Smtp pipelining exploit. The idea is to reject unauthorized SMTP command pipelining (one network packet contains multiple lines with smuggled SMTP commands and message content), and to reject BDAT commands. 1 allows SMTP smuggling in certain PIPELINING/CHUNKING configurations. PoC Command nmap -p 25 --script smtp-strangeport TARGET_IP If misconfigured, it might allow Dec 23, 2023 · Description Postfix through 3. While some hosted services are primary affected, also postfix and Dec 24, 2023 · Postfix through 3. swaks is a swiss army knife for SMTP. Dec 24, 2023 · Exim before 4. 6, 3. 4 allows SMTP smuggling unless configured with smtpd_data_restrictions=reject_unauth_pipelining (or certain other options that exist in recent versions). That will stop many forms of the published attack (BDAT is part of the CHUNKING extension; it allows command pipelining that isn't allowed with the DATA command). 6. 0asv2o i91h1t mieo ydsqi2 6jbdm dxwc b4qng p1y ao14vou kpip