安全牛学习笔记NMAP
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NMAP
╋━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━╋
┃NMAP ┃
┃nmap扫描脚本 ┃
┃ 400+ ┃
┃ 分类 ┃
┃cat /usr/share/nmap/scripts/script.db ┃
┃grep vuln /usr/share/nmap/scripts/script.db | cut -d "\‘" -f 2 ┃
┃cat /usr/share/nmap/scripts/smb-check-vulns.nse ┃
┃smb-check-vulns.nse ┃
┃ nmap -sU -sS --script=smb-check-vulns.nse --script-args=unsafe=1 -p U:137,T:139,445 1.1.1.1 ┃
┃ MS08-067 ┃
╋━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━╋
[email protected]:~# cd /usr/share/nmap/scripts
[email protected]:/usr/share/nmap/scripts# less script.db //浏览文件内容
[email protected]:/usr/share/nmap/scripts# less script.db | wc -l //查看文件数量
495
[email protected]:/usr/share/nmap/scripts# less script.db | grep vuln | wc -l
74
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┃NMAP ┃
┃smb-vuln-ms10-061.nse ┃
┃ Stuxnet蠕虫利用的4个漏洞之一 ┃
┃ Print Spooler权限不当，打印请求可在系统目录可创建文件、执行任意代码 ┃
┃ LANMAN API枚举共享打印机 ┃
┃ 原创共享打印机名称 ┃
┃ smb-enum-shares枚举共享 ┃
┃ 身份认证参数-----smbuser、smbpassword ┃
┃ nmap -p445 --script=smb-enum-shares.nse --script-args=smbuser=admin,smbpassword=pass ┃
┃ Windows XP,Server 2003 SP2,Vista,Server 2008,win 7 ┃
┃影响扫描结果的因素 ┃
╋━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━╋
╋━━━━━━━━━━━━━━━━━╋
┃扫描结果确认 ┃
┃目标系统版本 ┃
┃补丁是否按照 ┃
┃是否可被入侵 ┃
┃ ┃
┃有时很难说什么才是准确的扫描结果 ┃
┃应综合的看待漏洞威胁 ┃
╋━━━━━━━━━━━━━━━━━╋
[email protected]:/usr/share/nmap/scripts# cat smb-vuln-ms10-061.nse
local bin = require "bin"
local msrpc = require "msrpc"
local smb = require "smb"
local string = require "string"
local vulns = require "vulns"
local stdnse = require "stdnse"
description = [[
Tests whether target machines are vulnerable to ms10-061 Printer Spooler impersonation vulnerability.
This vulnerability was used in Stuxnet worm. The script checks for
the vuln in a safe way without a possibility of crashing the remote
system as this is not a memory corruption vulnerability. In order for
the check to work it needs access to at least one shared printer on
the remote system. By default it tries to enumerate printers by using
LANMAN API which on some systems is not available by default. In that
case user should specify printer share name as printer script
argument. To find a printer share, smb-enum-shares can be used.
Also, on some systems, accessing shares requires valid credentials
which can be specified with smb library arguments smbuser and
smbpassword.
References:
- http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-2729
- http://technet.microsoft.com/en-us/security/bulletin/MS10-061
- http://blogs.technet.com/b/srd/archive/2010/09/14/ms10-061-printer-spooler-vulnerability.aspx
]]
---
-- @usage nmap -p 445 <target> --script=smb-vuln-ms10-061
--
-- @args printer Printer share name. Optional, by default script tries to enumerate available printer shares.
--
-- @output
-- PORT STATE SERVICE REASON
-- 445/tcp open microsoft-ds syn-ack
-- Host script results:
-- | smb-vuln-ms10-061:
-- | VULNERABLE:
-- | Print Spooler Service Impersonation Vulnerability
-- | State: VULNERABLE
-- | IDs: CVE:CVE-2010-2729
-- | Risk factor: HIGH CVSSv2: 9.3 (HIGH) (AV:N/AC:M/Au:N/C:C/I:C/A:C)
-- | Description:
-- | The Print Spooler service in Microsoft Windows XP,Server 2003 SP2,Vista,Server 2008, and 7, when printer sharing is enabled,
-- | does not properly validate spooler access permissions, which allows remote attackers to create files in a system directory,
-- | and consequently execute arbitrary code, by sending a crafted print request over RPC, as exploited in the wild in September 2010,
-- | aka "Print Spooler Service Impersonation Vulnerability."
