one with configured forced-commands - to bypassĪccount restriction. Leveraged by an authenticated restricted user - e.g. Information leakage or xauth-connect capabilities. Disabling it, mitigates this vector.īy injecting xauth commands one gains limited* read/write arbitrary files, The server to have 'X11Forwarding yes' enabled. The newline acts as a command separator to the xauth binary. X11 channel request that includes a newline character in the x11 cookie. Dropbear is particularly useful for "embedded"-type Linux (or other Unix) systems, such as wireless routers.Īn authenticated user may inject arbitrary xauth commands by sending an Dropbear is open source software, distributed under a MIT-style license. It runs on a variety of POSIX-based platforms. Other Versions: Dropbear is a relatively small SSH server and client. Tag: dropbearsshd xauth command injection may lead to forced-command bypass
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