Описание
HAProxy before 2.7.3 may allow a bypass of access control because HTTP/1 headers are inadvertently lost in some situations, aka "request smuggling." The HTTP header parsers in HAProxy may accept empty header field names, which could be used to truncate the list of HTTP headers and thus make some headers disappear after being parsed and processed for HTTP/1.0 and HTTP/1.1. For HTTP/2 and HTTP/3, the impact is limited because the headers disappear before being parsed and processed, as if they had not been sent by the client. The fixed versions are 2.7.3, 2.6.9, 2.5.12, 2.4.22, 2.2.29, and 2.0.31.
A flaw was found in HAProxy's headers processing that causes HAProxy to drop important headers fields such as Connection, Content-length, Transfer-Encoding, and Host after having partially processed them. A maliciously crafted HTTP request could be used in an HTTP request smuggling attack to bypass filtering and detection by HAProxy.
Отчет
Red Hat OpenStack Platform doesn't ship any haproxy code of its own and instead the openstack-haproxy-container consumes the haproxy RPM provided by RHEL.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 7 | haproxy | Not affected | ||
| Red Hat Enterprise Linux 8 | haproxy | Not affected | ||
| Red Hat OpenShift Container Platform 3.11 | haproxy | Out of support scope | ||
| Red Hat Software Collections | rh-haproxy18-haproxy | Not affected | ||
| Red Hat Ceph Storage 5.3 | rhceph/rhceph-haproxy-rhel8 | Fixed | RHSA-2024:0746 | 08.02.2024 |
| Red Hat Enterprise Linux 9 | haproxy | Fixed | RHSA-2023:1696 | 11.04.2023 |
| Red Hat Enterprise Linux 9.0 Extended Update Support | haproxy | Fixed | RHSA-2023:1978 | 25.04.2023 |
| Red Hat OpenShift Container Platform 4.10 | haproxy | Fixed | RHSA-2023:1655 | 12.04.2023 |
| Red Hat OpenShift Container Platform 4.11 | haproxy | Fixed | RHBA-2023:1649 | 12.04.2023 |
| Red Hat OpenShift Container Platform 4.12 | haproxy | Fixed | RHSA-2023:1268 | 21.03.2023 |
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Дополнительная информация
Статус:
EPSS
8.2 High
CVSS3
Связанные уязвимости
HAProxy before 2.7.3 may allow a bypass of access control because HTTP/1 headers are inadvertently lost in some situations, aka "request smuggling." The HTTP header parsers in HAProxy may accept empty header field names, which could be used to truncate the list of HTTP headers and thus make some headers disappear after being parsed and processed for HTTP/1.0 and HTTP/1.1. For HTTP/2 and HTTP/3, the impact is limited because the headers disappear before being parsed and processed, as if they had not been sent by the client. The fixed versions are 2.7.3, 2.6.9, 2.5.12, 2.4.22, 2.2.29, and 2.0.31.
HAProxy before 2.7.3 may allow a bypass of access control because HTTP/1 headers are inadvertently lost in some situations, aka "request smuggling." The HTTP header parsers in HAProxy may accept empty header field names, which could be used to truncate the list of HTTP headers and thus make some headers disappear after being parsed and processed for HTTP/1.0 and HTTP/1.1. For HTTP/2 and HTTP/3, the impact is limited because the headers disappear before being parsed and processed, as if they had not been sent by the client. The fixed versions are 2.7.3, 2.6.9, 2.5.12, 2.4.22, 2.2.29, and 2.0.31.
HAProxy before 2.7.3 may allow a bypass of access control because HTTP ...
EPSS
8.2 High
CVSS3