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https://github.com/AbdullahRizwan101/CTF-Writeups
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43 lines
1.2 KiB
Markdown
43 lines
1.2 KiB
Markdown
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# echoCTF - Cretin
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We can find the first flag by printing the environmental variable `env`after connecting with `nc`
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<img src="https://i.imgur.com/W3pfD6y.png"/>
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## Privilege Escalation (dribble)
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Running `sudo -l` we can see that this user can run`ed` binary as `dribble` user
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<img src="https://i.imgur.com/yUcCpkO.png"/>
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So looking at GTFOBINS
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<img src="https://i.imgur.com/xCVTDQ4.png"/>
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<img src="https://i.imgur.com/gH0MIhH.png"/>
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## Privilege Escalation (scribble)
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Again running sudo -l we can see this user can now run `capsh` binary as `scribble` user
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<img src="https://i.imgur.com/CKRs4Zu.png"/>
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<img src="https://i.imgur.com/CQCgPnI.png"/>
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## Privilege Escalation (ETSCTF)
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This is the last priv esc that we need to do , we can run `whiptail` as `ETSCTF` user
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<img src="https://i.imgur.com/d0E4RS4.png"/>
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<img src="https://i.imgur.com/epD2yyq.png"/>
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Running that we will get ambiguous redirect , so this isn't actually a binary but a script which is running the actual whiptail binary
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<img src="https://i.imgur.com/YnGY3XY.png"/>
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We just need to specify the file name to read as the privesc is already included here
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<img src="https://i.imgur.com/3plgxnf.png"/>
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<img src="https://i.imgur.com/VfmywhW.png"/>
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