CVE-2011-5284: Cross-site request forgery (CSRF) vulnerability in the web management interface in httpd/cgi-bin/shutdown.cgi

Q: How do I fix CVE-2011-5284?

smoothwall: upgrade to newer than 3.1. Exact commands for each OS are on this page.

Q: Is CVE-2011-5284 being exploited?

CVE-2011-5284 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2011-5284 affect?

CVE-2011-5284 affects smoothwall. Severity is medium (CVSS 6.8). Cross-site request forgery (CSRF) vulnerability in the web management interface in httpd/cgi-bin/shutdown.cgi in Smoothwall Express 3.1 and 3.0 SP3 and earlier allows remote attackers to hijack the authentication of administrators for reque

Q: How urgent is CVE-2011-5284?

Priority 50/100. Public exploit reference

This month

MEDIUM 6.8UPGRADE

CVE-2011-5284 is a medium-severity flaw (CVSS 6.8) affecting smoothwall. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cross-site request forgery (CSRF) vulnerability in the web management interface in httpd/cgi-bin/shutdown.cgi in Smoothwall Express 3.1 and 3.0 SP3 and earlier allows remote attackers to hijack the authentication of administrators for requests that perform a reboot via a request to cgi-bin/shutdown.cgi.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	6.8 (Medium)
EPSS exploit chance	2.3% (top 17%)
CISA exploited list	No
Weakness	CWE-352
Published	2014-12-31
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: smoothwall

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2014-12-31 22:59 UTCPublished CVE record published
2026-06-16 23:36 UTCUpdated Record last modified

smoothwall smoothwall UPGRADE

Affected: <= 3.1 · 3.0 sp3

Fixed in: newer than 3.1

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: SmoothWall Express 3.0 - Multiple Vulnerabilities

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2011-5284?

smoothwall: upgrade to newer than 3.1. Exact commands for each OS are on this page.

Is CVE-2011-5284 being exploited?

CVE-2011-5284 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2011-5284 affect?

CVE-2011-5284 affects smoothwall. Severity is medium (CVSS 6.8). Cross-site request forgery (CSRF) vulnerability in the web management interface in httpd/cgi-bin/shutdown.cgi in Smoothwall Express 3.1 and 3.0 SP3 and earlier allows remote attackers to hijack the authentication of administrators for reque

How urgent is CVE-2011-5284?

Priority 50/100. Public exploit reference

Software pages

Apache HTTP Server vulnerabilities

Related CVEs

CVE-2014-9431 MEDIUM 6.8 MITIGATE Multiple cross-site request forgery (CSRF) vulnerabilities in Smoothwall Express 3.1 and 3.0 SP3 allow remote
CVE-2014-9430 MEDIUM 4.3 MITIGATE Cross-site scripting (XSS) vulnerability in httpd/cgi-bin/vpn.cgi/vpnconfig.dat in Smoothwall Express 3.0 SP3
CVE-2014-9429 MEDIUM 4.3 MITIGATE Multiple cross-site scripting (XSS) vulnerabilities in Smoothwall Express 3.1 and 3.0 SP3 allow remote attacke
CVE-2011-5283 MEDIUM 4.3 MITIGATE Cross-site scripting (XSS) vulnerability in the web management interface in httpd/cgi-bin/ipinfo.cgi in Smooth
CVE-2003-0209 HIGH 10.0 DOWNGRADE DOWNGRADE Integer overflow in the TCP stream reassembly module (stream4) for Snort 2.0 and earlier allows remote attacke

References

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