Summary #

Netsparker identified that the target web server is disclosing the mod_ssl version in its HTTP response. This information might help an attacker gain a greater understanding of the systems in use and potentially develop further attacks targeted at the specific version of mod_ssl.

Impact #
An attacker might use the disclosed information to harvest specific security vulnerabilities for the version identified.
Remediation #
Configure your web server to prevent information leakage from the SERVER header of its HTTP response. To apply configuration, first make sure you have headers_module installed.

Add the following line to load the headers module in the httpd.conf

LoadModule headers_module modules/mod_headers.so 
    
After headers_module is loaded, edit or include the following lines of config in the httpd.conf
ServerSignature Off
ServerTokens Prod
        
<IfModule mod_headers.c>  
    Header unset Server  
</IfModule>
    
Classifications #
CAPEC-170, CWE-205, HIPAA-205, ISO27001-A.18.1.3, WASC-45, OWASP 2013-A5, OWASP 2017-A6
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