CVE-2023-27100

CRITICAL

9.8

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.

CVE Details

CVSS v3.1 Score9.8

SeverityCRITICAL

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published3/22/2023

Last Modified2/25/2025

Sourcenvd

Honeypot Sightings0

Affected Products

netgate:pfsense_pluspfsense:pfsense

Weaknesses (CWE)

CWE-307CWE-307

References

http://packetstormsecurity.com/files/171791/pfsenseCE-2.6.0-Protection-Bypass.html(cve@mitre.org)

https://docs.netgate.com/downloads/pfSense-SA-23_05.sshguard.asc(cve@mitre.org)

https://redmine.pfsense.org/issues/13574(cve@mitre.org)

http://packetstormsecurity.com/files/171791/pfsenseCE-2.6.0-Protection-Bypass.html(af854a3a-2127-422b-91ae-364da2661108)

https://docs.netgate.com/downloads/pfSense-SA-23_05.sshguard.asc(af854a3a-2127-422b-91ae-364da2661108)

https://redmine.pfsense.org/issues/13574(af854a3a-2127-422b-91ae-364da2661108)

https://packetstorm.news/files/id/171791(134c704f-9b21-4f2e-91b3-4a467353bcc0)

IOC Correlations

No correlations recorded

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