CVE-2023-27100

Description

Improper restriction of excessive authentication attempts in the SSHGuard component of Netgate pfSense Plus software v22.05.1 and pfSense CE software v2.6.0 allows attackers to bypass brute force protection mechanisms via crafted web requests.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
EPSS 3.03% Top 15%
Vendor Advisory netgate.com Vendor Advisory pfsense.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://docs.netgate.com/downloads/pfSense-SA-23_05.sshguard.asc vendor advisory
https://redmine.pfsense.org/issues/13574 issue tracking patch vendor advisory
http://packetstormsecurity.com/files/171791/pfsenseCE-2.6.0-Protection-Bypass.html
https://packetstorm.news/files/id/171791

Frequently Asked Questions

What is the severity of CVE-2023-27100?
CVE-2023-27100 has been scored as a critical severity vulnerability.
How to fix CVE-2023-27100?
To fix CVE-2023-27100, 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-2023-27100 being actively exploited in the wild?
It is possible that CVE-2023-27100 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~3% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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