Is the Apache web server vulnerable to attack?

Is the Apache web server vulnerable to attack?

A practical guide to secure and harden Apache HTTP Server. The Web Server is a crucial part of web-based applications. Apache Web Server is often placed at the edge of the network hence it becomes one of the most vulnerable services to attack.

What are the most common web application attacks?

The majority of web application attacks are through XSS, Info Leakage, Session Management and SQL Injection attacks which are due to weak programming code and failure to sanitize web application infrastructure. Interesting research by Positive Technologies reveals, 52% of the scanned application had high vulnerabilities.

When is Apache web server hardening and Security Guide?

TRACE / HTTP/1.1 Host: test HTTP/1.1 200 OK Date: Sat, 31 Aug 2013 02:13:24 GMT Server: Apache Transfer-Encoding: chunked Content-Type: message/http 20 TRACE / HTTP/1.1 Host: test 0 Connection closed by foreign host. As you could see in above TRACE request, it has responded my query.

How can I protect my Apache web server?

There are a couple of solutions for Apache Web servers that can limit the harm done by excess traffic and application attacks. Some of these, such as ModSecurity, will filter malicious traffic, whereas other solutions will block traffic on a network level (Fail2ban) or application level (mod_evasive).

How to prevent DDoS attacks on Apache servers?

Another best way to prevent Apache DDoS problems is by using load balancers such as HAProxy. At Bobcares, our Server Administration Team help server owners setup load balancers on their servers. In addition to that, we limit the number of connections per user, limit the HTTP request rate, etc. to mitigate DDoS attacks on web servers.

How can I protect my website from attacks?

If a software or dedicated hardware firewall isn’t available by your host, you can always harden Apache on your web server, which will prevent help your server identify and automatically block malicious connections like these. You’ll want to install the mod_reqtimeout module for Apache, documented here.

Is there a slow get / post vulnerability in Apache?

It takes advantage of a vulnerability in thread-based web servers, which wait for entire HTTP headers to be received before releasing the open connection. A variation of this vulnerability is the slow HTTP POST vulnerability.

Which is version of Apache server is affected?

The versions affected by this vulnerability are Apache HTTP Server 2.2.0 to 2.2.32 and Apache HTTP Server 2.4.0 to 2.4.25 The vulnerability stems from the improper use of the ap_get_basic_auth_pw () function of Apache HTTP server by third-party modules outside the authentication phase of the affected software.

Which is vulnerable to the slow http DoS attack?

Slow HTTP DoS (Slowloris) attacks are denial-of-service attacks against web servers that cause a large number of open connections by keeping HTTP requests open for a long time. Thread-based servers such as Apache and Microsoft IIS are vulnerable to Slowloris but event-based servers such as nginx are not.

How to remove version information from Apache website?

Add the following directive and save the httpd.conf ServerSignature will remove the version information from the page generated by Apache. ServerTokens will change Header to production only, i.e., Apache As you can see below, version & OS information is gone.

How is mod ssl used in Apache expr?

When mod_ssl is built into Apache or at least loaded (under DSO situation) any variables provided by mod_ssl can be used in expressions for the ap_expr Expression Parser . The variables can be referenced using the syntax “ % {varname} ”.