[squid-users] Require SSL version 3

Hello all,

I have a client that is requiring the use of only SSL version 3 for their
websites. When a vulnerability scan is done by an outside firm against
squid, the report states that SSLV2 is allowed and we can't have that.

I went to the
http://www.squid-cache.org/Versions/v2/2.6/cfgman/https_port.html page and
tried appending the option "version=3" to the end of my https_port line
for one of the sites (see below), but after I do this, I cannot view the
https portion of the site. It tells me that the page was interrupted. If
I remove the version=3 line, I am fine.

What do I need to do to make each of the sites below only accept SSLV3
connections? Any help would be appreciated.

# Run Squid in virtual host mode
http_port 80 vhost

# Client1 reverse proxy config
https_port 172.16.0.107:443 protocol=https vhost
cert=/usr/local/squid/etc/devstore.pem
key=/usr/local/squid/etc/devstore.key version=3
cache_peer 192.168.0.7 parent 80 0 no-query originserver
name=store.client1.com
#acl client1 dstdomain store.client1.com
acl client1 dstdomain xxx.xxx.xxx.xxx store.client1.com
http_access allow client1
cache_peer_access store.client1.com allow client1

# Client2 reverse proxy config
https_port 172.16.0.111:443 protocol=https
cert=/usr/local/squid/etc/ctccert.pem key=/usr/local/squid/etc/ctccert.key
vhost
cache_peer 192.168.0.11 parent 80 0 no-query originserver
name=store.client2.com
acl client2 dstdomain xxx.xxx.xxx.xxx store.client2.com
http_access allow client2
cache_peer_access store.client2.com allow client2

# Client3 reverse proxy config
https_port 172.16.0.105:443 protocol=https
cert=/usr/local/squid/etc/devstore.pem
key=/usr/local/squid/etc/devstore.key vhost
cache_peer 192.168.0.05 parent 80 0 no-query originserver
name=store.client3.com
acl client3 dstdomain store.client3.com
http_access allow client3
cache_peer_access store.client3.com allow client3

# Client4 reverse proxy config
https_port 172.16.0.106:443 protocol=https
cert=/usr/local/squid/etc/cycert.pem key=/usr/local/squid/etc/cycert.key
vhost
cache_peer 192.168.0.06 parent 80 0 no-query originserver
name=store.client4.com
acl client4 dstdomain store.client4.com
http_access allow client4
cache_peer_access store.client4.com allow client4

# Client5 reverse proxy config
https_port 172.16.0.120:443 protocol=https
cert=/usr/local/squid/etc/opaccess.pem
key=/usr/local/squid/etc/opaccess.key vhost
cache_peer 192.168.0.20 parent 443 0 no-query originserver ssl
name=store.client5.com
acl client5 dstdomain store.client5.com
http_access allow client5
cache_peer_access store.client5.com allow client5

# --- Begin default config options --- #

hierarchy_stoplist cgi-bin ?

acl QUERY urlpath_regex cgi-bin \?
cache deny QUERY

acl apache rep_header Server ^Apache
broken_vary_encoding allow apache

access_log /usr/local/squid/var/logs/access.log squid

refresh_pattern ^ftp: 1440 20% 10080
refresh_pattern ^gopher: 1440 0% 1440
refresh_pattern . 0 20% 4320

acl all src 0.0.0.0/0.0.0.0
acl manager proto cache_object
acl localhost src 127.0.0.1/255.255.255.255
acl to_localhost dst 127.0.0.0/8
acl SSL_ports port 443
acl Safe_ports port 80 # http
acl Safe_ports port 21 # ftp
acl Safe_ports port 443 # https
acl Safe_ports port 70 # gopher
acl Safe_ports port 210 # wais
acl Safe_ports port 1025-65535 # unregistered ports
acl Safe_ports port 280 # http-mgmt
acl Safe_ports port 488 # gss-http
acl Safe_ports port 591 # filemaker
acl Safe_ports port 777 # multiling http
acl CONNECT method CONNECT
acl TRACE method TRACE

# Deny HTTP TRACE method
http_access deny TRACE
# Only allow cachemgr access from localhost
http_access allow manager localhost
http_access deny manager
# Deny requests to unknown ports
http_access deny !Safe_ports
# Deny CONNECT to other than SSL ports
http_access deny CONNECT !SSL_ports
# INSERT YOUR OWN RULE(S) HERE TO ALLOW ACCESS FROM YOUR CLIENTS

# And finally deny all other access to this proxy
http_access deny all

# and finally allow by default
http_reply_access allow all

#Allow ICP queries from everyone
icp_access allow all

# Leave coredumps in the first cache dir
coredump_dir /usr/local/squid/var/cache

Thanks,

Jack Siergiej
Received on Mon Jan 14 2008 - 06:20:10 MST