From c1848a997cca9e0063f0e77eaa9a8f16705c642e Mon Sep 17 00:00:00 2001
From: Jacob <jacob@skrepr.com>
Date: Thu, 28 May 2020 22:54:20 +0200
Subject: [PATCH] First check $ prefix

---
 server/auth.go | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/server/auth.go b/server/auth.go
index 33a8c825..b36eb6f4 100644
--- a/server/auth.go
+++ b/server/auth.go
@@ -733,7 +733,11 @@ var validBcryptPrefix = regexp.MustCompile(`^\$2[a,b,x,y]{1}\$\d{2}\$.*`)
 
 // isBcrypt checks whether the given password or token is bcrypted.
 func isBcrypt(password string) bool {
-	return validBcryptPrefix.MatchString(password)
+	if strings.HasPrefix(password, "$") {
+		return validBcryptPrefix.MatchString(password)
+	}
+
+	return false
 }
 
 func comparePasswords(serverPassword, clientPassword string) bool {