Spoofing attack in nodejs-current (Alpine package)

1) Spoofing attack

EUVDB-ID: #VU16170

Risk: Low

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-12123

CWE-ID: CWE-451 - User Interface (UI) Misrepresentation of Critical Information (Clickjacking, spoofing)

Exploit availability: No

Description

The disclosed vulnerability allows a remote attacker to conduct spoofing attack on the target system.

The vulnerability exists due to security decisions are made about the URL based on the hostname. A remote attacker can use a mixed case "javascript:" (e.g. "javAscript:") protocol and spoof the hostname when a Node.js application is using url.parse()to determine the URL hostname.

Mitigation

Install update from vendor's website.

Vulnerable software versions

nodejs-current (Alpine package): 11.1.0-r0

External links

http://git.alpinelinux.org/aports/commit/?id=1b6fe87123809adb71d7a3a11c0633972d70beed
http://git.alpinelinux.org/aports/commit/?id=d30e50323c5f1784719c4be7a9c21388b2ac6dcb
http://git.alpinelinux.org/aports/commit/?id=9506edbe44db07fc65aab5d444e7e02ca3767187

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.