CVE-2023-47090

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.

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.26%
Vendor Advisory github.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
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 mitigation mailing list
http://www.openwall.com/lists/oss-security/2023/10/30/1 mailing list

Frequently Asked Questions

What is the severity of CVE-2023-47090?
CVE-2023-47090 has been scored as a medium severity vulnerability.
How to fix CVE-2023-47090?
To fix CVE-2023-47090, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-47090 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-47090 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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