How to disable SSLCompression on Apache httpd 2.2.15?
- by Stefan Lasiewski
I read about the CRIME attack against TLS Compression (CRIME is a successor to the BEAST attack against ssl & tls), and I want to protect my webservers against this attack by disabling SSL Compression, which was added to Apache 2.2.22 (See Bug 53219).
I am running Scientific Linux 6.1, which ships with httpd-2.2.15. Security fixes for upstream versions of httpd 2.2 should be backported to this version.
# rpm -q httpd
httpd-2.2.15-15.sl6.1.x86_64
# httpd -V
Server version: Apache/2.2.15 (Unix)
Server built: Feb 14 2012 09:47:14
Server's Module Magic Number: 20051115:24
Server loaded: APR 1.3.9, APR-Util 1.3.9
Compiled using: APR 1.3.9, APR-Util 1.3.9
I tried SSLCompression off in my configuration, but that results in the following error message:
# /etc/init.d/httpd restart
Stopping httpd: [ OK ]
Starting httpd: Syntax error on line 147 of /etc/httpd/httpd.conf:
Invalid command 'SSLCompression', perhaps misspelled or defined by a module not included in the server configuration
[FAILED]
Is it possible to disable SSLCompression with this version of Apache Webserver?
