CodeJitsu targetted CSDS running CROMU_00094 in round 15.

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Type 1 POV

eip:0xe64ee808 - edx:0xcce4620

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Execution control corruption via return (return to: 0xbaaaaad8).

Tracing data from eip: 0x8048dcf tracing source of memory: 0xbaaaaad8 (value: 0xbaaaabe5)

0x804d18d : receive syscall (return)
0x804bff9 : mov dl,byte ptr [eax]
0x804bffb : mov byte ptr [ebp-0x12],dl
0x804c0f2 : mov al,byte ptr [ebp-0x12]
0x804c103 : mov byte ptr [ecx],al
0x804c587 : mov dl,byte ptr [eax]
0x804c597 : mov byte ptr [eax],dl
0x804c587 : mov dl,byte ptr [eax]
0x804c597 : mov byte ptr [eax],dl
0x8048dcf: ret // address: 0xbaaaaad8 value: 0xbaaaabe5

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Execution of memory occurred that was not part of the initial text sections or an executably allocated page.

Tracing data from eip: 0xbaaaabe5 tracing source of memory: 0xbaaaabe5 (value: 0xce4620ba)

0x804d18d : receive syscall (return)
0x804bff9 : mov dl,byte ptr [eax]
0x804bffb : mov byte ptr [ebp-0x12],dl
0x804c0f2 : mov al,byte ptr [ebp-0x12]
0x804c103 : mov byte ptr [ecx],al
0xbaaaabe5: mov edx,0xcce4620 // address: 0xbaaaabe5 value: 0xce4620ba

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Negotiated general register: edx:0xcce4620

Tracing data from eip: 0xbaaaabef tracing source of register: edx (value: 0xcce4620)

0xbaaaabe5 : mov edx,0xcce4620
0xbaaaabef: jmp ebx // address: edx value: 0xcce4620