Information disclosure in nats.ws, nats.js and nats.deno



| Updated: 2020-10-09
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-26149
CWE-ID CWE-200
Exploitation vector Network
Public exploit N/A
Vulnerable software
 nats.ws
Web applications / Modules and components for CMS

nats.js
Web applications / Modules and components for CMS

nats.deno
Web applications / Modules and components for CMS

Vendor NATS - The Cloud Native Messaging System

Security Bulletin

This security bulletin contains information about 1 vulnerabilities.

Updated: 09.10.2020

Updated list if affected software versions.

1) Information disclosure

EUVDB-ID: #VU47415

Risk: Medium

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

CVE-ID: CVE-2020-26149

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to excessive data output by the application. A remote attacker can gain unauthorized access to sensitive information on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

nats.ws: 1.0.0-1 - 1.0.0-110

nats.js: 0.2.0 - 2.0.0-206

nats.deno: 0.1.0-0 - 1.0.0-8

CPE2.3 External links

https://www.openwall.com/lists/oss-security/2020/09/30/3
https://github.com/nats-io/nats.deno/compare/v1.0.0-8...v1.0.0-9
https://github.com/nats-io/nats.ws/commit/0a37ac2a411ff63f0707cda69a268c5fc4079eb7


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.



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