#VU25753 Open redirect in WebThings Gateway - CVE-2020-6803

Vulnerability identifier: #VU25753

Vulnerability risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2020-6803

CWE-ID: CWE-601

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
WebThings Gateway
Server applications / Application servers

Vendor: Mozilla IoT

Description

The vulnerability allows a remote attacker to redirect victims to arbitrary URL.

The vulnerability exists due to improper sanitization of user-supplied data on the gateway's login page. A remote attacker can create a link that leads to a trusted website, however, when clicked, redirects the victim to arbitrary domain.

Successful exploitation of this vulnerability may allow a remote attacker to perform a phishing attack and steal potentially sensitive information.

Mitigation
Install update from vendor's website.

Vulnerable software versions

WebThings Gateway: 0.1.0 - 0.11.0

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External links
https://github.com/mozilla-iot/gateway/pull/2446

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Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.