From 79ee5915b458e31e9582061bf0a5d67de8931672 Mon Sep 17 00:00:00 2001
From: Lion Kortlepel <development@kortlepel.com>
Date: Thu, 10 Nov 2022 18:50:58 +0100
Subject: [PATCH] fix unhandled out of bounds in Authentication

---
 src/TNetwork.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/TNetwork.cpp b/src/TNetwork.cpp
index 3b4d9df..593f62b 100644
--- a/src/TNetwork.cpp
+++ b/src/TNetwork.cpp
@@ -277,7 +277,11 @@ std::shared_ptr<TClient> TNetwork::Authentication(TConnection&& RawConnection) {
             for (const auto& ID : AuthRes["identifiers"]) {
                 auto Raw = std::string(ID);
                 auto SepIndex = Raw.find(':');
-                Client->SetIdentifier(Raw.substr(0, SepIndex), Raw.substr(SepIndex + 1));
+                if (SepIndex != std::string::npos) {
+                    Client->SetIdentifier(Raw.substr(0, SepIndex), Raw.substr(SepIndex + 1));
+                } else {
+                    beammp_errorf("Invalid response from auth servers: No ':' in identifier '{}', ignoring it", Raw);
+                }
             }
         } else {
             beammp_error("Invalid authentication data received from authentication backend");