OGH DBA Dag 14 september 2010 Frits Hoogland

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Example: incorrect config We got a host: oel5-http / 10.0.1.12 This host has a webserver at 7777/tcp– Default port of an ohs version 11.1 on linux Open ports:vxlt090101:~ fritshoogland$ nmap 10.0.1.12 -PNStarting Nmap 4.85BETA8 ( http://nmap.org ) at 2010-05-04 14:49 CESTInteresting ports on 10.0.1.12:Not shown: 999 filtered portsPORT STATE SERVICE7777/tcp open unknownNmap done: 1 IP address (1 host up) scanned in 25.92 seconds28Tuesday, September 14, 2010
Example: incorrect config The host and webserver was hardened. Some administrator tried to configuresomething in apache, and added to httpd.conf:ProxyRequests OnProxyVia OnAllowCONNECT 25 22 80 443– Probably to use some proxy functionality– Application keeps functioning correctly- Let’s see what this introduces...29Tuesday, September 14, 2010
Page 1: Oracle HTTP serversecurityOGH DBA D
Page 7 and 8: Firewall!7Tuesday, September 14, 20
Page 9 and 10: Firewallhost.example.comFirewallhos
Page 11 and 12: Firewall Examples of firewalls:- PI
Page 13 and 14: Architecturehost.example.comhost.dm
Page 15 and 16: Webserver Clients communicate with
Page 17 and 18: Tuesday, September 14, 201017
Page 19 and 20: Figure 6 shows the change over time
Page 26 and 27: How to harden? Webserver scanner: N
Page 33 and 34: HTTPSQ: Does HTTPS make your site m
Page 37 and 38: HTTPS HTTPS encrypts communication-
Page 39 and 40: Scanning yourself To harden for the
Page 41 and 42: Information spilling- To ‘Prod’
Page 43 and 44: Information spilling No guarantee,
Page 45 and 46: Information spilling Web cache mana
Page 47 and 48: Ports < 1024 On Linux/Unix requires
Page 49 and 50: mod_security Apache module- Functio
Page 51 and 52: mod_security It’s easy to add mod
Page 53 and 54: mod_security Some of the rules it t
Page 55 and 56: Q & AThank you for attending!55Tues
Page 57 and 58: Bibliography & Links hping (packet

OGH DBA Dag 14 september 2010 Frits Hoogland

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