: This can lead to remote code execution (RCE) or a denial of service (DoS) by corrupting heap memory. mod_proxy_wstunnel (Tunneling Misconfiguration) : Vulnerability : CVE-2019-17567 .
(mod_proxy SSRF): A request-smuggling-like flaw in mod_proxy allows a crafted request to forward requests to an arbitrary origin server. This affects 2.4.48 and earlier, including 2.4.46. Impact : Server-side request forgery, potentially exposing internal services.
Apache HTTP Server version 2.4.46 is susceptible to several critical vulnerabilities, with the most notable "feature" involved in exploits being the and mod_proxy_wstunnel modules. Key Exploitable Features and Vulnerabilities apache httpd 2.4.46 exploit
Exploiting this vulnerability typically involves crafting a malicious URL that, when accessed, allows the attacker to navigate the server's file system. For example, an attacker might use URL encoding to bypass security filters and access sensitive files.
The following modules and features are the primary vectors for exploits in version 2.4.46: : Vulnerability : CVE-2021-26691 . : This can lead to remote code execution
: Unexpected URL matching behavior occurs when MergeSlashes is set to OFF , potentially leading to security bypasses in access control. Remediation
POST /cgi-bin/.%2e/bin/bash HTTP/1.1 Host: vulnerable-server.com Content-Type: application/x-www-form-urlencoded This affects 2
The discovery of CVE-2021-41773 and CVE-2021-42013 in Apache httpd underscores the importance of keeping server software up to date to protect against potential exploits. By understanding the nature of these vulnerabilities and taking steps to mitigate them, system administrators and organizations can significantly reduce the risk of their servers being compromised.