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Getting Root With Cleaner Wrasse
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An example of using Cleaner Wrasse to enable the backdoor on MikroTik RouterOS 6.41.4.
You can see I try to login as devel but it fails. I then user Clean Wrasse and Hacker Fantastic's set tracefile vulnerability to create the file /pckg/option, which then allows me to login as devel and get the root shell.
With my shell, I delete the /pckg/option file and log out. After that I'm no longer able to login again because the existence of /pckg/option enables the backdoor on this version.
You can see I try to login as devel but it fails. I then user Clean Wrasse and Hacker Fantastic's set tracefile vulnerability to create the file /pckg/option, which then allows me to login as devel and get the root shell.
With my shell, I delete the /pckg/option file and log out. After that I'm no longer able to login again because the existence of /pckg/option enables the backdoor on this version.