| Amaury Denoyelle | 7ef244d | 2021-08-13 09:43:24 +0200 | [diff] [blame] | 1 | # This test ensures that h2 requests with invalid pseudo-headers are properly |
| 2 | # rejected. Also, the host header must be ignored if authority is present. This |
| 3 | # is necessary to avoid http/2 desync attacks through haproxy as described here |
| 4 | # https://portswigger.net/research/http2 |
| 5 | |
| 6 | varnishtest "h2 desync attacks" |
| 7 | feature ignore_unknown_macro |
| 8 | |
| 9 | server s1 { |
| 10 | rxreq |
| 11 | expect req.http.host == "hostname" |
| 12 | txresp |
| 13 | } -start |
| 14 | |
| 15 | # haproxy frontend |
| 16 | haproxy hap -conf { |
| 17 | defaults |
| 18 | mode http |
| 19 | |
| 20 | listen feSrvH1 |
| 21 | bind "fd@${feSrvH1}" |
| 22 | http-request return status 200 |
| 23 | |
| 24 | listen feSrvH2 |
| 25 | bind "fd@${feSrvH2}" proto h2 |
| 26 | http-request return status 200 |
| 27 | |
| 28 | listen fe1 |
| 29 | bind "fd@${fe1}" proto h2 |
| 30 | server srv-hapSrv "${hap_feSrvH1_addr}:${hap_feSrvH1_port}" |
| 31 | |
| 32 | listen fe2 |
| 33 | bind "fd@${fe2}" proto h2 |
| 34 | server srv-hapSrv "${hap_feSrvH2_addr}:${hap_feSrvH2_port}" proto h2 |
| 35 | |
| 36 | listen fe3 |
| 37 | bind "fd@${fe3}" proto h2 |
| 38 | server s1 "${s1_addr}:${s1_port}" |
| 39 | } -start |
| 40 | |
| 41 | # valid request |
| 42 | client c1 -connect ${hap_fe1_sock} { |
| 43 | txpri |
| 44 | stream 0 { |
| 45 | txsettings |
| 46 | rxsettings |
| 47 | txsettings -ack |
| 48 | rxsettings |
| 49 | expect settings.ack == true |
| 50 | } -run |
| 51 | |
| 52 | stream 1 { |
| 53 | txreq \ |
| 54 | -method "GET" \ |
| 55 | -scheme "http" \ |
| 56 | -url "/" |
| 57 | rxresp |
| 58 | expect resp.status == 200 |
| 59 | } -run |
| 60 | } -run |
| 61 | |
| 62 | # valid request |
| 63 | client c2 -connect ${hap_fe2_sock} { |
| 64 | txpri |
| 65 | stream 0 { |
| 66 | txsettings |
| 67 | rxsettings |
| 68 | txsettings -ack |
| 69 | rxsettings |
| 70 | expect settings.ack == true |
| 71 | } -run |
| 72 | |
| 73 | stream 1 { |
| 74 | txreq \ |
| 75 | -method "GET" \ |
| 76 | -scheme "http" \ |
| 77 | -url "/" |
| 78 | rxresp |
| 79 | expect resp.status == 200 |
| 80 | } -run |
| 81 | } -run |
| 82 | |
| 83 | # invalid path |
| 84 | client c3-path -connect ${hap_fe1_sock} { |
| 85 | txpri |
| 86 | stream 0 { |
| 87 | txsettings |
| 88 | rxsettings |
| 89 | txsettings -ack |
| 90 | rxsettings |
| 91 | expect settings.ack == true |
| 92 | } -run |
| 93 | |
| 94 | stream 1 { |
| 95 | txreq \ |
| 96 | -method "GET" \ |
| 97 | -scheme "http" \ |
| 98 | -url "hello-world" |
| 99 | rxrst |
| 100 | } -run |
| 101 | } -run |
| 102 | |
| 103 | # invalid scheme |
| 104 | client c4-scheme -connect ${hap_fe1_sock} { |
| 105 | txpri |
| 106 | stream 0 { |
| 107 | txsettings |
| 108 | rxsettings |
| 109 | txsettings -ack |
| 110 | rxsettings |
| 111 | expect settings.ack == true |
| 112 | } -run |
| 113 | |
| 114 | stream 1 { |
| 115 | txreq \ |
| 116 | -method "GET" \ |
| 117 | -scheme "http://localhost/?" \ |
| 118 | -url "/" |
| 119 | rxresp |
| 120 | expect resp.status == 400 |
| 121 | } -run |
| 122 | } -run |
| 123 | |
| 124 | # invalid method |
| 125 | client c5-method -connect ${hap_fe2_sock} { |
| 126 | txpri |
| 127 | stream 0 { |
| 128 | txsettings |
| 129 | rxsettings |
| 130 | txsettings -ack |
| 131 | rxsettings |
| 132 | expect settings.ack == true |
| 133 | } -run |
| 134 | |
| 135 | stream 1 { |
| 136 | txreq \ |
| 137 | -method "GET?" \ |
| 138 | -scheme "http" \ |
| 139 | -url "/" |
| 140 | rxresp |
| 141 | expect resp.status == 400 |
| 142 | } -run |
| 143 | } -run |
| 144 | |
| 145 | # different authority and host headers |
| 146 | # in this case, host should be ignored in favor of the authority |
| 147 | client c6-host-authority -connect ${hap_fe3_sock} { |
| 148 | txpri |
| 149 | stream 0 { |
| 150 | txsettings |
| 151 | rxsettings |
| 152 | txsettings -ack |
| 153 | rxsettings |
| 154 | expect settings.ack == true |
| 155 | } -run |
| 156 | |
| 157 | stream 1 { |
| 158 | txreq \ |
| 159 | -method "GET" \ |
| 160 | -scheme "http" \ |
| 161 | -url "/" \ |
| 162 | -hdr ":authority" "hostname" \ |
| 163 | -hdr "host" "other_host" |
| 164 | } -run |
| 165 | } -run |
| 166 | |
| 167 | server s1 -wait |