![]() My favorite resource for solving cipher challenges is Rumkin.Īlthough there many different types of substitution ciphers, CTFs are notorious for using ROT13. The string uggcf:ebbz362.pbz also looked a whole lot like, so I was pretty sure a simple substitution cipher was used. Within the file was the string: uggcf: The: was a pretty good indicator that I was looking at an obfuscated URL. ![]() I giddily typed it into WinRAR (still mistrusting good ole 7-Zip) and once again, FAIL So what could it be Out of desperation, I searched for juniper password and a couple entries down was an article from The Register about the hard coded backdoor password found in Junipers Netscreen firewalls.Īnd just like that, the archive extracted dbbackup.txt. Was I missing a password from a previous challenge How about an ignored hint And I was Staring right at me in the upper-left corner of the message box was the word Juniper. ![]() While walking around the building, I started thinking about the previous NYST-CTF challenges and it made me second guess my brute forcing approach. Unfortunately, I was alone in my office where most of these options didnt apply. Within 10 minutes, I had the required f file finished and was attempting9,000 passwordssecond. Thankfully, Ive had to do this a time or two and was familiar with using cRARk (a CUDA and OpenCL compatible RAR cracker). Xor Brute Force Online Archive From The.Xor Brute Force Online Password Protected So.
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