Vulnerability identifier: #VU50833

Vulnerability risk: Medium

CVSSv3.1: 4.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C]

CVE-ID: CVE-2020-28481

CWE-ID: CWE-264

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
socket.io
Universal components / Libraries / Libraries used by multiple products

Vendor: socket.io

Description

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to CORS misconfiguration. A remote attacker can gain access to sensitive information on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

socket.io: 0.5.0 - 2.3.0

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External links
http://github.com/socketio/socket.io/issues/3671
http://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWER-1056358
http://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1056357
http://snyk.io/vuln/SNYK-JS-SOCKETIO-1024859

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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. However, proof of concept for this vulnerability is available.