Ftp Server Security Vulnerabilities - November

CVE-2021-41634

A user enumeration vulnerability in MELAG FTP Server 2.2.0.4 allows an attacker to identify valid FTP usernames.

CVE-2021-41635

When installed as Windows service MELAG FTP Server 2.2.0.4 is run as SYSTEM user, which grants remote attackers to abuse misconfigurations or vulnerabilities with administrative access over the entire host system.

CVE-2021-41636

MELAG FTP Server 2.2.0.4 allows an attacker to use the CWD command to break out of the FTP servers root directory and operate on the entire operating system, while the access restrictions of the user running the FTP server apply.

CVE-2021-41637

Weak access control permissions in MELAG FTP Server 2.2.0.4 allow the "Everyone" group to read the local FTP configuration file, which includes among other information the unencrypted passwords of all FTP users.

CVE-2021-41638

The authentication checks of the MELAG FTP Server in version 2.2.0.4 are incomplete, which allows a remote attacker to access local files only by using a valid username.

CVE-2021-41639

MELAG FTP Server 2.2.0.4 stores unencrpyted passwords of FTP users in a local configuration file.