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Nginx Improper Neutralization of Special Elements used in a Command (Command Injection) Vulnerability - CVE-2014-3556 - Vulnerability Database
Nginx

Nginx Improper Neutralization of Special Elements used in a Command (Command Injection) Vulnerability - CVE-2014-3556

Medium
Reference: CVE-2014-3556
NVD Link: https://nvd.nist.gov/vuln/detail/CVE-2014-3556
Title: Nginx Improper Neutralization of Special Elements used in a Command (Command Injection) Vulnerability
Overview:

The STARTTLS implementation in mail/ngx_mail_smtp_handler.c in the SMTP proxy in nginx 1.5.x and 1.6.x before 1.6.1 and 1.7.x before 1.7.4 does not properly restrict I/O buffering which allows man-in-the-middle attackers to insert commands into encrypted SMTP sessions by sending a cleartext command that is processed after TLS is in place related to a quotplaintext command injectionquot attack a similar issue to CVE-2011-0411.