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CVE-2021-41773

Опубликовано: 05 окт. 2021
Источник: nvd
CVSS3: 7.5
CVSS2: 4.3
EPSS Критический

Описание

A flaw was found in a change made to path normalization in Apache HTTP Server 2.4.49. An attacker could use a path traversal attack to map URLs to files outside the directories configured by Alias-like directives. If files outside of these directories are not protected by the usual default configuration "require all denied", these requests can succeed. If CGI scripts are also enabled for these aliased pathes, this could allow for remote code execution. This issue is known to be exploited in the wild. This issue only affects Apache 2.4.49 and not earlier versions. The fix in Apache HTTP Server 2.4.50 was found to be incomplete, see CVE-2021-42013.

Ссылки

Уязвимые конфигурации

Конфигурация 1
cpe:2.3:a:apache:http_server:2.4.49:*:*:*:*:*:*:*
Конфигурация 2

Одно из

cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
Конфигурация 3

Одно из

cpe:2.3:a:oracle:instantis_enterprisetrack:17.1:*:*:*:*:*:*:*
cpe:2.3:a:oracle:instantis_enterprisetrack:17.2:*:*:*:*:*:*:*
cpe:2.3:a:oracle:instantis_enterprisetrack:17.3:*:*:*:*:*:*:*
Конфигурация 4
cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:*

EPSS

Процентиль: 100%
0.9437
Критический

7.5 High

CVSS3

4.3 Medium

CVSS2

Дефекты

CWE-22
CWE-22

Связанные уязвимости

CVSS3: 7.5
ubuntu
почти 4 года назад

A flaw was found in a change made to path normalization in Apache HTTP Server 2.4.49. An attacker could use a path traversal attack to map URLs to files outside the directories configured by Alias-like directives. If files outside of these directories are not protected by the usual default configuration "require all denied", these requests can succeed. If CGI scripts are also enabled for these aliased pathes, this could allow for remote code execution. This issue is known to be exploited in the wild. This issue only affects Apache 2.4.49 and not earlier versions. The fix in Apache HTTP Server 2.4.50 was found to be incomplete, see CVE-2021-42013.

CVSS3: 7.5
redhat
почти 4 года назад

A flaw was found in a change made to path normalization in Apache HTTP Server 2.4.49. An attacker could use a path traversal attack to map URLs to files outside the directories configured by Alias-like directives. If files outside of these directories are not protected by the usual default configuration "require all denied", these requests can succeed. If CGI scripts are also enabled for these aliased pathes, this could allow for remote code execution. This issue is known to be exploited in the wild. This issue only affects Apache 2.4.49 and not earlier versions. The fix in Apache HTTP Server 2.4.50 was found to be incomplete, see CVE-2021-42013.

CVSS3: 7.5
msrc
почти 4 года назад

Описание отсутствует

CVSS3: 7.5
debian
почти 4 года назад

A flaw was found in a change made to path normalization in Apache HTTP ...

CVSS3: 7.5
github
около 3 лет назад

A flaw was found in a change made to path normalization in Apache HTTP Server 2.4.49. An attacker could use a path traversal attack to map URLs to files outside the expected document root. If files outside of the document root are not protected by "require all denied" these requests can succeed. Additionally this flaw could leak the source of interpreted files like CGI scripts. This issue is known to be exploited in the wild. This issue only affects Apache 2.4.49 and not earlier versions.

EPSS

Процентиль: 100%
0.9437
Критический

7.5 High

CVSS3

4.3 Medium

CVSS2

Дефекты

CWE-22
CWE-22