-- |
-- | Disclosure date: 2010-09-5
-- | References:
-- | http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-2729
-- | http://technet.microsoft.com/en-us/security/bulletin/MS10-061
-- |_ http://blogs.technet.com/b/srd/archive/2010/09/14/ms10-061-printer-spooler-vulnerability.aspx
author = "Aleksandar Nikolic"
license = "Same as Nmap--See http://nmap.org/book/man-legal.html"
categories = {"vuln","intrusive"}
hostrule = function(host)
return smb.get_port(host) ~= nil
end
action = function(host,port)
local ms10_061 = {
title = "Print Spooler Service Impersonation Vulnerability",
IDS = {CVE = ‘CVE-2010-2729‘},
risk_factor = "HIGH",
scores = {
CVSSv2 = "9.3 (HIGH) (AV:N/AC:M/Au:N/C:C/I:C/A:C)",
},
description = [[
The Print Spooler service in Microsoft Windows XP,Server 2003 SP2,Vista,Server 2008, and 7, when printer sharing is enabled,
does not properly validate spooler access permissions, which allows remote attackers to create files in a system directory,
and consequently execute arbitrary code, by sending a crafted print request over RPC, as exploited in the wild in September 2010,
aka "Print Spooler Service Impersonation Vulnerability."
]],
references = {
‘http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-2729‘,
‘http://technet.microsoft.com/en-us/security/bulletin/MS10-061‘,
‘http://blogs.technet.com/b/srd/archive/2010/09/14/ms10-061-printer-spooler-vulnerability.aspx‘
},
dates = {
disclosure = {year = ‘2010‘, month = ‘09‘, day = ‘5‘},
},
exploit_results = {},
}
local report = vulns.Report:new(SCRIPT_NAME, host, port)
ms10_061.state = vulns.STATE.NOT_VULN
local status, smbstate
status, smbstate = msrpc.start_smb(host, msrpc.SPOOLSS_PATH,true)
if(status == false) then
stdnse.debug1("SMB: " .. smbstate)
return false, smbstate
end
local bind_result
status, bind_result = msrpc.bind(smbstate,msrpc.SPOOLSS_UUID, msrpc.SPOOLSS_VERSION, nil)
if(status == false) then
msrpc.stop_smb(smbstate)
stdnse.debug1("SMB: " .. bind_result)
return false, bind_result
end
local printer = stdnse.get_script_args(SCRIPT_NAME .. ‘.printer‘)
-- if printer not set find available printers
if not printer then
stdnse.debug1("No printer specified, trying to find one...")
local lanman_result
local REMSmb_NetShareEnum_P = "WrLeh"
local REMSmb_share_info_1 = "B13BWz"
status, lanman_result = msrpc.call_lanmanapi(smbstate,0,REMSmb_NetShareEnum_P,REMSmb_share_info_1,bin.pack("ss",0x01,65406))
if status == false then
stdnse.debug1("SMB: " .. lanman_result)
stdnse.debug1("SMB: Looks like LANMAN API is not available. Try setting printer script arg.")
end
local parameters = lanman_result.parameters
local data = lanman_result.data
local pos, status, convert, entry_count, available_entries = bin.unpack("<SSSS", parameters)
pos = 0
local share_type, name, _
for i = 1, entry_count, 1 do
_,share_type = bin.unpack(">s",data,pos+14)
pos, name = bin.unpack("<z", data, pos)
-- pos needs to be rounded to the next even multiple of 20
pos = pos + ( 20 - (#name % 20) ) - 1
if share_type == 1 then -- share is printer
stdnse.debug1("Found printer share %s.", name)
printer = name
end
end
end
if not printer then
stdnse.debug1("No printer found, system may be unpatched but it needs at least one printer shared to be vulnerable.")
return false
end
stdnse.debug1("Using %s as printer.",printer)
-- call RpcOpenPrinterEx - opnum 69
local status, result = msrpc.spoolss_open_printer(smbstate,"\\\\"..host.ip.."\\"..printer)
if not status then
return false
end
local printer_handle = string.sub(result.data,25,#result.data-4)
stdnse.debug1("Printer handle %s",stdnse.tohex(printer_handle))
-- call RpcStartDocPrinter - opnum 17
status,result = msrpc.spoolss_start_doc_printer(smbstate,printer_handle,",") -- patched version will allow this
if not status then
return false
end
local print_job_id = string.sub(result.data,25,#result.data-4)
stdnse.debug1("Start doc printer job id %s",stdnse.tohex(print_job_id))
-- call RpcWritePrinter - 19
status, result = msrpc.spoolss_write_printer(smbstate,printer_handle,"aaaa")
if not status then
return false
end
local write_result = string.sub(result.data,25,#result.data-4)
stdnse.debug1("Written %s bytes to a file.",stdnse.tohex(write_result))
if stdnse.tohex(write_result) == "00000000" then -- patched version would report 4 bytes written
ms10_061.state = vulns.STATE.VULN -- identified by diffing patched an unpatched version
end
-- call abort_printer to stop the actual printing in case the remote system is not vulnerable
-- we care about the environment and don‘t want to spend more paper then needed :)
status,result = msrpc.spoolss_abort_printer(smbstate,printer_handle)
return report:make_output(ms10_061)
end
[email protected]:/usr/share/nmap/scripts# nmap -p445 --script=smb-enum-shares.nse --script-args=smbuser=admin,smbpassword=pass
Starting Nmap 6.49BETA5 ( https://nmap.org ) at 2015-10-10 22:47 CST
WARNING: No targets were specified, so 0 hosts scanned.
