V-SOL GPON/EPON OLT Platform v2.03 Link Manipulation Vulnerability

2019-09-26T00:00:00
ID ZSL-2019-5535
Type zeroscience
Reporter Gjoko Krstic
Modified 2019-09-26T00:00:00

Description

Title: V-SOL GPON/EPON OLT Platform v2.03 Link Manipulation Vulnerability
Advisory ID: ZSL-2019-5535
Type: Local/Remote
Impact: Spoofing
Risk: (3/5)
Release Date: 26.09.2019

Summary

GPON is currently the leading FTTH standard in broadband access technology being widely deployed by service providers around the world. GPON/EPON OLT products are 1U height 19 inch rack mount products. The features of the OLT are small, convenient, flexible, easy to deploy, high performance. It is appropriate to be deployed in compact room environment. The OLTs can be used for 'Triple-Play', VPN, IP Camera, Enterprise LAN and ICT applications.

Description

Input passed via the 'parent' GET parameter in 'bindProfile.html' script is not properly verified before being used to redirect users. This can be exploited to redirect a logged-in user to an arbitrary website e.g. when a user clicks a specially crafted link to the affected script hosted on a trusted domain.

Vendor

Guangzhou V-SOLUTION Electronic Technology Co., Ltd. - <https://www.vsolcn.com>

Affected Version

V2.03.62R_IPv6
V2.03.54R
V2.03.52R
V2.03.49
V2.03.47
V2.03.40
V2.03.26
V2.03.24
V1.8.6
V1.4

Tested On

GoAhead-Webs

Vendor Status

N/A

PoC

gpon_olt_urlredirect.txt

Credits

Vulnerability discovered by Gjoko Krstic - <gjoko@zeroscience.mk>

References

[1] <https://packetstormsecurity.com/files/154628>
[2] <https://exchange.xforce.ibmcloud.com/vulnerabilities/167772>
[3] <https://cxsecurity.com/issue/WLB-2019090193>

Changelog

[26.09.2019] - Initial release
[03.10.2019] - Added reference [1], [2] and [3]

Contact

Zero Science Lab

Web: <http://www.zeroscience.mk>
e-mail: lab@zeroscience.mk

                                        
                                            &lt;html&gt;&lt;head&gt;&lt;title&gt;403 Nothing to see.&lt;/title&gt;
&lt;link rel="Shortcut Icon" href="favicon.ico" type="image/x-icon"&gt;
&lt;style type="text/css"&gt;
&lt;!--
body {
	background-color: #000;
}
body,td,th {
	font-family: Verdana, Geneva, sans-serif;
}
a:link {
	color: #008FEF;
	text-decoration: none;
}
a:visited {
	color: #008FEF;
	text-decoration: none;
}
a:hover {
	text-decoration: underline;
	color: #666;
}
a:active {
	text-decoration: none;
}
--&gt;
&lt;/style&gt;
&lt;/head&gt;
&lt;body bgcolor=black&gt;
&lt;center&gt;
&lt;font color="#7E88A3" size="2"&gt;
&lt;br /&gt;&lt;br /&gt;
&lt;h1&gt;403 Nothing to see.&lt;/h1&gt;

You do not have the powah for this request /403.shtml&lt;br /&gt;&lt;br /&gt;
&lt;font size="2"&gt;&lt;a href="https://www.zeroscience.mk"&gt;https://www.zeroscience.mk&lt;/a&gt;&lt;/font&gt;
&lt;/font&gt;&lt;/center&gt;
&lt;/body&gt;&lt;/html&gt;