Уязвимость CVE-2021-41773: Информация

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.

Важность: HIGH (7,5) Вектор: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Опубликовано: 5 октября 2021 г.
Изменено: 7 ноября 2023 г.
Идентификатор типа ошибки: CWE-22

Исправленные пакеты

Имя пакета
Ветка
Исправлено в версии
Версия в репозитории
Errata ID
№ Задания
Состояние
apache2sisyphus2.4.50-alt12.4.59-alt1ALT-PU-2021-2994-1286602Исправлено
apache2p102.4.51-alt12.4.59-alt1ALT-PU-2021-3018-1286598Исправлено
apache2p92.4.51-alt12.4.58-alt1ALT-PU-2021-3037-1286599Исправлено
apache2c10f12.4.51-alt12.4.59-alt1ALT-PU-2021-3018-1286598Исправлено
apache2c9f22.4.51-alt12.4.59-alt1ALT-PU-2021-3060-1287080Исправлено

Ссылки на рекомендации, решения и инструменты

Ссылка
Ресурс
https://httpd.apache.org/security/vulnerabilities_24.html
  • Vendor Advisory
[oss-security] 20211005 CVE-2021-41773: Path traversal and file disclosure vulnerability in Apache HTTP Server 2.4.49
  • Mailing List
  • Third Party Advisory
http://packetstormsecurity.com/files/164418/Apache-HTTP-Server-2.4.49-Path-Traversal.html
  • Exploit
  • Third Party Advisory
  • VDB Entry
[oss-security] 20211007 RE: CVE-2021-41773: Path traversal and file disclosure vulnerability in Apache HTTP Server 2.4.49
  • Mailing List
  • Third Party Advisory
http://packetstormsecurity.com/files/164418/Apache-HTTP-Server-2.4.49-Path-Traversal-Remote-Code-Execution.html
  • Exploit
  • Third Party Advisory
  • VDB Entry
[oss-security] 20211007 CVE-2021-42013: Path Traversal and Remote Code Execution in Apache HTTP Server 2.4.49 and 2.4.50 (incomplete fix of CVE-2021-41773)
  • Mailing List
  • Third Party Advisory
20211007 Apache HTTP Server Vulnerabilties: October 2021
  • Third Party Advisory
[oss-security] 20211008 Re: CVE-2021-42013: Path Traversal and Remote Code Execution in Apache HTTP Server 2.4.49 and 2.4.50 (incomplete fix of CVE-2021-41773)
  • Exploit
  • Mailing List
  • Third Party Advisory
[oss-security] 20211008 Re: CVE-2021-42013: Path Traversal and Remote Code Execution in Apache HTTP Server 2.4.49 and 2.4.50 (incomplete fix of CVE-2021-41773)
  • Mailing List
  • Third Party Advisory
[oss-security] 20211008 Re: CVE-2021-42013: Path Traversal and Remote Code Execution in Apache HTTP Server 2.4.49 and 2.4.50 (incomplete fix of CVE-2021-41773)
  • Mailing List
  • Third Party Advisory
[oss-security] 20211008 Re: CVE-2021-42013: Path Traversal and Remote Code Execution in Apache HTTP Server 2.4.49 and 2.4.50 (incomplete fix of CVE-2021-41773)
  • Exploit
  • Mailing List
  • Third Party Advisory
[oss-security] 20211008 Re: CVE-2021-42013: Path Traversal and Remote Code Execution in Apache HTTP Server 2.4.49 and 2.4.50 (incomplete fix of CVE-2021-41773)
  • Mailing List
  • Third Party Advisory
[oss-security] 20211008 Re: CVE-2021-42013: Path Traversal and Remote Code Execution in Apache HTTP Server 2.4.49 and 2.4.50 (incomplete fix of CVE-2021-41773)
  • Mailing List
  • Third Party Advisory
[oss-security] 20211009 Re: CVE-2021-42013: Path Traversal and Remote Code Execution in Apache HTTP Server 2.4.49 and 2.4.50 (incomplete fix of CVE-2021-41773)
  • Mailing List
  • Third Party Advisory
[oss-security] 20211011 Re: CVE-2021-42013: Path Traversal and Remote Code Execution in Apache HTTP Server 2.4.49 and 2.4.50 (incomplete fix of CVE-2021-41773)
  • Mailing List
  • Patch
  • Third Party Advisory
[oss-security] 20211015 Re: CVE-2021-42013: Path Traversal and Remote Code Execution in Apache HTTP Server 2.4.49 and 2.4.50 (incomplete fix of CVE-2021-41773)
  • Mailing List
  • Patch
  • Third Party Advisory
[oss-security] 20211016 Re: CVE-2021-42013: Path Traversal and Remote Code Execution in Apache HTTP Server 2.4.49 and 2.4.50 (incomplete fix of CVE-2021-41773)
  • Mailing List
  • Third Party Advisory
http://packetstormsecurity.com/files/164629/Apache-2.4.49-2.4.50-Traversal-Remote-Code-Execution.html
  • Exploit
  • Third Party Advisory
  • VDB Entry
https://security.netapp.com/advisory/ntap-20211029-0009/
  • Third Party Advisory
http://packetstormsecurity.com/files/164941/Apache-HTTP-Server-2.4.50-Remote-Code-Execution.html
  • Exploit
  • Third Party Advisory
  • VDB Entry
https://www.oracle.com/security-alerts/cpujan2022.html
  • Patch
  • Third Party Advisory
GLSA-202208-20
  • Third Party Advisory
[httpd-users] 20211005 [users@httpd] CVE-2021-41773: Path traversal and file disclosure vulnerability in Apache HTTP Server 2.4.49
    [announce] 20211005 CVE-2021-41773: Path traversal and file disclosure vulnerability in Apache HTTP Server 2.4.49
      [announce] 20211007 CVE-2021-42013: Path Traversal and Remote Code Execution in Apache HTTP Server 2.4.49 and 2.4.50 (incomplete fix of CVE-2021-41773)
        [httpd-users] 20211007 [users@httpd] CVE-2021-42013: Path Traversal and Remote Code Execution in Apache HTTP Server 2.4.49 and 2.4.50 (incomplete fix of CVE-2021-41773)
          [httpd-cvs] 20211008 [httpd-site] branch main updated: * Align with CVE-2021-42013 based on the latest findings
            FEDORA-2021-2a10bc68a4
              FEDORA-2021-aaf90ef84a
                  1. Конфигурация 1

                    cpe:2.3:a:apache:http_server:2.4.49:*:*:*:*:*:*:*

                    Конфигурация 2

                    cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*

                    cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*

                    Конфигурация 3

                    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:-:*:*:*:*:*:*:*