Nmap done: 0 IP addresses (0 hosts up) scanned in 0.43 seconds
[email protected]:~# nmap 192.168.1.0/24 -sn //查看有哪些机器
[email protected]:/usr/share/nmap/scripts# nmap -p445 --script=smb-enum-shares.nse --script-args=smbuser=admin,smbpassword=pass 1.1.1.1
Starting Nmap 6.49BETA5 ( https://nmap.org ) at 2015-10-10 22:50 CST
Note: Host seems down. If it is really up, but blocking our ping probes, try -Pn
Nmap done: 1 IP address (0 hosts up) scanned in 3.33 seconds
[email protected]:/usr/share/nmap/scripts# nmap -p445 --script=smb-enum-shares.nse 192.168.1.104
Starting Nmap 6.49BETA5 ( https://nmap.org ) at 2015-10-10 22:55 CST
Note: Host seems down. If it is really up, but blocking our ping probes, try -Pn
Nmap done: 1 IP address (0 hosts up) scanned in 0.71 seconds
╋━━━━━━━━━━━━━━━━━╋
┃OPENVAS ┃
┃Openvas ┃
┃ Nessus项目分支 ┃
┃ 管理目标系统的漏洞 ┃
┃ 免费开源 ┃
┃ Kali默认安装，但未配置和启动 ┃
╋━━━━━━━━━━━━━━━━━╋
OPENVAS
Greenbone Security Manager:OpenVAS Framework Architecture
←───OSP Scanner ╲ OMP Clients Web Browser
╲ ↑ ↑
Target OpenVAS ↘ OpenVAS Greenbone
Systems ←─── Scanner ───→ Manager───→ Security Assistant
↑ ↗ ↑
NVTs SCAP User
CERT Data
↑ ↑ ↑
Feed─────────────────┘
OMP:API of OpenVAS Manager
-CU access
-Batch processes
-Tool integration
OSP:Unified scanner control Layer
-Scanner integration
NVTs:Netwaork Vulnerability Tests
╋━━━━━━━━━━━━━━━━━━━━━━━╋
┃OPENVAS ┃
┃OpenVAS Manager ┃
┃ 控制scanner和气筒manager的中心组建 ┃
┃ 控制中心数据库，保存用户配置及扫描结果 ┃
┃ 客户点使用基于XML的无状态OMP协议与其通信 ┃
┃ 集中排序筛选，使客户端获得一致展现 ┃
┃OpenVAS Scanner ┃
┃ 具体执行Network Vnlerability Tests (NVTs) ┃
┃ NVTs每天通过Feed更新 ┃
┃ 受Manager控制 ┃
╋━━━━━━━━━━━━━━━━━━━━━━━╋
╋━━━━━━━━━━━━━━━━━━━━━━━╋
┃OPENVAS ┃
┃OSP Scanner ┃
┃ 可以统一管理多个scanner ┃
┃ 将一组scanner作为一个对象交给manager管理 ┃
┃Greenbone Security Sssistant (GSA) ┃
┃ 提供Web service ┃
┃OpenVAS CU ┃
┃ amp命令行工具，可实现批处理控制manager ┃
┃更新很快 ┃
┃ 所有找得到的资料几乎都已不同程度的过时了 ┃
╋━━━━━━━━━━━━━━━━━━━━━━━╋
╋━━━━━━━━━╋
┃OPENVAS ┃
┃安装 ┃
┃创建证书 ┃
┃同步弱点数据库 ┃
┃创建客户端证书 ┃
┃重建数据库 ┃
┃备份数据库 ┃
┃启动服务装入插件 ┃
┃创建管理员账号 ┃
┃创建普通用户账号 ┃
┃配置服务侦听端口 ┃
┃安装验证 ┃
╋━━━━━━━━━╋
[email protected]:~# openvas-setup
User created with password ‘d2c50877-f3e2-4cef-9ceb-77cc812dac10‘.
