---
id: 5a85c5c1-5229-4525-a467-5d8497105d99
---

# Apache Clickjacking Protection Errors.
---

Apache Clickjacking Protection Errors refer to a security vulnerability in the Apache web server that allows an attacker to trick a user into clicking on a malicious link or button, leading to unintended actions or data theft. Clickjacking is a common attack technique used to exploit user interface design flaws and bypass web application security measures. The protection errors indicate that the web server is not properly configured to prevent clickjacking attacks, leaving it susceptible to exploitation. It is important to address this vulnerability quickly to prevent potential data breaches or other security incidents.

### Parameters
```shell
export PATH_TO_APACHE_CONFIG="PLACEHOLDER"

export PATH_TO_APACHE_ACCESS_LOG="PLACEHOLDER"

export PATH_TO_APACHE_ERROR_LOG="PLACEHOLDER"
```

## Debug

### Check Apache version
```shell
httpd -v
```

### Check Apache configuration for "X-Frame-Options" header
```shell
grep -i "x-frame-options" ${PATH_TO_APACHE_CONFIG}
```

### Check Apache configuration for "Content-Security-Policy" header
```shell
grep -i "content-security-policy" ${PATH_TO_APACHE_CONFIG}
```

### Check Apache access logs for clickjacking attempts
```shell
grep -i "clickjacking" ${PATH_TO_APACHE_ACCESS_LOG}
```

### Check Apache error logs for any relevant errors or warnings
```shell
tail -n 50 ${PATH_TO_APACHE_ERROR_LOG}
```

## Repair

### Configure the web server to send X-Frame-Options headers to prevent clickjacking attacks. This can be done by adding the following line to the Apache configuration file: "Header always append X-Frame-Options SAMEORIGIN".
```shell
bash

#!/bin/bash

APACHE_CONF="/etc/apache2/apache2.conf"

X_FRAME_OPTS="Header always append X-Frame-Options SAMEORIGIN"



# Check if Apache config file exists

if [ ! -f $APACHE_CONF ]; then

    echo "Error: Apache config file not found at $APACHE_CONF"

    exit 1

fi



# Check if X-Frame-Options are already set

if grep -q "X-Frame-Options" $APACHE_CONF; then

    echo "X-Frame-Options are already set in $APACHE_CONF"

    exit 0

fi



# Add X-Frame-Options to Apache config file

echo $X_FRAME_OPTS >> $APACHE_CONF



# Restart Apache server to apply changes

systemctl restart apache2


```

Apache Clickjacking Protection Errors refer to a security vulnerability in the Apache web server that allows an attacker to trick a user into clicking on a malicious link or button, leading to unintended actions or data theft. Clickjacking is a common attack technique used to exploit user interface design flaws and bypass web application security measures. The protection errors indicate that the web server is not properly configured to prevent clickjacking attacks, leaving it susceptible to exploitation. It is important to address this vulnerability quickly to prevent potential data breaches or other security incidents.


This incident type refers to frequent mismatches between the virtual hosts configured on an Apache server. This can cause issues with routing traffic to the intended web application or website, resulting in downtime or other problems. It is important to address these mismatches promptly to ensure the proper functioning of the server and any associated applications.


Virtual Host Mismatches on Apache Server.

This incident type refers to an unauthorized access to directories in Apache HTTPD, which is a widely used web server software. It means that someone was able to access files or directories that they were not supposed to, without having proper authorization. This type of incident can potentially lead to sensitive data being exposed or even stolen, and can compromise the security of the server and the applications running on it.


Unauthorized Directory Access in Apache HTTPD.

The Slowloris Attack is a type of Denial of Service (DoS) attack that exploits a vulnerability in the Apache web server. It works by sending HTTP requests to the server and keeping those connections open for as long as possible, thereby using up all the available resources of the server and rendering it unresponsive to legitimate requests. As a result, the server becomes slow or unresponsive, causing downtime for the affected website or service. This type of attack can be detected and mitigated by implementing specific security measures and tools.


Slowloris Attack Detected on Apache server.

This incident type refers to the detection of SQL injection attempts in Apache web server logs. SQL injection is a type of cyber attack that exploits vulnerabilities in web applications allowing attackers to execute malicious SQL statements. In this incident, attackers are attempting to inject SQL code into the URI (Uniform Resource Identifier) of an Apache web server, potentially compromising the server's security and exposing sensitive information.


Apache SQL Injection Attempts in URI Incident

This incident type refers to a problem with the load balancing functionality of the Apache HTTP server when using the mod\_jk connector. This can cause issues with distributing incoming traffic across multiple servers, resulting in reduced performance or even downtime for the affected services. It is important to address and resolve these issues as quickly as possible to minimize impact on users and ensure the stability of the system.


Mod_jk Load Balancing Issues in Apache HTTP.

```shell
export PATH_TO_APACHE_CONFIG="PLACEHOLDER"

export PATH_TO_APACHE_ACCESS_LOG="PLACEHOLDER"

export PATH_TO_APACHE_ERROR_LOG="PLACEHOLDER"
```


### Check Apache version

```shell
httpd -v
```

### Check Apache configuration for "X-Frame-Options" header

```shell
grep -i "x-frame-options" ${PATH_TO_APACHE_CONFIG}
```

### Check Apache configuration for "Content-Security-Policy" header

```shell
grep -i "content-security-policy" ${PATH_TO_APACHE_CONFIG}
```

### Check Apache access logs for clickjacking attempts

```shell
grep -i "clickjacking" ${PATH_TO_APACHE_ACCESS_LOG}
```

### Check Apache error logs for any relevant errors or warnings

```shell
tail -n 50 ${PATH_TO_APACHE_ERROR_LOG}
```


### Configure the web server to send X-Frame-Options headers to prevent clickjacking attacks. This can be done by adding the following line to the Apache configuration file: "Header always append X-Frame-Options SAMEORIGIN".

```shell
bash

#!/bin/bash

APACHE_CONF="/etc/apache2/apache2.conf"

X_FRAME_OPTS="Header always append X-Frame-Options SAMEORIGIN"



# Check if Apache config file exists

if [ ! -f $APACHE_CONF ]; then

    echo "Error: Apache config file not found at $APACHE_CONF"

    exit 1

fi



# Check if X-Frame-Options are already set

if grep -q "X-Frame-Options" $APACHE_CONF; then

    echo "X-Frame-Options are already set in $APACHE_CONF"

    exit 0

fi



# Add X-Frame-Options to Apache config file

echo $X_FRAME_OPTS >> $APACHE_CONF



# Restart Apache server to apply changes

systemctl restart apache2


```


Apache Clickjacking Protection Errors.

Overview

Parameters

Debug

Check Apache version

Check Apache configuration for "X-Frame-Options" header

Check Apache configuration for "Content-Security-Policy" header

Check Apache access logs for clickjacking attempts

Check Apache error logs for any relevant errors or warnings

Repair

Configure the web server to send X-Frame-Options headers to prevent clickjacking attacks. This can be done by adding the following line to the Apache configuration file: "Header always append X-Frame-Options SAMEORIGIN".

Learn more

Related Runbooks

Virtual Host Mismatches on Apache Server.

Unauthorized Directory Access in Apache HTTPD.

Slowloris Attack Detected on Apache server.

Apache SQL Injection Attempts in URI Incident

Support