critique
CVE-2021-41773
httpd: path traversal and file disclosure vulnerability
Dans la Trivy database depuis au moins le 24 oct. 2026, 07:11 UTCLa date d'entrée avant ce build n'est pas enregistrée.
Sévérité par source
NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Red Hat7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Bitnami9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Le label propre à Trivy est CRITICAL. Critique selon NVD, Bitnami, Photon OS. Plus basse selon Red Hat (élevée), Amazon (élevée), CBL-Mariner (élevée).
Description
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.
Paquets affectés et versions corrigées
| Source | Paquet | Corrigé en |
|---|---|---|
| bitnami::Bitnami Vulnerability Database | apache | 2.4.50 |
| Photon OS 4.0 | httpd, httpd-devel, httpd-docs et 1 autres | 2.4.51-1.ph4 |
| alpine 3.11 | apache2 | 2.4.50-r0 |
| alpine 3.12 | apache2 | 2.4.50-r0 |
| alpine 3.13 | apache2 | 2.4.50-r0 |
| alpine 3.14 | apache2 | 2.4.50-r0 |
| alpine 3.15 | apache2 | 2.4.50-r0 |
| alpine 3.16 | apache2 | 2.4.50-r0 |
| alpine 3.17 | apache2 | 2.4.50-r0 |
| alpine 3.18 | apache2 | 2.4.50-r0 |
| alpine 3.19 | apache2 | 2.4.50-r0 |
| alpine 3.20 | apache2 | 2.4.50-r0 |
Afficher les 48 entrées de 26 sources
| Source | Paquet | Corrigé en |
|---|---|---|
| bitnami::Bitnami Vulnerability Database | apache | 2.4.50 |
| Photon OS 4.0 | httpd | 2.4.51-1.ph4 |
| Photon OS 4.0 | httpd-devel | 2.4.51-1.ph4 |
| Photon OS 4.0 | httpd-docs | 2.4.51-1.ph4 |
| Photon OS 4.0 | httpd-tools | 2.4.51-1.ph4 |
| alpine 3.11 | apache2 | 2.4.50-r0 |
| alpine 3.12 | apache2 | 2.4.50-r0 |
| alpine 3.13 | apache2 | 2.4.50-r0 |
| alpine 3.14 | apache2 | 2.4.50-r0 |
| alpine 3.15 | apache2 | 2.4.50-r0 |
| alpine 3.16 | apache2 | 2.4.50-r0 |
| alpine 3.17 | apache2 | 2.4.50-r0 |
| alpine 3.18 | apache2 | 2.4.50-r0 |
| alpine 3.19 | apache2 | 2.4.50-r0 |
| alpine 3.20 | apache2 | 2.4.50-r0 |
| alpine 3.21 | apache2 | 2.4.50-r0 |
| alpine 3.22 | apache2 | 2.4.50-r0 |
| alpine 3.23 | apache2 | 2.4.50-r0 |
| alpine 3.24 | apache2 | 2.4.50-r0 |
| alpine edge | apache2 | 2.4.50-r0 |
| amazon linux 1 | httpd24 | 2.4.51-1.94.amzn1 |
| amazon linux 1 | httpd24-debuginfo | 2.4.51-1.94.amzn1 |
| amazon linux 1 | httpd24-devel | 2.4.51-1.94.amzn1 |
| amazon linux 1 | httpd24-manual | 2.4.51-1.94.amzn1 |
| amazon linux 1 | httpd24-tools | 2.4.51-1.94.amzn1 |
| amazon linux 1 | mod24_ldap | 2.4.51-1.94.amzn1 |
| amazon linux 1 | mod24_md | 2.4.51-1.94.amzn1 |
| amazon linux 1 | mod24_proxy_html | 1:2.4.51-1.94.amzn1 |
| amazon linux 1 | mod24_session | 2.4.51-1.94.amzn1 |
| amazon linux 1 | mod24_ssl | 1:2.4.51-1.94.amzn1 |
| amazon linux 2 | httpd | 2.4.51-1.amzn2 |
| amazon linux 2 | httpd-debuginfo | 2.4.51-1.amzn2 |
| amazon linux 2 | httpd-devel | 2.4.51-1.amzn2 |
| amazon linux 2 | httpd-filesystem | 2.4.51-1.amzn2 |
| amazon linux 2 | httpd-manual | 2.4.51-1.amzn2 |
| amazon linux 2 | httpd-tools | 2.4.51-1.amzn2 |
| amazon linux 2 | mod_ldap | 2.4.51-1.amzn2 |
