CVE-2018-19518 – PHP imap_open - Remote Code Execution

https://notcve.org/view.php?id=CVE-2018-19518

25 Nov 2018 — University of Washington IMAP Toolkit 2007f on UNIX, as used in imap_open() in PHP and other products, launches an rsh command (by means of the imap_rimap function in c-client/imap4r1.c and the tcp_aopen function in osdep/unix/tcp_unix.c) without preventing argument injection, which might allow remote attackers to execute arbitrary OS commands if the IMAP server name is untrusted input (e.g., entered by a user of a web application) and if rsh has been replaced by a program with different argument semantics.... • https://www.exploit-db.com/exploits/45914 • CWE-88: Improper Neutralization of Argument Delimiters in a Command ('Argument Injection') •