Mission 0x19

🔎 Solution

After logging in as frida, the next task focused on analyzing a file containing repeated lines.

################
# MISSION 0x19 #
################

## EN ##
The password of eliza is the only string that is repeated (unsorted) in repeated.txt.

The hint suggested that among all entries in the file, only one string appears more than once. The uniq command includes an option that makes this easy: -d, which outputs only duplicated lines.

Running it against the provided file:

frida@venus:~$ uniq -d repeated.txt 
Fg6b6aoksceQqB9

That repeated value turned out to be the next password. Using it allowed access to the user eliza:

ssh eliza@venus.hackmyvm.eu -p 5000

Once inside, checking the usual file revealed the next flag:

eliza@venus:~$ cat flagz.txt 
8===zwWIPyDf2ozwVhCTxm1I===D~~

🚩Flag

8===zwWIPyDf2ozwVhCTxm1I===D~~