| amazon linux 2 | mod_md | 2.4.51-1.amzn2 |
| amazon linux 2 | mod_proxy_html | 1:2.4.51-1.amzn2 |
| amazon linux 2 | mod_session | 2.4.51-1.amzn2 |
| amazon linux 2 | mod_ssl | 1:2.4.51-1.amzn2 |
| CBL-Mariner 1.0 | httpd | 0:2.4.51-1.cm1 |
| debian 12 | apache2 | 2.4.50-1 |
| debian 13 | apache2 | 2.4.50-1 |
| debian 14 | apache2 | 2.4.50-1 |
| echo | apache2 | 2.4.50-1 |
| root.io debian 12 | rootio-apache2 | 2.4.50-1 |
| root.io debian 13 | rootio-apache2 | 2.4.50-1 |
Références
- http://packetstormsecurity.com/files/164418/Apache-HTTP-Server-2.4.49-Path-Traversal-Remote-Code-Execution.html
- http://packetstormsecurity.com/files/164418/Apache-HTTP-Server-2.4.49-Path-Traversal.html
- http://packetstormsecurity.com/files/164629/Apache-2.4.49-2.4.50-Traversal-Remote-Code-Execution.html
- http://packetstormsecurity.com/files/164941/Apache-HTTP-Server-2.4.50-Remote-Code-Execution.html
- http://www.openwall.com/lists/oss-security/2021/10/05/2
- http://www.openwall.com/lists/oss-security/2021/10/07/1
- http://www.openwall.com/lists/oss-security/2021/10/07/6
- http://www.openwall.com/lists/oss-security/2021/10/08/1
Les 34 références
- http://www.openwall.com/lists/oss-security/2021/10/08/2
- http://www.openwall.com/lists/oss-security/2021/10/08/3
- http://www.openwall.com/lists/oss-security/2021/10/08/4
- http://www.openwall.com/lists/oss-security/2021/10/08/5
- http://www.openwall.com/lists/oss-security/2021/10/08/6
- http://www.openwall.com/lists/oss-security/2021/10/09/1
- http://www.openwall.com/lists/oss-security/2021/10/11/4
- http://www.openwall.com/lists/oss-security/2021/10/15/3
- http://www.openwall.com/lists/oss-security/2021/10/16/1
- https://access.redhat.com/security/cve/CVE-2021-41773
- https://httpd.apache.org/security/vulnerabilities_24.html
- https://lists.apache.org/thread.html/r17a4c6ce9aff662efd9459e9d1850ab4a611cb23392fc68264c72cb3@%3Ccvs.httpd.apache.org%3E
- https://lists.apache.org/thread.html/r6abf5f2ba6f1aa8b1030f95367aaf17660c4e4c78cb2338aee18982f@%3Cusers.httpd.apache.org%3E
- https://lists.apache.org/thread.html/r7c795cd45a3384d4d27e57618a215b0ed19cb6ca8eb070061ad5d837@%3Cannounce.apache.org%3E
- https://lists.apache.org/thread.html/r98d704ed4377ed889d40479db79ed1ee2f43b2ebdd79ce84b042df45@%3Cannounce.apache.org%3E
- https://lists.apache.org/thread.html/rb5b0e46f179f60b0c70204656bc52fcb558e961cb4d06a971e9e3efb@%3Cusers.httpd.apache.org%3E
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RMIIEFINL6FUIOPD2A3M5XC6DH45Y3CC/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WS5RVHOIIRECG65ZBTZY7IEJVWQSQPG3/
- https://nvd.nist.gov/vuln/detail/CVE-2021-41773
- https://security.gentoo.org/glsa/202208-20
- https://security.netapp.com/advisory/ntap-20211029-0009/
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-httpd-pathtrv-LAzg68cZ
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-41773
- https://www.cve.org/CVERecord?id=CVE-2021-41773
- https://www.oracle.com/security-alerts/cpujan2022.html