You’ve got one silver bullet, pull the triggle carefully! nc 37.139.17.37 7331 Let’s check the file information first.
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$ file Silver_Bullet Silver_Bullet: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), dynamically linked, interpreter /lib/ld-linux.so.2, for GNU/Linux 3.2.0, BuildID[sha1]=4e82d2545f78e6611f83f48a98f2ad3a90d4d03b, stripped |
The file is an ELF 32-bit LSB executable. Let’s look at its protections.
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$ checksec Silver_Bullet Arch: i386-32-little RELRO: Full RELRO Stack: No canary found NX: NX enabled PIE: No PIE (0x8048000) |
Its stack is not executable. Let’s decompile… Continue Reading →
Ayo, Johhny’s got your take from the job. Go meet up with em’ to claim your share. Oh, and stop asking to see the Mona Lisa alright. It’s embarrassing nc 18.191.244.121 12345 lisa Let’s check the file information first.
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$ file lisa lisa: ELF 32-bit LSB pie executable, Intel 80386, version 1 (SYSV), dynamically linked, interpreter /lib/ld-linux.so.2, for GNU/Linux 2.6.32, BuildID[sha1]=7f2cd300a5518deec5cb00e27dae466022fdacd9, not stripped |
Very Important Service. Flag in /opt. nc importantservice.uni.hctf.fun 13375 a30577b33492f15d382ef665ee6abda2.tar.xz a30577b33492f15d382ef665ee6abda2.tar.xz MIRROR Let’s look at the file information first.
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$ file importantservice importantservice: ELF 64-bit LSB pie executable, x86-64, version 1 (SYSV), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, for GNU/Linux 3.2.0, BuildID[sha1]=384e47753749ac204fb2125a79f489a1ed476104, not stripped |
It is a 64-bit ELF pie executable which is dynamically linked and not stripped. Let’s check its protections.
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$ checksec importantservice Arch: amd64-64-little RELRO: Partial RELRO Stack: Canary found NX: NX enabled PIE: PIE enabled |
The… Continue Reading →
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