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CVE-2021-44224

Опубликовано: 20 дек. 2021
Источник: redhat
CVSS3: 7.1
EPSS Средний

Описание

A crafted URI sent to httpd configured as a forward proxy (ProxyRequests on) can cause a crash (NULL pointer dereference) or, for configurations mixing forward and reverse proxy declarations, can allow for requests to be directed to a declared Unix Domain Socket endpoint (Server Side Request Forgery). This issue affects Apache HTTP Server 2.4.7 up to 2.4.51 (included).

There's a null pointer dereference and server-side request forgery flaw in httpd's mod_proxy module, when it is configured to be used as a forward proxy. A crafted packet could be sent on the adjacent network to the forward proxy that could cause a crash, or potentially SSRF via misdirected Unix Domain Socket requests. In the worst case, this could cause a denial of service or compromise to confidentiality of data.

Отчет

This flaw does not affect httpd configurations that do not use forward proxy functionality (configurations where ProxyRequests is turned off).

Меры по смягчению последствий

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

Затронутые пакеты

ПлатформаПакетСостояниеРекомендацияРелиз
Red Hat Enterprise Linux 6httpdNot affected
Red Hat Enterprise Linux 7httpdNot affected
Red Hat Enterprise Linux 9httpdNot affected
Red Hat JBoss Enterprise Application Platform 6httpdOut of support scope
JBoss Core Services for RHEL 8jbcs-httpd24-httpdFixedRHSA-2022:714326.10.2022
JBoss Core Services on RHEL 7jbcs-httpd24-httpdFixedRHSA-2022:714326.10.2022
Red Hat Enterprise Linux 8httpdFixedRHSA-2022:191510.05.2022
Red Hat Software Collections for Red Hat Enterprise Linux 7httpd24-httpdFixedRHSA-2022:675329.09.2022
Text-Only JBCSjbcs-httpd24-httpdFixedRHSA-2022:714426.10.2022

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Дополнительная информация

Статус:

Moderate
Дефект:
CWE-476
Дефект:
CWE-918
https://bugzilla.redhat.com/show_bug.cgi?id=2034672httpd: possible NULL dereference or SSRF in forward proxy configurations

EPSS

Процентиль: 94%
0.13047
Средний

7.1 High

CVSS3

Связанные уязвимости

CVSS3: 8.2
ubuntu
больше 3 лет назад

A crafted URI sent to httpd configured as a forward proxy (ProxyRequests on) can cause a crash (NULL pointer dereference) or, for configurations mixing forward and reverse proxy declarations, can allow for requests to be directed to a declared Unix Domain Socket endpoint (Server Side Request Forgery). This issue affects Apache HTTP Server 2.4.7 up to 2.4.51 (included).

CVSS3: 8.2
nvd
больше 3 лет назад

A crafted URI sent to httpd configured as a forward proxy (ProxyRequests on) can cause a crash (NULL pointer dereference) or, for configurations mixing forward and reverse proxy declarations, can allow for requests to be directed to a declared Unix Domain Socket endpoint (Server Side Request Forgery). This issue affects Apache HTTP Server 2.4.7 up to 2.4.51 (included).

CVSS3: 8.2
msrc
больше 3 лет назад

Описание отсутствует

CVSS3: 8.2
debian
больше 3 лет назад

A crafted URI sent to httpd configured as a forward proxy (ProxyReques ...

CVSS3: 8.2
github
больше 3 лет назад

A crafted URI sent to httpd configured as a forward proxy (ProxyRequests on) can cause a crash (NULL pointer dereference) or, for configurations mixing forward and reverse proxy declarations, can allow for requests to be directed to a declared Unix Domain Socket endpoint (Server Side Request Forgery). This issue affects Apache HTTP Server 2.4.7 up to 2.4.51 (included).

EPSS

Процентиль: 94%
0.13047
Средний

7.1 High

CVSS3