Описание
Rack is a modular Ruby web server interface. Prior to versions 2.2.23, 3.1.21, and 3.2.6, Rack::Multipart::Parser extracts the boundary parameter from multipart/form-data using a greedy regular expression. When a Content-Type header contains multiple boundary parameters, Rack selects the last one rather than the first. In deployments where an upstream proxy, WAF, or intermediary interprets the first boundary parameter, this mismatch can allow an attacker to smuggle multipart content past upstream inspection and have Rack parse a different body structure than the intermediary validated. This issue has been patched in versions 2.2.23, 3.1.21, and 3.2.6.
| Релиз | Статус | Примечание |
|---|---|---|
| devel | needed | |
| esm-apps-legacy/xenial | ignored | changes too intrusive |
| esm-apps/bionic | ignored | changes too intrusive |
| esm-apps/focal | released | 2.0.7-2ubuntu0.1+esm10 |
| esm-apps/jammy | released | 2.1.4-5ubuntu1.2+esm3 |
| esm-apps/xenial | ignored | end of ESM support, was ignored [changes too intrusive] |
| esm-infra-legacy/trusty | ignored | changes too intrusive |
| jammy | needed | |
| noble | released | 2.2.7-1ubuntu0.7 |
| questing | released | 3.1.16-0.1ubuntu0.3 |
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EPSS
3.7 Low
CVSS3
Связанные уязвимости
Rack is a modular Ruby web server interface. Prior to versions 2.2.23, 3.1.21, and 3.2.6, Rack::Multipart::Parser extracts the boundary parameter from multipart/form-data using a greedy regular expression. When a Content-Type header contains multiple boundary parameters, Rack selects the last one rather than the first. In deployments where an upstream proxy, WAF, or intermediary interprets the first boundary parameter, this mismatch can allow an attacker to smuggle multipart content past upstream inspection and have Rack parse a different body structure than the intermediary validated. This issue has been patched in versions 2.2.23, 3.1.21, and 3.2.6.
Rack is a modular Ruby web server interface. Prior to versions 2.2.23, 3.1.21, and 3.2.6, Rack::Multipart::Parser extracts the boundary parameter from multipart/form-data using a greedy regular expression. When a Content-Type header contains multiple boundary parameters, Rack selects the last one rather than the first. In deployments where an upstream proxy, WAF, or intermediary interprets the first boundary parameter, this mismatch can allow an attacker to smuggle multipart content past upstream inspection and have Rack parse a different body structure than the intermediary validated. This issue has been patched in versions 2.2.23, 3.1.21, and 3.2.6.
Rack is a modular Ruby web server interface. Prior to versions 2.2.23, ...
Rack's greedy multipart boundary parsing can cause parser differentials and WAF bypass.
Уязвимость модульного интерфейса веб-сервера Rack языка программирования Ruby, позволяющая нарушителю обойти ограничения безопасности
EPSS
3.7 Low
CVSS3