D-Link router DSL-2750B firmware 1.01 to 1.03 – remote command execution no auth required
Details of BNVL-2018-0034
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Name : D-Link router DSL-2750B firmware 1.01 to 1.03 – remote command execution no auth required
Related Links: http://seclists.org/fulldisclosure/2016/Feb/53
CVE ID: Na
Arguments of “cli” parameter are passed directly to a binary that will
execute that particular given command; the complete list of commands
available are inside “/etc/ayecli/ayecli.cli” file. (among them there’s
a creepy “system halt” that will shutdown the router no matter what).
Arguments are passed in a way that
ayecli -c ‘command-here’ so
the way to escape is to close, add a command and close again to
neutralize “$” substitution with ‘ :
ayecli -c ‘command’;injection”