This is the browser taking our youtube video id (#ytid), attaching it to the youtube URL and then sending it to the root folder of the web server (the / just after .post at the start).

The Centro-Matic® Lubrication System can service one machine, different zones on machines, or even several separate machines, and is ideal when the volume of lubricant varies for each point. Each injector serves only one lubrication point and may be accurately adjusted to deliver the precise amount of grease or oil required.

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I will say up front, the tool pspy is required, which can be git cloned from here and then built (if my memory is right) with the go install pspy64@latest command. I had to actually rebuild it a second time with CGO_ENABLED=0 go build -o pspy64_static main.go due to issues with libraries after I transferred it onto the target machine.

Automatic grease systemfittings

Once I had this I tried using more complicated commands, such as trying to use netcat to call back to our machine, however I kept running into issues with the command getting snapped into bits by the script.

Next, navigate to the main website and get the script running (by inputting a fake youtube ID and hit convert), pspy should then populate with what commands are running on the system.

Lincoln QLS Automatic Lubrication System The QLS System is a relatively simple and inexpensive method of centralizing or automating the lubrication process. Capable of servicing 6, 12 or 18 points, this cost-effective “out-of-the-box” system includes an electric pump and progressive block-type metering valves. The system handles high-pressure wash-downs with its NEMA 4 (USA) and IP6K9K (Europe) protection ratings.

Today I rooted the ‘ConvertMyVideo’ machine on TryHackMe as a part of the TCM’s Linux Privilege Escalation course and decided I learnt a fair amount from it and should likely lock it in my memory by writing about it.

SKFautomatic grease lubrication system

So, now we can begin attempting different types of bypasses and see if we can get a command to work on the machine. I picked the simple commands of ls and pwd, I picked two in an attempt to avoid any false negatives throwing me off.

I found I needed to do some tinkering to generate the output for pspy, and sometimes you need to do it multiple times as the tool might not catch the commands every time.

Once the script is uploaded, as per fig 4, you can then send through a command to execute it (but set up your listener first!). I originally tried $(./.sh) but that didn’t work, had to use $(bash${IFS}