Vulnerability CVE-2018-10561
Published: 2018-05-03   Modified: 2018-05-04

Description:
An issue was discovered on Dasan GPON home routers. It is possible to bypass authentication simply by appending "?images" to any URL of the device that requires authentication, as demonstrated by the /menu.html?images/ or /GponForm/diag_FORM?images/ URI. One can then manage the device.

Type:

CWE-287

 (Improper Authentication)

CVSS2 => (AV:N/AC:L/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.5/10
6.4/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Dasannetworks -> Gpon router firmware 

 References:
http://www.securityfocus.com/bid/107053
https://www.exploit-db.com/exploits/44576/
https://www.vpnmentor.com/blog/critical-vulnerability-gpon-router/
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