深信服校园招聘安全攻防E卷

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题型介绍
题型 简答题
数量 4
1.
CSRF、SSRF和重放攻击有什么区别? 
问题详情

CSRF、SSRF和重放攻击有什么区别? 

2.
 mysql的网站注入,5.0以上和5.0以下有什么区别?
问题详情

 mysql的网站注入,5.0以上和5.0以下有什么区别?

3.
无论是在日常的网络维护,还是在渗透测试过程中,经常会使用到端口转发、代理、...
问题详情

无论是在日常的网络维护,还是在渗透测试过程中,经常会使用到端口转发、代理、隧道技术,请详尽地说明这三种技术的异同点。

4.
将下列汇编代码逆成等价的C代码。 func1: &nbs...
问题详情

将下列汇编代码逆成等价的C代码。

func1:                

                push    ebp

                mov     ebp, esp

                sub     esp, 14h

                push    esi

                mov     eax, 4

                imul    ecx, eax, 0

                mov     edx, [ebp+0Ch]

                mov     eax, [edx+ecx]

                mov     [ebp-8], eax

                mov     ecx, 4

                shl     ecx, 0

                mov     edx, [ebp+0Ch]

                mov     eax, [edx+ecx]

                mov     [ebp-0Ch], eax

                mov     [ebp-14h], 61C88647h

                mov     [ebp-4], 0C6EF3720h

                mov     [ebp-10h], 0

                jmp     short loc_401369

loc_401360:                            

                mov     ecx, [ebp-10h]

                add     ecx, 1

                mov     [ebp-10h], ecx

loc_401369:                            

                mov     edx, [ebp-10h]

                cmp     edx, [ebp+8]

                jnb     short loc_4013D3

                mov     eax, [ebp-8]

                shl     eax, 5

                mov     ecx, [ebp-8]

                shr     ecx, 4

                xor     eax, ecx

                add     eax, [ebp-8]

                mov     edx, [ebp-4]

                shr     edx, 0Bh

                and     edx, 3

                mov     ecx, [ebp+10h]

                mov     esi, [ebp-4]

                add     esi, [ecx+edx*4]

                xor     eax, esi

                mov     edx, [ebp-0Ch]

                sub     edx, eax

                mov     [ebp-0Ch], edx

                mov     eax, [ebp-4]

                add     eax, [ebp-14h]

                mov     [ebp-4], eax

                mov     ecx, [ebp-0Ch]

                shl     ecx, 5

                mov     edx, [ebp-0Ch]

                shr     edx, 4

                xor     ecx, edx

                add     ecx, [ebp-0Ch]

                mov     eax, [ebp-4]

                and     eax, 3

                mov     edx, [ebp+10h]

                mov     esi, [ebp-4]

                add     esi, [edx+eax*4]

                xor     ecx, esi

                mov     eax, [ebp-8]

                sub     eax, ecx

                mov     [ebp-8], eax

                jmp     short loc_401360

 

loc_4013D3:                            

                mov     ecx, 4

                imul    edx, ecx, 0

                mov     eax, [ebp+0Ch]

                mov     ecx, [ebp-8]

                mov     [eax+edx], ecx

                mov     edx, 4

                shl     edx, 0

                mov     eax, [ebp+0Ch]

                mov     ecx, [ebp-0Ch]

                mov     [eax+edx], ecx

                pop     esi

                mov     esp, ebp

                pop     ebp

                retn

                endp

func1(1,2,3)