PT-2021-17386 · Kong · Kong Gateway

Published 2021-03-18 · Updated 2022-07-12 · CVE-2021-27306

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Kong Gateway versions prior to 2.3.2.0

Description The issue is related to an improper access control vulnerability in the JWT plugin. This vulnerability allows unauthenticated users to access authenticated routes without a valid token JWT.

Recommendations For versions prior to 2.3.2.0, update to version 2.3.2.0 or later to resolve the issue. As a temporary workaround, consider restricting access to authenticated routes until the update is applied.

Exploit

Fix

Weakness Enumeration

CWE-706

Related Identifiers

CVE-2021-27306

Affected Products

Kong Gateway

References · 6

• 🔥 https://medium.com/@sew.campos/cve-2021-27306-access-an-authenticated-route-on-kong-api-gateway-6ae3d81968a3 · Exploit
• https://osv.dev/vulnerability/CVE-2021-27306 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-27306 · Security Note
• https://docs.konghq.com/enterprise/changelog/#core-1 · Vendor Advisory
• https://t.me/cvenotify/11838 · Telegram Post
• https://medium.com/%40sew.campos/cve-2021-27306-access-an-authenticated-route-on-kong-api-gateway-6ae3d81968a3 · Note