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allow Host header with explicit :80 included #912

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merged 1 commit into from Apr 12, 2022
Merged

allow Host header with explicit :80 included #912

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2 changes: 1 addition & 1 deletion server/ec2server.go
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Expand Up @@ -81,7 +81,7 @@ func withSecurityChecks(next *http.ServeMux) http.HandlerFunc {
// Check that the request is to 169.254.169.254
// Without this it's possible for an attacker to mount a DNS rebinding attack
// See https://github.com/99designs/aws-vault/issues/578
if r.Host != ec2MetadataEndpointIP {
if r.Host != ec2MetadataEndpointIP && r.Host != ec2MetadataEndpointAddr {
http.Error(w, fmt.Sprintf("Access denied for host '%s'", r.Host), http.StatusUnauthorized)
return
}
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