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Log4Shell ( CVE-2021-44228) is a zero-day vulnerability in Log4j, a popular Java logging framework, involving arbitrary code execution. [2] [3] The vulnerability had existed unnoticed since 2013 and was privately disclosed to the Apache Software Foundation, of which Log4j is a project, by Chen Zhaojun of Alibaba Cloud 's security team on 24 ...
Security documentation for the widely used Apache web server states: "CGI scripts can ... be extremely dangerous if they are not carefully checked," and other methods of handling web server requests are typically used instead. There are a number of online services which attempt to test the vulnerability against web servers exposed to the Internet.
ModSecurity. ModSecurity, sometimes called Modsec, is an open-source web application firewall (WAF). Originally designed as a module for the Apache HTTP Server, it has evolved to provide an array of Hypertext Transfer Protocol request and response filtering capabilities along with other security features across a number of different platforms ...
The Apache HTTP Server ( / əˈpætʃi / ə-PATCH-ee) is a free and open-source cross-platform web server software, released under the terms of Apache License 2.0. It is developed and maintained by a community of developers under the auspices of the Apache Software Foundation . The vast majority of Apache HTTP Server instances run on a Linux ...
This is specifically forbidden by the UTF-8 standard, but has still led to directory traversal vulnerabilities in software such as the IIS web server. Archives. Some archive formats like zip allow for directory traversal attacks: files in the archive can be written such that they overwrite files on the filesystem by backtracking. Code that ...
Website. www .zaproxy .org. ZAP (short for Zed Attack Proxy), formerly known as OWASP ZAP, is an open-source web application security scanner . It is intended to be used by both those new to application security as well as professional penetration testers. It has been one of the most active Open Worldwide Application Security Project ( OWASP ...
In the Apache web server, a number of modules can be used to limit the damage caused by the Slowloris attack; the Apache modules mod_limitipconn, mod_qos, mod_evasive, mod security, mod_noloris, and mod_antiloris have all been suggested as means of reducing the likelihood of a successful Slowloris attack.
HTTP. HTTP Parameter Pollution ( HPP) is a web application vulnerability exploited by injecting encoded query string delimiters in already existing parameters. The vulnerability occurs if user input is not correctly encoded for output by a web application. [1] This vulnerability allows the injection of parameters into web application-created URLs.