╋━━━━━━━━━━━━━━━━━━━━━━━━━╋
┃OPENVAS ┃
┃初始化安装 ┃
┃ openvas-setup ┃
┃检查安装结果 ┃
┃ openvas-check-setup ┃
┃查看当前账号 ┃
┃ openvasmd --list-users ┃
┃修改账号密码 ┃
┃ openvasmd --user=admin --new-password=password┃
┃升级 ┃
┃ openvas-feed-update ┃
╋━━━━━━━━━━━━━━━━━━━━━━━━━╋
╋━━━━━━━━━━━━━━━━━━━━━━━━━╋
┃OPENVAS ┃
┃不是秘笈是经验 ┃
┃vi /usr/bin/openvas-start ┃
┃ Starting OpenVas Services ┃
┃ Starting OpenVas Manager:openvasmd ┃
┃ Starting OpenVas Scanner:openvassd ┃
┃ Starting Greenbone Security Assistant:gsad ┃
╋━━━━━━━━━━━━━━━━━━━━━━━━━╋
[email protected]:~# openvasmd -h
Usage:
openvasmd [OPTION...] - Manager of the Open Vulnerability Assessment System
Help Options:
-h, --help Show help options
Application Options:
--backup Backup the database.
-d, --database=<file/name> Use <file/name> as database for SQLite/Postgres.
--disable-cmds=<commands> Disable comma-separated <commands>.
--disable-encrypted-credentials Do not encrypt or decrypt credentials.
--disable-password-policy Do not restrict passwords to the policy.
--disable-scheduling Disable task scheduling.
--create-user=<username> Create admin user <username> and exit.
--delete-user=<username> Delete user <username> and exit.
--get-users List users and exit.
--create-scanner=<scanner> Create global scanner <scanner> and exit.
--modify-scanner=<scanner-uuid> Modify scanner <scanner-uuid> and exit.
--scanner-name=<name> Name for --modify-scanner.
--scanner-host=<scanner-host> Scanner host for --create-scanner, --rebuild and --update. Default is 127.0.0.1.
--scanner-port=<scanner-port> Scanner port for --create-scanner, --rebuild and --update. Default is 9391.
--scanner-type=<scanner-type> Scanner type for --create-scanner. Either ‘OpenVAS‘ or ‘OSP‘.
--scanner-ca-pub=<scanner-ca-pub> Scanner CA Certificate path for --[create|modify]-scanner.
--scanner-key-pub=<scanner-key-public> Scanner Certificate path for --[create|modify]-scanner.
--scanner-key-priv=<scanner-key-private> Scanner private key path for --[create|modify]-scanner.
--verify-scanner=<scanner-uuid> Verify scanner <scanner-uuid> and exit.
--delete-scanner=<scanner-uuid> Delete scanner <scanner-uuid> and exit.
--get-scanners List scanners and exit.
-f, --foreground Run in foreground.
-a, --listen=<address> Listen on <address>.
--listen2=<address> Listen also on <address>.
--max-ips-per-target=<number> Maximum number of IPs per target.
--max-email-attachment-size=<number> Maximum size of alert email attachments, in bytes.
--max-email-include-size=<number> Maximum size of inlined content in alert emails, in bytes.
-m, --migrate Migrate the database and exit.
--create-credentials-encryption-key Create a key to encrypt credentials.
--encrypt-all-credentials (Re-)Encrypt all credentials.
--new-password=<password> Modify user‘s password and exit.
--optimize=<name> Run an optimization: vacuum, analyze, cleanup-config-prefs, remove-open-port-results or cleanup-port-names.
-p, --port=<number> Use port number <number>.
--port2=<number> Use port number <number> for address 2.
--progress Display progress during --rebuild and --update.
--rebuild Rebuild the NVT cache and exit.
--role=<role> Role for --create-user and --get-users.
-u, --update Update the NVT cache and exit.
--user=<username> User for --new-password.
--gnutls-priorities=<priorities-string> Sets the GnuTLS priorities for the Manager socket.
--dh-params=<file> Diffie-Hellman parameters file
-v, --verbose Print tracing messages.
--version Print version and exit.
