QID 150373

Date Published: 2021-10-19

QID 150373: Apache HTTP Server Remote Code Execution (CVE-2021-41773)

The Apache HTTP Server, colloquially called Apache, is a free and open-source cross-platform web server software.

The affected version of the Apache server allows remote attackers to read files via a Path Traversal vulnerability. This vulnerability only impacts Apache HTTP Server version 2.4.49 with the Require all denied access control configuration disabled. When mod_cgi module is enabled for these aliased paths, it leads to Remote Code Execution on the target server.

QID Detection Logic (Unauthenticated) :
This QID sends a crafted HTTP POST request to /bin/sh with payload to check if the target is exploitable.

Successful exploitation of the vulnerability will allow remote attacker to execute arbitrary code on the target system.

CVSS V3 rated as High - 7.5 severity.

CVSS V2 rated as Medium - 4.3 severity.

Solution

Customers are advised to update to Apache HTTP Server. For more information refer to Apache HTTP Server

Vendor References

Apache HTTP Server - httpd.apache.org/security/vulnerabilities_24.html

CVEs related to QID 150373

CVE-2021-41773 |

Software Advisories

Advisory ID	Software	Component	Link
Apache HTTP Server			httpd.apache.org/download.cgi

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