Information disclosure in Orange ADSL modems

1) Information disclosure

EUVDB-ID: #VU16681

Risk: Low

CVSSv3.1: 7.1 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:P/RL:U/RC:C]

CVE-ID: CVE-2018-20377

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows a remote attacker to obtain potentially sensitive information.

The weakness exists due to information exposure. A remote attacker can discover modem’s SSID and to steal the WiFi password via a GET request for /get_getnetworkconf.cgi on port 8080, leading to full control if the admin password equals the Wi-Fi password or has the default admin value.

Mitigation

Cybersecurity Help is currently unaware of any official solution to address the vulnerability.

Vulnerable software versions

ADSL modems: All versions

External links

http://github.com/zadewg/LIVEBOX-0DAY
http://badpackets.net/over-19000-orange-livebox-adsl-modems-are-leaking-their-wifi-credentials/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected device in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.