Insufficient sanitization of arguments passed to rsync can bypass the restrictions imposed by rssh, a restricted shell that should restrict users to perform only rsync operations, resulting in the execution of arbitrary shell commands.

Insufficient sanitization of environment variables passed to rsync can bypass the restrictions imposed by rssh, a restricted shell that should restrict users to perform only rsync operations, resulting in the execution of arbitrary shell commands.

rssh version 2.3.4 contains a CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection') vulnerability in allowscp permission that can result in Local command execution. This attack appear to be exploitable via An authorized SSH user with the allowscp permission.

rssh 2.3.2, as used by Debian, Fedora, and others, when the rsync protocol is enabled, allows local users to bypass intended restricted shell access via a (1) "-e" or (2) "--" command line option.

Incomplete blacklist vulnerability in rssh before 2.3.4, when the rsync protocol is enabled, allows local users to bypass intended restricted shell access via the --rsh command line option.

rssh 2.3.3 and earlier allows local users to bypass intended restricted shell access via crafted environment variables in the command line.

Format string vulnerability in log.c in rssh before 2.2.2 allows remote authenticated users to execute arbitrary code.