Disekt targetted CSDS running CROMU_00064 in round 18.


Type 2 POV

Reading from protected address: 0x4347c000

0xbaaaabf9 : int 128

Tracing data from eip: 0xbaaaabf9 tracing source of register: ecx (value: 0x4347c000)

0xbaaaabdd : xor ecx,0x1010101
0xbaaaabf9: int 128 // address: ecx value: 0x4347c000

Execution control corruption via return (return to: 0xbaaaac58).

Tracing data from eip: 0x80494a2 tracing source of memory: 0xbaaaac58 (value: 0xbaaaabd2)

0x804ffce : receive syscall (return)
0x80494a2: ret // address: 0xbaaaac58 value: 0xbaaaabd2

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

Tracing data from eip: 0xbaaaabd2 tracing source of memory: 0xbaaaabd2 (value: 0x8940c031)

0x804ffce : receive syscall (return)
0xbaaaabd2: xor eax,eax // address: 0xbaaaabd2 value: 0x8940c031

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