PT-2021-11544 · Socket.Io · Socket.Io

Ni8Walk3R · Published 2021-01-19 · Updated 2021-01-28 · CVE-2020-28481

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions: socket.io versions prior to 2.4.0

Description: The issue is related to Insecure Defaults due to CORS Misconfiguration, where all domains are whitelisted by default.

Recommendations: For versions prior to 2.4.0, update to version 2.4.0 or later to resolve the issue. As a temporary workaround, consider restricting CORS configuration to only allow specific domains.

Exploit

Fix

Origin Validation Error

Weakness Enumeration

CWE-453

CWE-346

Related Identifiers

AZL-44430

CVE-2020-28481

GHSA-FXWF-4RQH-V8G3

SNYK-JAVA-ORGWEBJARSBOWER-1056358

SNYK-JAVA-ORGWEBJARSNPM-1056357

SNYK-JS-SOCKETIO-1024859

Affected Products

Socket.Io

References · 10

• 🔥 https://github.com/socketio/socket.io/issues/3671 · Exploit
• https://osv.dev/vulnerability/AZL-44430 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-28481 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-fxwf-4rqh-v8g3 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-28481 · Security Note
• https://github.com/socketio/socket.io/commit/f78a575f66ab693c3ea96ea88429ddb1a44c86c7 · Note
• https://snyk.io/vuln/SNYK-JS-SOCKETIO-1024859 · Note
• https://t.me/cibsecurity/22266 · Telegram Post
• https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1056357 · Note
• https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWER-1056358 · Note