#VU94660 Improper Check for Unusual or Exceptional Conditions in socket.io - CVE-2024-38355

Vulnerability identifier: #VU94660

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:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2024-38355

CWE-ID: CWE-754

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 perform a denial of service (DoS) attack.

The vulnerability exists due to improper error handling. A remote attacker can send specially crafted Socket.IO packet to the application and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

socket.io: 0.1 - 4.6.1

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External links
https://github.com/socketio/socket.io/security/advisories/GHSA-25hc-qcg6-38wj
https://github.com/socketio/socket.io/commit/15af22fc22bc6030fcead322c106f07640336115
https://github.com/socketio/socket.io/commit/d30630ba10562bf987f4d2b42440fc41a828119c

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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.