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Test ID:1.3.6.1.4.1.25623.1.0.146871
Category:Web Servers
Title:Apache HTTP Server 2.4.49 - 2.4.50 Directory Traversal / RCE Vulnerability - Active Check
Summary:Apache HTTP Server is prone to a directory traversal; and a possible remote code execution (RCE) vulnerability.
Description:Summary:
Apache HTTP Server is prone to a directory traversal
and a possible remote code execution (RCE) vulnerability.

Vulnerability Insight:
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.

Note: If 'mod_cgi' is enabled this flaw can be also be used by an attacker to achieve remote code
execution (RCE).

Affected Software/OS:
Apache HTTP Server version 2.4.49 through 2.4.50.

Solution:
Update to version 2.4.51 or later.

CVSS Score:
7.5

CVSS Vector:
AV:N/AC:L/Au:N/C:P/I:P/A:P

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2021-42013
Cisco Security Advisory: 20211007 Apache HTTP Server Vulnerabilties: October 2021
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-httpd-pathtrv-LAzg68cZ
https://security.netapp.com/advisory/ntap-20211029-0009/
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://security.gentoo.org/glsa/202208-20
http://jvn.jp/en/jp/JVN51106450/index.html
http://packetstormsecurity.com/files/167397/Apache-2.4.50-Remote-Code-Execution.html
https://www.povilaika.com/apache-2-4-50-exploit/
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
https://httpd.apache.org/security/vulnerabilities_24.html
https://www.oracle.com/security-alerts/cpuapr2022.html
https://www.oracle.com/security-alerts/cpujan2022.html
https://lists.apache.org/thread.html/r7c795cd45a3384d4d27e57618a215b0ed19cb6ca8eb070061ad5d837@%3Cannounce.apache.org%3E
https://lists.apache.org/thread.html/r17a4c6ce9aff662efd9459e9d1850ab4a611cb23392fc68264c72cb3@%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/rb5b0e46f179f60b0c70204656bc52fcb558e961cb4d06a971e9e3efb@%3Cusers.httpd.apache.org%3E
http://www.openwall.com/lists/oss-security/2021/10/07/6
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
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