#VU64780 Improper access control in nats-server - CVE-2020-26892

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Main Vulnerability Database Vulnerabilities #VU64780

#VU64780 Improper access control in nats-server - CVE-2020-26892

Published: June 29, 2022


Vulnerability identifier: #VU64780
Vulnerability risk: High
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2020-26892
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
nats-server
Software vendor:
NATS - The Cloud Native Messaging System

Description

The vulnerability allows a remote attacker to execute arbitrary code on the system.

The vulnerability exists due to improper access restrictions in JWT library in NATS nats-server when handling expired credentials. A remote attacker can send a specially crafted request, gain unauthorized access and execute arbitrary code on the system.


Remediation

Install update from vendor's website.

External links