GPON ONT Home Gateway Router is vulnerable to authentication bypass (CVE-2018-10561)

High Nessus Plugin ID 119776

Synopsis

The remote host is affected by an authentication bypass vulnerability.

Description

An issue was discovered in GPON ONT Home Gateway Router web administration interface. It is possible to bypass authentication of web interface by using the following approach:
- http(s)://<Router IP>/<some file>?images/
- http(s)://<Router IP>/<some file>?style/
- http(s)://<Router IP>/<some file>?script/
- http(s)://<Router IP>/images/../<some file>
- http(s)://<Router IP>/style/../<some file>
- http(s)://<Router IP>/script/../<some file> For example, '/menu.html?images/' or '/GponForm/diag_FORM?images/' URI.
This allows an attacker to fully control the target device.

Solution

Consult your vendor for a patch or a workaround.

See Also

https://www.vpnmentor.com/blog/critical-vulnerability-gpon-router/

Plugin Details

Severity: High

ID: 119776

File Name: gpon_cve-2018-10561.nbin

Version: 1.14

Type: remote

Family: Web Servers

Published: 2018/12/19

Updated: 2019/07/16

Dependencies: 119775

Risk Information

Risk Factor: High

CVSS Score Source: CVE-2018-10561

CVSS v2.0

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Temporal Vector: CVSS2#E:H/RL:OF/RC:C

CVSS v3.0

Base Score: 9.8

Temporal Score: 9.4

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:H/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:dasannetworks:gpon_router

Required KB Items: installed_sw/GPON HG

Exploit Available: true

Exploit Ease: Exploits are available

Exploited by Nessus: true

Vulnerability Publication Date: 2018/05/03

Reference Information

CVE: CVE-2018-10561

EDB-ID: 44576