kritisch
CVE-2021-42013
httpd: path traversal and remote code execution (incomplete fix of CVE-2021-41773)
In der Trivy Database seit spätestens 24. Okt. 2026, 07:11 UTCWann der Eintrag vor diesem Build hinzukam, ist nicht erfasst.
Einstufung nach Quelle
NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Red Hat8.1CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Bitnami9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Trivys eigenes Label ist CRITICAL. Kritisch laut NVD, Bitnami, Photon OS. Niedriger laut Red Hat (hoch), Amazon (hoch).
Beschreibung
It was found that the fix for CVE-2021-41773 in Apache HTTP Server 2.4.50 was insufficient. 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 only affects Apache 2.4.49 and Apache 2.4.50 and not earlier versions.
Betroffene Pakete und behobene Versionen
| Quelle | Paket | Behoben in |
|---|---|---|
| bitnami::Bitnami Vulnerability Database | apache | 2.4.50, 2.4.51 |
| Photon OS 4.0 | httpd, httpd-devel, httpd-docs und 1 weitere | 2.4.51-1.ph4 |
| alpine 3.11 | apache2 | 2.4.51-r0 |
| alpine 3.12 | apache2 | 2.4.51-r0 |
| alpine 3.13 | apache2 | 2.4.51-r0 |
| alpine 3.14 | apache2 | 2.4.51-r0 |
| alpine 3.15 | apache2 | 2.4.51-r0 |
| alpine 3.16 | apache2 | 2.4.51-r0 |
| alpine 3.17 | apache2 | 2.4.51-r0 |
| alpine 3.18 | apache2 | 2.4.51-r0 |
| alpine 3.19 | apache2 | 2.4.51-r0 |
| alpine 3.20 | apache2 | 2.4.51-r0 |
Alle 47 Einträge aus 25 Quellen zeigen
| Quelle | Paket | Behoben in |
|---|---|---|
| bitnami::Bitnami Vulnerability Database | apache | 2.4.50, 2.4.51 |
| 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 | 2.4.51-r0 |
| alpine 3.12 | apache2 | 2.4.51-r0 |
| alpine 3.13 | apache2 | 2.4.51-r0 |
| alpine 3.14 | apache2 | 2.4.51-r0 |
| alpine 3.15 | apache2 | 2.4.51-r0 |
| alpine 3.16 | apache2 | 2.4.51-r0 |
| alpine 3.17 | apache2 | 2.4.51-r0 |
| alpine 3.18 | apache2 | 2.4.51-r0 |
| alpine 3.19 | apache2 | 2.4.51-r0 |
| alpine 3.20 | apache2 | 2.4.51-r0 |
| alpine 3.21 | apache2 | 2.4.51-r0 |
| alpine 3.22 | apache2 | 2.4.51-r0 |
| alpine 3.23 | apache2 | 2.4.51-r0 |
| alpine 3.24 | apache2 | 2.4.51-r0 |
| alpine edge | apache2 | 2.4.51-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 |
| debian 12 | apache2 | 2.4.51-1 |
| debian 13 | apache2 | 2.4.51-1 |
| debian 14 | apache2 | 2.4.51-1 |
| echo | apache2 | 2.4.51-1 |
| root.io debian 12 | rootio-apache2 | 2.4.51-1 |
| root.io debian 13 | rootio-apache2 | 2.4.51-1 |
Referenzen
- http://jvn.jp/en/jp/JVN51106450/index.html
- http://packetstormsecurity.com/files/164501/Apache-HTTP-Server-2.4.50-Path-Traversal-Code-Execution.html
- http://packetstormsecurity.com/files/164609/Apache-HTTP-Server-2.4.50-Remote-Code-Execution.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://packetstormsecurity.com/files/165089/Apache-HTTP-Server-2.4.50-CVE-2021-42013-Exploitation.html
- http://packetstormsecurity.com/files/167397/Apache-2.4.50-Remote-Code-Execution.html
- http://www.openwall.com/lists/oss-security/2021/10/07/6
Alle 35 Referenzen
- http://www.openwall.com/lists/oss-security/2021/10/08/1
- 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-2021-42013
- 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/r7c795cd45a3384d4d27e57618a215b0ed19cb6ca8eb070061ad5d837@%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-2021-42013
- 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-2021-42013
- https://www.cve.org/CVERecord?id=CVE-2021-42013
- https://www.oracle.com/security-alerts/cpuapr2022.html
- https://www.oracle.com/security-alerts/cpujan2022.html
- https://www.povilaika.com/apache-2-4-50-exploit/