6.5
MEDIUM
CVE-2023-47090
NATS nats-server Authentication Bypass Vulnerability
Description

NATS nats-server before 2.9.23 and 2.10.x before 2.10.2 has an authentication bypass. An implicit $G user in an authorization block can sometimes be used for unauthenticated access, even when the intention of the configuration was for each user to have an account. The earliest affected version is 2.2.0.

INFO

Published Date :

Oct. 30, 2023, 5:15 p.m.

Last Modified :

Nov. 8, 2023, 12:15 a.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

2.8
Public PoC/Exploit Available at Github

CVE-2023-47090 has a 1 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2023-47090 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Linuxfoundation nats-server
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2023-47090.

URL Resource
http://www.openwall.com/lists/oss-security/2023/10/30/1 Mailing List
https://github.com/nats-io/nats-server/security/advisories/GHSA-fr2g-9hjm-wr23 Vendor Advisory
https://www.openwall.com/lists/oss-security/2023/10/13/2 Mailing List Mitigation

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

This is a list of artifacts from the GitHub Advisory Database where the corresponding JSON files are missing CVE identifiers, despite the fact that these artifacts are listed in the NVD (National Vulnerability Database). I cross-referenced the data, retrieved the missing CVEs, and compiled everything into a list.

Updated: 1 week, 1 day ago
0 stars 0 fork 0 watcher
Born at : Oct. 1, 2024, 9:03 p.m. This repo has been linked 99 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2023-47090 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2023-47090 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Nov. 08, 2023

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
    Changed Reference Type http://www.openwall.com/lists/oss-security/2023/10/30/1 No Types Assigned http://www.openwall.com/lists/oss-security/2023/10/30/1 Mailing List
    Changed Reference Type https://github.com/nats-io/nats-server/security/advisories/GHSA-fr2g-9hjm-wr23 No Types Assigned https://github.com/nats-io/nats-server/security/advisories/GHSA-fr2g-9hjm-wr23 Vendor Advisory
    Changed Reference Type https://www.openwall.com/lists/oss-security/2023/10/13/2 No Types Assigned https://www.openwall.com/lists/oss-security/2023/10/13/2 Mailing List, Mitigation
    Added CWE NIST CWE-863
    Added CPE Configuration OR *cpe:2.3:a:linuxfoundation:nats-server:*:*:*:*:*:*:*:* versions from (including) 2.2.0 up to (excluding) 2.9.23 *cpe:2.3:a:linuxfoundation:nats-server:*:*:*:*:*:*:*:* versions from (including) 2.10.0 up to (excluding) 2.10.2
  • CVE Modified by [email protected]

    Oct. 30, 2023

    Action Type Old Value New Value
    Added Reference http://www.openwall.com/lists/oss-security/2023/10/30/1 [No Types Assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2023-47090 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2023-47090 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.11 }} 0.01%

score

0.44056

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability