CodeJitsu targetted Shellphish running YAN01_00015 in round 58.

---

Type 2 POV

Reading from protected address: 0x4347c000

0xbaaaaf8b : int 128

Tracing data from eip: 0xbaaaaf8b tracing source of register: ecx (value: 0x4347c000)

0xbaaaaf84 : shl ecx,8
0xbaaaaf8b: int 128 // address: ecx value: 0x4347c000

---

The application exited with a segmentation fault

0: 0 // esp: 0

---

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

Tracing data from eip: 0x8048ba9 tracing source of memory: 0xbaaaaff8 (value: 0xbaaaaf6c)

0x804939a : receive syscall (return)
0x804909b : mov bl,byte ptr [esi+ecx]
0x804909e : mov byte ptr [ebp-0x29],bl
0x80490a1 : mov bl,byte ptr [ebp-0x29]
0x80490aa : mov byte ptr [edx+ecx],bl
0x8048ba9: ret // address: 0xbaaaaff8 value: 0xbaaaaf6c

---

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

Tracing data from eip: 0xbaaaaf6c tracing source of memory: 0xbaaaaf6c (value: 0xdb31c031)

0x804939a : receive syscall (return)
0x804909b : mov bl,byte ptr [esi+ecx]
0x804909e : mov byte ptr [ebp-0x29],bl
0x80490a1 : mov bl,byte ptr [ebp-0x29]
0x80490aa : mov byte ptr [edx+ecx],bl
0xbaaaaf6c: xor eax,eax // address: 0xbaaaaf6c value: 0xdb31c031