвимости
Rack is a modular Ruby web server interface. Prior to version 2.2.18, Rack::QueryParser enforces its params_limit only for parameters separated by &, while still splitting on both & and ;. As a result, attackers could use ; separators to bypass the parameter count limit and submit more parameters than intended. Applications or middleware that directly invoke Rack::QueryParser with its default configuration (no explicit delimiter) could be exposed to increased CPU and memory consumption. This can be abused as a limited denial-of-service vector. This issue has been patched in version 2.2.18.
Rack is a modular Ruby web server interface. Prior to version 2.2.18, ...
Rack has an unsafe default in Rack::QueryParser allows params_limit bypass via semicolon-separated parameters
Уязвимость функции QueryParser() интерфейса модуля Rack интерпретатора языка программирования Ruby, позволяющая нарушителю вызвать отказ в обслуживании
EPSS
7.5 High
CVSS3