PT-2021-11910 · Unknown · Socket.Io-Parser

Bcaller · Published 2021-01-07 · Updated 2021-07-21 · CVE-2020-36049

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions: socket.io-parser versions prior to 3.4.1

Description: The issue allows attackers to cause a denial of service due to memory consumption via a large packet, as a concatenation approach is used.

Recommendations: For versions prior to 3.4.1, update to version 3.4.1 or later to resolve the issue.

Exploit

Fix

DoS

Allocation of Resources Without Limits

Resource Exhaustion

Weakness Enumeration

CWE-770

CWE-400

Related Identifiers

AZL-45030

CVE-2020-36049

GHSA-XFHH-G9F5-X4M4

Affected Products

Socket.Io-Parser

References · 17

• 🔥 https://blog.caller.xyz/socketio-engineio-dos · Exploit
• https://github.com/socketio/socket.io-parser/commit/dcb942d24db97162ad16a67c2a0cf30875342d55 · Patch
• https://cve.org/CVERecord?id=CVE-2020-36049 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2020-36049 · Security Note
• https://osv.dev/vulnerability/CVE-2020-36049 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-36049 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2020-36049 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-xfhh-g9f5-x4m4 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2020-36049 · Vendor Advisory
• https://osv.dev/vulnerability/AZL-45030 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2020-36049 · Vendor Advisory
• https://github.com/socketio/socket.io-parser/releases/tag/3.3.2 · Note
• https://github.com/socketio/socket.io-parser/releases/tag/3.4.1 · Note
• https://github.com/bcaller/kill-engine-io · Note
• https://t.me/cibsecurity/21801 · Telegram Post