Always check for valid HTTP method before any modifications

8 years ago · c721ab0506
1 changed files with 2 additions and 1 deletions
--- a/goodbyedpi.c
+++ b/goodbyedpi.c
@ -273,7 +273,8 @@ int main(int argc, char *argv[]) {
                }
                /* Handle OUTBOUND packet, search for Host header */
                else if (addr.Direction == WINDIVERT_DIRECTION_OUTBOUND && 
-                         packet_dataLen > 16 && ppTcpHdr->DstPort == htons(80) &&
+                        packet_dataLen > 16 && ppTcpHdr->DstPort == htons(80) &&
+                        find_http_method_end(packet_data) &&
                        (do_host || do_host_removespace)) {

                    data_addr = find_host_header(packet_data, packet_dataLen);