Challenge Description
My friend found this strange file while perusing his computer, but we can’t read it. Can you figure out what it is and get the information from it? Difficulty: Easy/Medium The flag is in the standard format.
Solution
LevelDBDumper -d challenge -o dumpeddumped data
"[{""payload"":""eyJrZXkiOiJcIjMzNTc5M2Q1LTRhYzEtNDgyMy05MmM3LWZkM2I1YTZhMmEwN1wiIiwib3AiOiJQVVQiLCJ2YWx1ZSI6ImV5SmtZWFJoSWpwYkluTjNZVzF3UTFSR2V6RndaalV0WWpRMU0yUXRaRFEzTkdJME5UTjlJbDBzSW1sa0lqb2lYQ0l6TXpVM09UTmtOUzAwWVdNeExUUTRNak10T1RKak55MW1aRE5pTldFMllUSmhNRGRjSWlKOSJ9"",""id"":""/orbitdb/bafyreiejrtaennxufa3wvkdvyoj6ywq6nid3lukdqcnx2fc33tckzjzbke/ctf"",""next"":[{""/"":""bafyreibbadm2ajrr6io6ufqidibrpdjfpdyfobp2aqvmcprqu5yrk7mq6q""}],""refs"":[{""/"":""bafyreiesvykh6wt7hn4fry4mphv6ckxr5wq3c2fecvcjbqs4scbkizc6jm""},{""/"":""bafyreihq7osywkglsjxn5lmbegtc7izqmb66atx5trkrpcmlvtcyrr6nuy""},{""/"":""bafyreiab6do7qxgjipiypoj754vicpuscejf43eguvo2ykb2igoyrtkl64""}],""v"":2,""key"":""BJx/DXfZOVG6YkoHDGQvNQVMBaoeaEdEvcKFJP0PM1m3h9/o8lJgnTQkqGCAKovuOCovsDHQ5JOVs7qpJm3V8Ks="",""sig"":""MEQCIF5FwOBiQKgEI7njg6He6iAlwNc+Gj8+PAll5o1PCGhKAiBlnXg9+hinX6AGB2r0uXoJ3q9Tbe6azh9euPx40G8uqw=="",""identity"":{""id"":""02020192715ea41d7eaaceb4bd19516d0d4f1e8a2e81903480083dbdbe99dfefc9"",""publicKey"":""BJx/DXfZOVG6YkoHDGQvNQVMBaoeaEdEvcKFJP0PM1m3h9/o8lJgnTQkqGCAKovuOCovsDHQ5JOVs7qpJm3V8Ks="",""signatures"":{""id"":""MEQCIGx+GRqmTfPqcUL28aG2p1Q2TNEfZ9QlCgB8WU4my68UAiBZClP9WMe385COJ0WuNnXRj7BIolRC2v6vhLqUt3Yk/w=="",""publicKey"":""MEQCIFC+7AikjMLabNvdHiHh7rwrFTbystu6xc2r1h/1Zr4jAiBFxjxIMNjfI5J996HDYEQd+fnaKDi5GlNw5hgl+RwEOg==""},""type"":""orbitdb"",""Provider"":null},""hash"":{""/"":""bafyreihq6d33ifjj6jbmjptygyksgwzcrjm5kxarbbp6djbzqx2exij27u""},""clock"":{""id"":""BJx/DXfZOVG6YkoHDGQvNQVMBaoeaEdEvcKFJP0PM1m3h9/o8lJgnTQkqGCAKovuOCovsDHQ5JOVs7qpJm3V8Ks="",""time"":7}}]"Decode base64 payload
❯ echo 'eyJrZXkiOiJcIjMzNTc5M2Q1LTRhYzEtNDgyMy05MmM3LWZkM2I1YTZhMmEwN1wiIiwib3AiOiJQVVQiLCJ2YWx1ZSI6ImV5SmtZWFJoSWpwYkluTjNZVzF3UTFSR2V6RndaalV0WWpRMU0yUXRaRFEzTkdJME5UTjlJbDBzSW1sa0lqb2lYQ0l6TXpVM09UTmtOUzAwWVdNeExUUTRNak10T1RKak55MW1aRE5pTldFMllUSmhNRGRjSWlKOSJ9' | base64 -d{"key":"\"335793d5-4ac1-4823-92c7-fd3b5a6a2a07\"","op":"PUT","value":"eyJkYXRhIjpbInN3YW1wQ1RGezFwZjUtYjQ1M2QtZDQ3NGI0NTN9Il0sImlkIjoiXCIzMzU3OTNkNS00YWMxLTQ4MjMtOTJjNy1mZDNiNWE2YTJhMDdcIiJ9"}%
~/ctf/swampctf/dumped❯ echo 'eyJkYXRhIjpbInN3YW1wQ1RGezFwZjUtYjQ1M2QtZDQ3NGI0NTN9Il0sImlkIjoiXCIzMzU3OTNkNS00YWMxLTQ4MjMtOTJjNy1mZDNiNWE2YTJhMDdcIiJ9' | base64 -d{"data":["swampCTF{1pf5-b453d-d474b453}"],"id":"\"335793d5-4ac1-4823-92c7-fd3b5a6a2a07\""}