[email protected]:~# openvasmd --get-users //查看用户名
admin
[email protected]:~# openvasmd --user=admin --new-password=password //修改账号密码
[email protected]:~# netstat -pantu | grep 939
tcp 0 0 127.0.0.1:9390 0.0.0.0:* LISTEN 3759/openvasmd
tcp 0 0 127.0.0.1:9391 0.0.0.0:* LISTEN 3734/openvassd: Wai
tcp 0 0 127.0.0.1:9392 0.0.0.0:* LISTEN 3764/gsad
tcp 0 0 127.0.0.1:37695 127.0.0.1:9392 ESTABLISHED 4377/iceweasel
tcp 0 0 127.0.0.1:9392 127.0.0.1:37695 ESTABLISHED 3764/gsad
[email protected]:~# openvas-check-setup //检查安装结果
[email protected]:~# openvas-check-setup | grep FIX
[email protected]:~# openvas-feed-update //升级
https://127.0.0.1:9392
点击I Understand the Risks
[email protected]:~# openvas-start
Starting OpenVas Services
╋━━━━━━━━━╋
┃OPENVAS ┃
┃扫描配置 ┃
┃ 扫描windows ┃
┃ 扫描Linux ┃
┃ 扫描网络设备 ┃
╋━━━━━━━━━╋
╋━━━━━━━━━╋
┃OPENVAS ┃
┃扫描目标 ┃
┃ windows ┃
┃ Linux ┃
┃ 路由器 ┃
╋━━━━━━━━━╋
╋━━━━━━━━━╋
┃OPENVAS ┃
┃扫描配置 ┃
┃ 进度 ┃
┃ 报告 ┃
╋━━━━━━━━━╋
该笔记为安全牛课堂学员笔记，想看此课程或者信息安全类干货可以移步到安全牛课堂
Security+认证为什么是互联网+时代最火爆的认证？
牛妹先给大家介绍一下Security+
Security+ 认证是一种中立第三方认证，其发证机构为美国计算机行业协会CompTIA ；是和CISSP、ITIL 等共同包含在内的国际 IT 业 10 大热门认证之一，和CISSP偏重信息安全管理相比，Security+ 认证更偏重信息安全技术和操作。
通过该认证证明了您具备网络安全，合规性和操作安全，威胁和漏洞，应用程序、数据和主机安全，访问控制和身份管理以及加密技术等方面的能力。因其考试难度不易，含金量较高，目前已被全球企业和安全专业人士所普遍采纳。
Security+认证如此火爆的原因？
原因一：在所有信息安全认证当中，偏重信息安全技术的认证是空白的， Security+认证正好可以弥补信息安全技术领域的空白 。
目前行业内受认可的信息安全认证主要有CISP和CISSP，但是无论CISP还是CISSP都是偏重信息安全管理的，技术知识讲的宽泛且浅显，考试都是一带而过。而且CISSP要求持证人员的信息安全工作经验都要5年以上，CISP也要求大专学历4年以上工作经验，这些要求无疑把有能力且上进的年轻人的持证之路堵住。在现实社会中，无论是找工作还是升职加薪，或是投标时候报人员，认证都是必不可少的，这给年轻人带来了很多不公平。而Security+的出现可以扫清这些年轻人职业发展中的障碍，由于Security+偏重信息安全技术，所以对工作经验没有特别的要求。只要你有IT相关背景，追求进步就可以学习和考试。
原因二： IT运维人员工作与翻身的利器。
在银行、证券、保险、信息通讯等行业，IT运维人员非常多，IT运维涉及的工作面也非常广。是一个集网络、系统、安全、应用架构、存储为一体的综合性技术岗。虽然没有程序猿们“生当做光棍，死亦写代码”的悲壮，但也有着“锄禾日当午，不如运维苦“的感慨。天天对着电脑和机器，时间长了难免有对于职业发展的迷茫和困惑。Security+国际认证的出现可以让有追求的IT运维人员学习网络安全知识，掌握网络安全实践。职业发展朝着网络安全的方向发展，解决国内信息安全人才的匮乏问题。另外，即使不转型，要做好运维工作，学习安全知识取得安全认证也是必不可少的。
原因三：接地气、国际范儿、考试方便、费用适中！
CompTIA作为全球ICT领域最具影响力的全球领先机构,在信息安全人才认证方面是专业、公平、公正的。Security+认证偏重操作且和一线工程师的日常工作息息相关。适合银行、证券、保险、互联网公司等IT相关人员学习。作为国际认证在全球147个国家受到广泛的认可。
在目前的信息安全大潮之下，人才是信息安全发展的关键。而目前国内的信息安全人才是非常匮乏的，相信Security+认证一定会成为最火爆的信息安全认证。
近期，安全牛课堂在做此类线上培训，感兴趣可以了解
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