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Forum Discussion

Bubbagump_12531's avatar
Bubbagump_12531
Icon for Nimbostratus rankNimbostratus
Oct 30, 2013

Prevent X-Forwarded-For spoofing

We insert an X-Forwarded-For header to pass back to our web servers. One application we have looks to this header to allow or deny certain servers access to us. However, we want to prevent spoofing t...
application delivery
deployment
devops
iRules
security
Bubbagump_12531's avatar
Bubbagump_12531
Icon for Nimbostratus rankNimbostratus
Oct 30, 2013

Yes, that is exactly right. I am using a spoofing plugin via Firefox to insert a spoofed X-Forwarded-For header. Then, in sniffing the traffic coming from the F5, the spoofed headers are still there and Apache is happy to log them. So my machine at 192.168.x.x shows up via X-Forwarded-For as my spoofed IP 1.2.3.4

 

What_Lies_Bene1's avatar
What_Lies_Bene1
Icon for Cirrostratus rankCirrostratus
Oct 30, 2013
Perhaps line 5 should be 'insert'?