GHSA-86wm-rrjm-8wh8

Опубликовано: 02 дек. 2020

Источник: github

Github: Прошло ревью

CVSS3: 4.8

Описание

Buffer not correctly recycled in Gzip Request inflation

Impact

If GZIP request body inflation is enabled and requests from different clients are multiplexed onto a single connection and if an attacker can send a request with a body that is received entirely by not consumed by the application, then a subsequent request on the same connection will see that body prepended to it's body.

The attacker will not see any data, but may inject data into the body of the subsequent request

CVE score is 4.8 AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L

Workarounds

The problem can be worked around by either:

Disabling compressed request body inflation by GzipHandler.
By always fully consuming the request content before sending a response.
By adding a Connection: close to any response where the servlet does not fully consume request content.

Ссылки

Пакеты

Наименование

org.eclipse.jetty:jetty-server

maven

Затронутые версииВерсия исправления

>= 9.4.0, <= 9.4.34

9.4.35.v20201120

EPSS

Процентиль: 69%

0.00599

Низкий

4.8 Medium

CVSS3

CVE ID

CVE-2020-27218

Дефекты

CWE-226

Связанные уязвимости

CVE-2020-27218

CVSS3: 4.8

ubuntu

около 5 лет назад

In Eclipse Jetty version 9.4.0.RC0 to 9.4.34.v20201102, 10.0.0.alpha0 to 10.0.0.beta2, and 11.0.0.alpha0 to 11.0.0.beta2, if GZIP request body inflation is enabled and requests from different clients are multiplexed onto a single connection, and if an attacker can send a request with a body that is received entirely but not consumed by the application, then a subsequent request on the same connection will see that body prepended to its body. The attacker will not see any data but may inject data into the body of the subsequent request.