#VU78488 Uncaught Exception in socket.io-parser - CVE-2023-32695

Vulnerability identifier: #VU78488

Vulnerability risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-32695

CWE-ID: CWE-248

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
socket.io-parser
Client/Desktop applications / Software for system administration

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 a 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-parser: before 4.2.3

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External links
https://github.com/socketio/socket.io-parser/releases/tag/4.2.3
https://github.com/socketio/socket.io-parser/commit/3b78117bf6ba7e99d7a5cfc1ba54d0477554a7f3
https://github.com/socketio/socket.io-parser/commit/2dc3c92622dad113b8676be06f23b1ed46b02ced
https://github.com/socketio/socket.io-parser/security/advisories/GHSA-cqmj-92xf-r6r9

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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.