TECHx targetted Disekt running YAN01_00016 in round 92.

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Type 1 POV

eip:0x542d1e - ebp:0x30d0708

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The application exited with a segmentation fault

0x8048e4c: 0x8048e4c // esp: 0xbaaaaff8

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Execution control corruption via return (return to: 0xbaaaaff8).

Tracing data from eip: 0x8048e4c tracing source of memory: 0xbaaaaff8 (value: 0x542d1e)

0x804956a : receive syscall (return)
0x804926b : mov bl,byte ptr [esi+ecx]
0x804926e : mov byte ptr [ebp-0x29],bl
0x8049271 : mov bl,byte ptr [ebp-0x29]
0x804927a : mov byte ptr [edx+ecx],bl
0x8048e4c: ret // address: 0xbaaaaff8 value: 0x542d1e

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Negotiated general register: ebp:0x30d0708

Tracing data from eip: 0x8048e4c tracing source of register: ebp (value: 0x30d0708)

0x804956a : receive syscall (return)
0x804926b : mov bl,byte ptr [esi+ecx]
0x804926e : mov byte ptr [ebp-0x29],bl
0x8049271 : mov bl,byte ptr [ebp-0x29]
0x804927a : mov byte ptr [edx+ecx],bl
0x8048e4b : pop ebp
0x8048e4c: ret // address: ebp value: 0x30d0708